Subscriptions for a given period are the number of transactions that start active subscriptions. While subscribers are just the sum of all users with an active subscription for a given period.
Users can opt-out of the subscription renewal (turn off auto-renew). Technically they are still subscribers, but they won't pay you in the next period. It's important to know how many users won't prolong the subscription as it affects your payroll for the next month.
The easiest way to do so is via App Store Connect / Google Play Console. However, you won't have the detailed analytics and control over your data.
So the best way to do so is to handle the Apple/Google server2server notifications and build custom views.
Adapty provides you with:
You get all this data for iOS and Android instantly as soon as you install our SDK.