Tech Stack Duplication Inspector
Estimate the SaaS spend wasted on overlapping tools.
Around $47,520/year looks redundant across 34 tools. Map features to owners, then consolidate the overlaps, most stacks have 3–5 tools doing one job.
Sharpen the estimate by listing tools against jobs-to-be-done, anywhere two tools claim the same job is a consolidation candidate.
About this calculator
Revenue tech stacks grow by accretion, every new hire, campaign, or initiative adds another tool, and nobody ever goes back to check whether three of them are quietly doing the same job. This calculator takes a plain estimate of feature overlap across your stack and converts it into the redundant dollars leaving the bank account every month.
How to use it
- Enter total SaaS spend per month across your revenue stack.
- Enter the number of tools currently in that stack.
- Enter your estimated feature overlap, the share of spend going toward capabilities two or more tools duplicate.
- Read average cost per tool, redundant spend per month, and the annualized figure.
Methodology
Average cost per tool is simply total monthly spend ÷ number of tools, a rough per-seat reference point rather than a precise per-tool cost.
Redundant spend per month is total monthly spend × overlap percentage. Redundant spend per year is that figure × 12.
The tool flags overlap of 20% or higher as a serious problem, 10-19% as worth watching, and under 10% as contained, bands calibrated on the observation that most stacks accumulate 3-5 tools doing one job somewhere along the way.
The overlap percentage is a manual estimate this calculator takes at face value, it doesn't audit your actual tool list. The fine print in the tool itself points to the fix: map each tool to the specific job it does, and any two tools claiming the same job become your consolidation candidates.
FAQ
List every tool in the stack against the specific job-to-be-done it covers, lead enrichment, email sequencing, call recording, and so on. Any job with two or more tools assigned to it is overlap; sum the spend on the redundant ones and divide by total stack spend for a real number instead of a guess.
Not on its own, tool count only becomes a cost problem when multiple tools are doing the same job. A stack with 40 well-differentiated point tools can have near-zero overlap, while a stack with 15 tools can still waste heavily if three of them all do lead enrichment.
New hires bringing tools they used at a previous company, and teams adopting a "free trial" tool for a one-off project that never gets decommissioned. A recurring tooling inventory review, not just a one-time cleanup, is what keeps redundancy from rebuilding.