Stripe Revenue Recognition - Stripe Revenue Recognition simplifies accrual accounting so you can close your books quickly and accurately.
RevenueCat - In-app subscriptions made easy
Baremetrics Cancellation Insights - Cancellation feedback w/ revenue reports & automated emails
RevenueStory - Subscription analytics built on top of your billing system
Revenual - Aggregated sales reports for app makers 💵
Apple - Available on iOS