Free calculators
13 free SaaS cost calculators
Interactive math that turns vendor pricing pages into the actual cost on your invoice. No signup. No email gate.
ROI & payback
Defend a renewal or model whether an upgrade pays for itself.
Stack cost calculator
Pick multiple tools, see total monthly + annual cost for your team size.
OpenSaaS ROI calculator
Plug in a tool's monthly cost and the monthly value it returns, and see ROI %, annual net gain, and the break-even tipping point.
OpenSaaS payback period calculator
Enter monthly cost and monthly net value, get the exact number of months until break-even.
OpenCost modeling
Project actual spend across seats, AI, consolidation, and utilization.
Per-user cost calculator
Pick a tool, see per-user cost at every tier with seat-minimum warnings.
OpenVendor consolidation savings calculator
Replace N point tools with one platform.
OpenFree-trial conversion impact calculator
For tools you sell, model how a 1-point swing in free-trial conversion rate moves annual revenue.
OpenSaaS contract minimum penalty calculator
Many vendors require a seat minimum even when you're not using them.
OpenAI cost per employee calculator
Stack AI subscriptions (ChatGPT, Claude, Copilot, Cursor, etc.
OpenTrue cost per active user calculator
Per-seat cost lies when half your seats sit idle.
OpenProcurement
Renewal and stack-audit math that gives you the negotiation gap.
Annual vs monthly savings
Pick a tool and tier, see exact savings from annual billing vs paying monthly.
OpenSaaS renewal uplift forecaster
Most vendors push 5-15% annual price uplifts at renewal.
OpenSaaS stack waste finder
Quick triage: enter your tool count, annual spend, and rough % of features actually used.
OpenLocalization
FX-aware conversions for non-USD budgets.