What three years cost: a custom build or a subscription
The comparison between paying once and paying every month almost always looks different after three years than it did on the day the contract was signed. This calculator draws both cumulative cost curves across 36 months and shows whether and when they cross.
You enter all four numbers yourself — we substitute no rates and no averages, because we do not know your contract. The result is arithmetic from those assumptions, and the full formula unfolds under the chart.
What three years cost: a custom build or a subscription
Setup, migration, configuration. If the alternative costs nothing at the start, enter 0.
Fill in every field — without them there is nothing to calculate. We substitute no default values, because each of them would be our assumption rather than yours.
This is arithmetic from the assumptions you entered, not our forecast. Every number in the result comes from the fields above — there are no market averages and no estimates of ours in it.
You have the numbers. Let us talk about them.
Pick a time for a call or leave your number — we will go through your assumptions together and say which of them do not hold up in practice.