MCP integration · Free

Every free calculator on this site, 117 of them and growing, is connected to Claude and other MCP-compatible AI assistants through a public Model Context Protocol server. Results come with a verdict on whether the number is healthy, and guided reviews check your unit economics, ad spend or RevOps in one go. The articles, case studies and live booking calendar are connected too. Connect once, with one click or a paste, and run the numbers, pull in the research, or find a time to talk without leaving your AI assistant. No account, no API key.

Connect your AI assistant See it in Claude

Why this exists

A calculator page answers one question, with numbers you type in by hand. That is fine the first time. It gets tedious the fifth time, when you are running the same LTV:CAC or CAC payback math with slightly different assumptions in a planning conversation, or when you are already mid-conversation with an AI assistant about your growth plan and have to stop, open a new tab, find the right calculator, and type the same numbers in again.

MCP (Model Context Protocol) removes that step. It is an open standard, not something specific to this site, that lets an AI assistant call external tools directly during a conversation. Once your assistant is connected to this server, asking it a question like “what is my CAC payback period if I spend $40,000 a month and close 12 customers” runs the actual calculator on this site in the background and returns the real result, inline, without you leaving the conversation.

See it in Claude

Screen recordings of the connector in Claude, unedited apart from trimming. Claude asks before each tool runs, so every approval is shown as it happened.

Claude running the LTV:CAC calculator: a result card with CAC, LTV, ratio and payback, red verdicts, then the inputs changed and the verdicts turning green
A calculator, a verdict, and a card you can adjust. Asked for LTV:CAC in plain words, Claude runs the calculator and shows the result as a card: money in dollars, a verdict on each number, and inputs you can change to recalculate in place.
Opening the Unit economics health check prompt from the connector menu in Claude, filling in business model, segment and numbers, and the first calculator result
Starting a guided review. The unit economics health check, picked from Claude's menu. You fill in what you know, and Claude asks before each calculator runs.
Claude completing the review: payback result, open call times as buttons, and a scorecard table with metric, value, verdict and next step
Ending with a scorecard. Claude works through the remaining calculators, grades each result, cites a relevant article, shows open call times, and finishes with a scorecard and one next step per metric.
Claude judging 4% monthly churn as high for SMB, then showing contact details for confirmation with the note that nothing has been sent yet
"Is this number bad?" and asking to be contacted. A single number gets a verdict against the benchmark for your segment. Asking Rahul to get in touch stops at a confirmation: nothing is sent until you approve it.
An ad spend waste result in euros, then the Benchmark bands resource attached in Claude and four SaaS metrics graded against it
Any currency, and the benchmarks as reference. Described in plain words, the right calculator is found and run in euros. The benchmark table can also be attached to a chat so Claude grades several metrics at once.

Connect in one step

Pick your AI assistant below. Claude, Cursor, and VS Code all connect with a single click or a paste, no manual JSON editing required unless you want it.

What to ask once connected

You do not need to know a tool’s exact name. Describe what you want in plain language and your assistant will pick the right calculator. A few examples:

  • “What is my ROAS if I spent $50,000 and made $250,000 in revenue at 60% margin?”
  • “My MRR is $80,000, project my ARR a year out if I add $6,000 in net-new MRR every month.”
  • “Is a CRM worth it for a 15-person sales team closing 24 deals a year at $180,000 average deal size?”
  • “Run the Rule of 40 for a company growing 35% year over year with a 12% profit margin.”

Every tool response includes a link back to the full interactive calculator on this site, so you can dig deeper, adjust assumptions visually, or share the link with a colleague.

Answers, not just numbers

A ratio on its own does not tell you much. “LTV:CAC 2.1” only becomes useful once you know the usual target is 3 to 5, and that the answer changes with who you sell to. So the headline results come with a verdict and the target range, and where the verdict is weak, a link to the article on fixing it.

