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Subscription LTV calculator

Work out what a subscriber is worth over their lifetime after the store's cut, and what one install is worth — the most you can pay to get it. Monthly or yearly plans.

Lifetime value per subscriber

$84.92

$8.49 net × 10 months

Value per install

$2.72

The most one install is worth paying for

Average paid lifetime

10 months

1 ÷ churn

How it works

  • Net price: your price minus the store's commission. Both stores take 15% from small developers; on the App Store a subscription drops from 30% to 15% after its first year, and Google Play takes 15% on subscriptions from the start.
  • Expected paid periods: 1 ÷ churn. With 10% monthly churn, the average subscriber pays for 10 months.
  • Lifetime value: net price × expected periods.
  • Value per install: lifetime value × the share of installs that start a trial × the share of trials that pay. That is the ceiling for what an install is worth buying.

Questions

What churn should I use?
Use your own if you have it. Without it, many consumer subscription apps see monthly churn in the high single digits to low teens; test a few values and see how much the answer moves.
Why does the store fee matter so much?
It comes off every payment. The difference between 15% and 30% is a sixth of your revenue for as long as the subscriber stays.
What does this leave out?
Refunds, taxes, discounts and the fact that churn is higher in the first months than later. It is the standard simple model: good for comparing prices and plans, not for a forecast.

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