How it works
Ranking tells you what matters. These four steps tell you what it is worth: enter the numbers, read NPV and payback, compare build, buy or rent, and save the scenario.
Start with a feature from your shortlist, for example the top items of a RICE-ranked backlog. Type the build cost, the expected yearly benefit, the yearly running cost and how many years the benefit lasts. Set your confidence and the discount rate you want to use.
See the net benefit before discounting, the NPV at your discount rate, the payback period in months and the FVI score. Every formula is shown, so you can check the math.
With a free account, price the same decision three ways: build it yourself, buy a ready product, or rent it as a service. Each option gets its own NPV at the same discount rate.
Save the scenario in your free account and come back to it when the numbers change. Edit any input and the results update.
NPV
A number you can defend
FVI
Value per unit of cost
Payback
Months until the cost is back
Yes. The calculators and the guides are free, with no sign-up. A free account only adds saved scenarios you can come back to.
No. The calculator shows plain totals first. Net present value is in the Expert tab: each later year counts for a little less, at a rate you set, such as your loan rate, and it tells you whether that changes the answer.
Only the ones for the options you pick: a price per person, a ready-made price, a developer's quote, or your own hours and what an hour of your time is worth. Each question says where to find the number, and examples fill in until you type your own.
Every result shows the full calculation, so you or your finance team can check it. Figures that come from a source link to it, and the rest are labeled as our assumption. It does not know your market or your risks, so treat it as one input to the decision. For a large commitment, check the numbers with your accountant.
Cookie Tech, a technology company near Athens, Greece.