  • Benchmark verdicts. LTV:CAC, CAC payback, churn, net revenue retention, the Rule of 40, the Magic Number, the quick ratio, gross margin, conversion rate and ROAS are graded against common rules of thumb, for SMB, mid-market or enterprise customers. ROAS is judged against your own break-even point.
  • Any metric, on request. Ask “is 4% monthly churn bad for an SMB SaaS?” or “is a burn multiple of 2.4 a problem?” and you get the band, the target and what it means.
  • Your currency. Mention it and money reads the way you expect, $250,000 or ₹1,20,000 rather than 250000.00.
  • Interactive results. In apps that support MCP Apps, a result appears as a card in the chat. Change an input and recalculate without retyping the question, or book a call from the card.
  • Asked, not guessed. If a number is missing, apps that support forms ask you for it directly instead of your assistant filling in an assumption.

Guided reviews

For a fuller picture than one calculator gives, start a guided review. Your assistant asks for the numbers it needs, runs the right calculators, grades each result and finishes with a short scorecard and one next step per metric. In Claude they appear in the prompt menu; in other apps, look for “prompts” or slash commands, or just ask for the review by name.

Unit economics health check
Scores LTV:CAC, CAC payback, churn and retention for your business model and customer segment, then gives one next step per metric.
Paid media waste audit
Checks ROAS against your break-even point, compares what the ad platforms report with blended results, and estimates spend lost to fraud, frequency and creative fatigue.
RevOps readiness review
Finds where pipeline leaks between marketing, sales and your CRM, and what each leak costs.
Marketing budget plan
Sizes next year's budget, sanity-checks it against revenue, and splits it between brand, performance and channels.
Do I need a fractional CMO?
Compares in-house and fractional marketing leadership on cost and time to impact, with a relevant case study.

Research and booking, in the same chat

The same connection lets your assistant search the articles, guides and case studies on this site, read one in full so it quotes it accurately, and check when you can talk. Try:

  • “What has Rahul written about server-side tracking and signal loss? Summarise it with links.”
  • “Find a case study where a B2B SaaS company lowered its cost per lead, and walk me through what changed.”
  • “When can I talk to Rahul this week? I’m in New York.”
  • “Ask Rahul to get in touch with me about fixing our attribution.”
Find the right calculator
Searches every calculator by what you want to work out, in plain words, and says which inputs each one needs.
Run any calculator by name
Runs any calculator on the site. If a number is missing, apps that support forms ask you for it directly.
Is this number good?
Grades a metric (LTV:CAC, CAC payback, churn, NRR, Rule of 40, burn multiple, ROAS and more) against common benchmarks for your segment, with the target range.
Search articles, guides and case studies
Finds the most relevant insights, long-form guides and client case studies for a question, with summaries and links your assistant can cite.
Read an article or case study in full
Gives your assistant the full text of one article or case study, so it quotes accurately instead of guessing.
Check open call times
Lists open times for a free call, live from the calendar, in your time zone. Each time links to the booking form with that time already selected; you confirm on the site.
Ask Rahul to get in touch
Sends your name, email, phone number and what you need help with, so Rahul can reply directly. Nothing is sent until you submit or agree to it.

Booking always finishes on this site: the assistant finds the time, you confirm it with your name, email and phone number. A request for Rahul to get in touch is only sent once you have seen the details and approved them.

If your app struggles with 124 tools

Some assistants cap how many tools one connection can load, or pick tools less reliably from a long list. For those, connect to the compact endpoint instead: it loads 7 tools, and your assistant still reaches every calculator by searching for it and running it by name. Results are the same.

https://rahuldsarker.co/api/mcp?toolset=compact

Both endpoints also offer the calculator catalog, the benchmark table and every article and case study as resources your assistant can attach as context.

All 117 connected calculators

Every tool here maps to a real, interactive calculator on this site. Search by name or what it does, filter by category, or click any name to open the full version directly.

