Subscription revenue projector
this projects where your subscription revenue lands, month by month, once churn is fighting your new signups. the point it makes most clearly is that every business has a revenue ceiling at a given signup rate, and churn decides where that ceiling sits.
this calculator needs javascript. the explanation below works without it.
The ceiling is the important output
at a steady signup rate, subscriber count settles at new signups divided by churn rate. 300 new a month at 8% churn settles at 3,750 subscribers, and no amount of patience moves it. only more signups or less churn will.
this is why growth stalls feel so sudden. nothing broke. you simply reached the level where the users you lose each month equal the ones you win, and the curve flattens.
Two ways to raise it
more signups moves the ceiling in a straight line. halve your churn and you double the ceiling. that is why retention work compounds and acquisition work does not.
try it above. change signups from 300 to 600 and watch the ceiling double. then put signups back and halve churn instead, and watch it double again for free.
Numbers tell you what. They do not tell you what to do.
bring your real numbers to the breakdown call and leave with a plan for them. free, no pitch deck.
Common questions
Does this handle annual plans?
convert them first. an annual plan at $96 is $8 a month, and its churn is far lower than a monthly plan, so model annual and monthly separately if the mix is significant. blending them hides the fact that annual subscribers are usually your entire profit.
Why does my MRR grow slower than my signups?
because churn is taking a percentage of a growing base. early on you lose a percentage of very little, so growth looks linear. later that same percentage is a large number, and it eats most of what you add.
Other plan tools
CAC calculator
free CAC calculator. put in your ad spend and new users, get paid CAC and blended CAC. no signup, no email.
PlanLTV calculator
free lifetime value calculator. put in price, margin and churn, get LTV and how long an average user stays. no signup.
PlanLTV:CAC and payback
free LTV:CAC calculator with payback period. find out if your unit economics work and how many months to earn a user back.
PlanBreak-even CAC
work out the most you can afford to pay for a user before you lose money, and the target CAC that leaves healthy margin.
Bring one real growth problem. Leave with the fix.
the breakdown call is free. no pitch deck, no agency handoff.