Showing 117 of 117 calculators

ROAS & Break-even ROAS Calculator
Calculate ROAS, ACOS, break-even ROAS, and profit from ad revenue, ad spend, and gross margin.
LTV : CAC Ratio Calculator
Calculate customer LTV, CAC, the LTV:CAC ratio, and CAC payback period.
Ad Spend Waste Calculator
Estimate how much monthly ad budget leaks to fraud and tracking/attribution waste.
CRM ROI Calculator
Weigh a CRM subscription and implementation cost against the win-rate lift it buys.
MQL Calculator
Turn traffic and conversion rates into MQL volume, cost per lead, and cost per MQL.
ARR Multiple Calculator
Apply conservative, market, premium, and custom ARR multiples to see the valuation range they imply.
MRR to ARR Calculator
Annualize MRR into ARR, with an optional 12-month projection from expected net-new monthly revenue.
SaaS Magic Number Calculator
Measure how efficiently sales and marketing spend turns into new ARR.
CPL / CPA Calculator
Calculate cost per lead, expected customers, and cost per acquisition from spend, leads, and a lead-to-customer conversion rate.
ROAS to MER Converter
Compare a platform-reported ROAS against your true blended Marketing Efficiency Ratio (MER) to see how much pixels over-claim.
PPC Click Volume Predictor
Predict monthly clicks, conversions, and effective CPA from budget, CPC, and conversion rate, and check whether volume clears the ~50 weekly conversions platforms need to exit learning.
Ad Creative Fatigue Forecaster
Forecast how many days until an ad audience hits its fatigue frequency ceiling, and the date to have fresh creative ready.
CPA to CAC Scalability Matrix
Project how CPA/CAC inflates as you double and triple ad spend, given a per-doubling decay rate.
Retargeting Pool Size Estimator
Estimate the addressable retargeting pool from monthly visitors, window, and match rate, plus the budget needed to hit a target weekly frequency.
Performance Marketing Margin Protector
Calculate the break-even and maximum CPA that protect a target profit margin, and check current CPA against that ceiling.
Impression Share Opportunity Matrix
Estimate missed conversions and revenue from operating below 100% impression share on a search campaign.
Cross-Channel Ad Spend Allocator
Suggest a starting Google/Meta/LinkedIn budget split based on total budget and average contract value.
LinkedIn Ad Cost Threshold Calculator
Calculate implied CAC from LinkedIn CPC, landing conversion, and close rate, and check it against the maximum CAC a contract can fund.
Seasonal Ad CPM Predictor
Project CPM and reach impact for a given season (back-to-school, Black Friday, Q4, January) from a baseline CPM.
Micro-Budget Ad Feasibility Checker
Check whether a small daily ad budget can generate the ~50 weekly conversions platforms typically need to exit the learning phase.
Google Search Impression Share Value Estimator
Estimate missed clicks, conversions, and revenue from operating below 100% search impression share.
Lookalike Audience Pool Calculator
Estimate the addressable pool from a lookalike percentage and market population, and grade seed audience quality.
Ad Frequency Risk Checker
Calculate average ad frequency from impressions and reach, and flag whether it is healthy, caution, or fatigue territory.
Landing Page vs. Ad Match Quality Auditor
Score message-match continuity between an ad and its landing page across five weighted criteria (headline, keyword, offer, CTA, visuals).
UTM Generator & Validation Helper
Generate a cleaned, encoded UTM-tagged URL from source, medium, campaign, term, and content, and flag common tagging errors.
Paid Search Intent Tier Grader
Grade a list of search keywords into transactional, commercial, or informational intent tiers, and flag the wasted-intent share.
Creative Testing Duration Forecaster
Forecast how many days an ad creative test needs to reach a sound sample size, from daily spend, expected CPA, variant count, and conversions needed per variant.
Post-iOS14 Blended Attribution Modeler
Compare summed platform-claimed revenue against actual backend revenue to quantify over-reporting and the true blended ROAS.
In-House vs Fractional CMO Calculator
Compare the loaded annual cost of a full-time CMO hire against a fractional CMO retainer, including the ramp-up cost before a full-time hire makes impact.
Growth Runway Extension Simulator
See how much cash runway a cut to gross burn buys you, given current cash, burn, and revenue.
Total Addressable Market (TAM/SAM/SOM) Estimator
Build a bottom-up TAM, SAM, and SOM from company counts, reachable share, ACV, and obtainable market share.
Brand vs Performance Budget Allocator
Split a marketing budget between brand and performance spend based on company stage, using the Binet & Field long/short research as a directional guide.
Product-Market Fit Scoring Grader
Score product-market fit signals (the "very disappointed" test, retention, organic pull, NPS) into a weighted 0-100 PMF score and scale-readiness verdict.
Customer Expansion Revenue Matrix
Compound net monthly expansion revenue (upsell + cross-sell minus contraction) forward 1, 2, and 3 years from current ARR, with no new logos.
Growth Strategy Prioritization Tool (ICE Scoring)
Rank growth ideas by ICE score (Impact, Confidence, Ease averaged, each scored 1-10) to decide what to run next.
Pricing Elasticity Sandbox
Model how a price change affects volume, revenue, and gross profit given a price elasticity of demand.
Burn Rate Optimization Forecaster
Simulate month by month, at a given revenue growth rate and gross margin, how many months until gross profit covers fixed burn, and the cash needed to bridge the gap.
Marketing Agency Pitch Bullshit Detector
Score an agency pitch on whether it's grounded in real, verifiable outcomes or dressed-up vanity metrics and vague promises.
Competitor Ad Spend Benchmarker
Estimate a competitor\'s ad spend from share-of-voice data, assuming spend maps roughly to share of voice within the same auction.
LTV Growth Multiplier Simulator
Show how much gross-margin LTV grows when monthly churn improves, using LTV = ARPA x gross margin / monthly churn.
Channel Saturation Estimator
Project how many months until a channel\'s compounding CPA inflation pushes it past your max viable CPA.
Product-Led Growth Feasibility Grader
Score whether a product can support a self-serve, product-led growth motion, versus a hybrid or sales-led approach, across 5 weighted criteria.
Growth Team Hiring Sequence Planner
Recommend the right growth/marketing hiring sequence for your ARR band, from founder-led at pre-$1M to a full leadership team at $10M+.
Bootstrapped vs Venture-Backed Scaler Modeler
Compare a founder\'s take-home from a bootstrapped exit against a venture-backed, diluted exit, and find the break-even exit value where raising starts to pay off.
Internationalization Market Prioritization Grid
Score a candidate international market on size, localization ease, competitive whitespace, regulatory ease, and payments/GTM readiness to decide whether to prioritize, plan, or deprioritize it.
Annual Growth Goal Back-Calculator
Work backwards from an annual revenue goal, through ACV and close rates, to the traffic and leads needed per month to hit it.
Organic Traffic Value Monetizer
Value organic search traffic in ad-equivalent spend (clicks x CPC), and split out the non-branded portion that represents genuine, defensible SEO value.
Strategic Pivot Risk Grader
Grade the risk of pivoting upmarket to enterprise across sales motion, pricing/packaging, cash buffer, product compliance, and team experience.
Conversion Funnel Calculator
Calculate conversion rate and the traffic needed to hit a target number of conversions at that rate.
A/B Test Significance Calculator
Run a two-proportion z-test on an A/B test to get relative uplift and statistical confidence.
Page Speed Leak Calculator
Estimate the extra conversions and revenue recovered by cutting page load time, using an industry-average per-second conversion penalty.
Above-the-Fold Messaging Clarity Grader
Score a hero section\'s five-second clarity across five weighted checks (what you do, outcome, CTA, jargon, subhead) into a 0-100 clarity verdict.
Micro-Conversion Value Modeler
Back into a proxy dollar value for an early-funnel micro-conversion from the value of a won customer and the micro-to-customer conversion rate.
Cart Abandonment Calculator
Calculate revenue lost to cart abandonment and how much a recovery flow could win back.
CTA Visual Hierarchy Tester
Score a call-to-action button\'s visibility using its real WCAG contrast ratio against the background plus size and placement.
Typography Legibility Grader
Score body copy legibility on font size, line height, and line length against ideal bands, into a 0-100 score.
Mobile Checkout Friction Tester
Score a mobile checkout flow\'s friction from step count, guest checkout, wallet pay, autofill, and mobile input types into a 0-100 score.
Social Proof Strength Auditor
Score the persuasive strength of testimonials and proof elements across six weighted criteria into a 0-100 credibility score.
Value Proposition Strength Grader
Score a value proposition on clarity, specificity, differentiation, outcome focus, and pain relevance into a 0-100 score.
Lead Magnet Copy Grader
Score a lead magnet\'s perceived opt-in value across five weighted criteria into a 0-100 score.
Exit-Intent Timing Optimizer
Estimate the best time to fire a timed exit-intent popup, based on average session duration, pages per session, and engaged-visitor share.
Friction Point Identifier
Count how many of 8 common conversion-flow friction points are present and turn that into a flow health score.
Product Tour Effectiveness Grader
Model a multi-step product tour funnel from start through completion to activation, and flag the biggest drop-off step.
Pricing Page Architecture Grader
Score a pricing page\'s choice architecture across six weighted criteria (tiers, highlighting, anchoring, comparison, CTA, billing toggle) into a 0-100 score.
Trust Badge ROI Estimator
Estimate the monthly and annual revenue lift from adding trust/security badges near a conversion point.
UX Pattern Anti-Pattern Checker
Count how many of 8 known dark patterns are present in a user experience and turn that into an integrity score.
Video Conversion Modeler
Model the pipeline and revenue a video drives from views, completion rate, and post-completion conversion rate.
Lead Quality & Intent Evaluator
Split signups into corporate-email vs personal-email intent segments, apply different close rates to each, and score overall lead quality.
Thank-You Page Revenue Maximizer
Estimate the extra revenue from adding a secondary action (referral, upsell, booking, or community) on a thank-you page, using typical take rates.
Sales Pipeline Leak Evaluator
Run leads through the Lead → MQL → SQL → Opportunity → Win funnel and flag the weakest converting stage.
Pipeline Velocity Equation Engine
Calculate sales velocity, the revenue your pipeline generates per day, from open opportunities, win rate, deal value, and cycle length.
Lead Routing Delay Cost Calculator
Estimate the deals and revenue lost each month from slow lead response times, modeling how conversion decays with response delay.
CRM Cleanup ROI Calculator
Quantify the rep hours and revenue lost to dirty CRM data each year, and the selling capacity a cleanup would free up.
SDR Capacity & Inbound Quota Planner
Work out how much inbound volume an SDR team can properly cover per month, and how many reps you would need to fully cover current inbound.
MQL-to-Sales Disconnect Analyzer
Measure the marketing spend wasted on MQLs that sales rejects, based on the accept rate between the two teams.
Lead Scoring Logic Architect
Score a lead on weighted fit and behavior criteria and get a routing recommendation (route to sales, nurture, or disqualify).
Lead Grading Calculator
Turn firmographic fit criteria into an A–F lead grade, distinct from behavioral lead scoring.
GTM Tracking Audit Scorecard
Score your Google Tag Manager container health across eight weighted dimensions covering tag hygiene, consent, and reconciliation.
Form Field Friction Cost Calculator
Estimate the extra leads and pipeline value unlocked by trimming form fields, using a per-field conversion recovery rate.
Tech Stack Duplication Inspector
Estimate the monthly and annual SaaS spend wasted on overlapping tools, from total spend, tool count, and estimated feature overlap.
Sales Cycle Length Forecaster
Project total deal cycle length by adding stakeholder count and compliance/procurement gates to a base single-buyer cycle.
No-Show Rate Revenue Restorer
Calculate the revenue lost each month to demo no-shows, and how much would be recovered by cutting the no-show rate by 5 or 10 points.
Inbound Call Center Routing Auditor
Estimate the customers and ARR put at risk each year by slow support routing and SLA breaches.
AE/SDR Hand-off Friction Calculator
Quantify meetings and revenue lost when the SDR-to-AE hand-off is inconsistent, from scheduling, notes, CRM completeness, and SLA follow-up quality.
RevOps Maturity Benchmarker
Score RevOps maturity across five dimensions (systems, attribution, governance, forecasting, automation) on a 1-4 scale and identify the weakest area.
Cross-Sell Opportunity Estimator
Estimate the expansion ARR available from cross-selling a second product into your existing single-product customer base.
Data Enrichment Value Predictor
Compare the cost of manual rep research against an enrichment tool subscription, and calculate the net monthly savings and ROI.
Renewals Pipeline Health Grader
Grade an account renewal on weighted 90-day signals (adoption, sponsor strength, support sentiment, realised value) and quantify ARR at risk.
Sales Commission Tier Modeler
Model a rep\'s commission payout under a base-plus-accelerator plan, and check it against gross margin to catch plans that outrun profitability.
Historical Data Drift Estimator
Estimate how much of a contact database has gone stale since it was last cleansed, using an annual B2B data decay rate.
Contract Redline Duration Predictor
Predict how long legal redlines will take, whether the deal will slip past quarter-end, and the revenue at risk.
Net Revenue Retention Forecaster
Project ARR over three years from net revenue retention (gross churn and expansion), compounded on the existing base with no new customers.
Rule of 40 Sandbox
Add YoY revenue growth and profit margin to see if a SaaS business clears the Rule of 40 benchmark.
CAC Payback Period Matrix
Calculate months to recover fully-loaded CAC on a gross-margin basis versus a raw-revenue basis.
SaaS Churn Cohort Visualizer
Project how a customer cohort decays over time under a monthly churn rate, and the implied average customer lifespan.
ACV Weight Planner
Break ARR down by SMB versus enterprise segments to see revenue concentration and per-customer averages.
Expansion Revenue Impact Simulator
Estimate expansion ARR from an upsell offer and the new-logo CAC it would take to buy the same growth.
Freemium to Paid Pipeline Modeler
Model monthly and annual new ARR from a freemium funnel, and the ARR still lagging in the upgrade pipeline.
SaaS Quick Ratio Engine
Divide MRR gained (new + expansion) by MRR lost (contraction + churn) to measure growth durability.
Gross Margin Impact Calculator
Calculate gross profit and gross margin from revenue, infrastructure cost, and support/delivery cost.
Seat Utilization Risk Assessor
Estimate renewal ARR at risk from low seat utilization on a subscription contract.
Enterprise Contract Discount Evaluator
Show how much lifetime profit an enterprise discount actually gives away, since cost-to-serve does not drop with price.
MRR Bridge Planner
Bridge starting MRR to ending MRR across new, expansion, resurrected, contraction, and churned movements.
LTV : CAC Ratio Health Grader
Grade the LTV:CAC ratio on a gross-margin basis against health bands, from losing money to under-investing.
SaaS Valuation Multiple Predictor
Estimate a directional ARR multiple and enterprise value range from growth, net revenue retention, and gross margin.
Product Usage Frequency Grader
Grade product stickiness from DAU/MAU into bands from idle tab to daily utility.
B2B Implementation Delay Cost Calculator
Estimate revenue delayed each year by a slow onboarding gap between signature and go-live, and what halving it recovers.
Customer Success Capacity Planner
Compare CSM account load against a healthy book size to see capacity utilization and the hiring gap.
Deferred Revenue Amortization Planner
Straight-line an upfront payment across the contract term to see revenue recognized to date versus the remaining deferred-revenue liability.
Net Promoter Score Impact Modeler
Turn promoter and detractor percentages into NPS, net advocacy, and the organic referral pipeline promoters generate.
Marketing Budget Calculator
Size an annual and monthly marketing budget as a percentage of revenue, based on a growth posture (maintain, grow, or aggressive) or a custom override.
RTO-Adjusted ROAS Calculator (India COD)
Work out ROAS after RTO on cash-on-delivery orders: delivered revenue, RTO cost and effective cost per delivered order.
Sales Quota Calculator
Compare top-down quotas with bottom-up rep capacity, and see capacity against target.
Sales Rep Ramp Time and Cost Calculator
Estimate ramp cost, bookings lost during ramp, first-year bookings and payback month for new reps.
Email Marketing ROI Calculator
Monthly revenue, ROI, revenue per email and per subscriber from an email programme, ecommerce or B2B.
Seat vs Usage Pricing Calculator
Compare per-seat, usage-based and hybrid pricing revenue across small, mid and large customers.
Advertising to Sales Ratio Calculator
Calculate the advertising-to-sales (A/S) ratio from ad spend and net sales, with an optional prior period for the trend.

FAQ

Is this free?

Yes. There is no account and no API key. Calculators are unlimited; searching, reading and checking the calendar have generous per-minute limits that only stop runaway automated use. The only cost, if any, is whatever your AI assistant itself charges you for usage, this integration adds nothing on top of that.

What is MCP?

Model Context Protocol is an open standard that lets an AI assistant call external tools directly during a conversation, instead of you copying numbers back and forth. Once connected, asking "what is my LTV:CAC ratio" runs the real calculator on this site and returns the actual result inline in your chat.

Which AI assistants support this?

Claude supports it directly through Settings → Connectors, just paste the URL, no config file. Cursor and VS Code connect with a single click. Other MCP-compatible tools generally support the same URL-based connection. Broad consumer support in apps like the standard ChatGPT interface varies and is rolling out unevenly across providers, check your specific app's settings for "MCP servers," "connectors," or "custom tools."

Is my data sent anywhere or stored?

The numbers and questions you send are used only to compute the result or run the search, then discarded, never stored. To see which tools are useful, the server keeps an anonymous count of which tool, guided review or resource was used, the name of the app that used it (for example Claude or Cursor) and the country. Nothing that identifies you is kept. The one exception is when you ask Rahul to get in touch: the name, email, phone number and message you submit are saved so he can reply, as with the contact form.

How does it know whether my number is good?

Headline results such as LTV:CAC, CAC payback, churn, net revenue retention, the Rule of 40 and ROAS come with a verdict ("Healthy", "Below target") and the target range, judged against widely used operator and investor rules of thumb, adjusted for SMB, mid-market or enterprise customers where that matters. ROAS is judged against your own break-even point when you give your margin. They are rules of thumb for framing a decision, not guarantees, and each verdict says which rule it uses.

Will I see charts or cards, or just text?

Apps that support MCP Apps show calculator results and open call times as an interactive card in the chat: you can change the inputs and recalculate in place, open the full calculator, or pick a call time. Every other app gets the same results as text, with the same links.

Can my AI assistant book a call for me?

It can find a time that suits you. Ask something like "when can I talk to Rahul this week?" and it lists open times from the live calendar, each with a link that opens the booking form with that time already selected. You add your name, email and phone number and confirm on the site, so nothing is booked without you. If you would rather Rahul reached out, ask the assistant to pass on your details: you see exactly what is sent and approve it first.

Can I request a calculator that is not listed?

Yes, this list grows over time. If there is a specific calculator you want available as an MCP tool, book a free consultation and mention it, or check back, new tools are added regularly.

Want a straight read on what your numbers actually mean?

A calculator gives you a number. A 30-minute call tells you what it means for your business and what to do next.

It starts with a 30-minute call. Pick a time below.

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