If you implement subscriptions, use RevenueCat. It won't solve all your problems, but those that it solves it solves, period. The customer support is fantastic! Review collected by and hosted on G2.com.
Small parts of the SDK are confusing - the fact that entitlements not only have to exist but also be marked as active, for example. There's a bunch of features I wish they'd build - more graphs, for example for the number of new users. But overall RC is fantastic. Review collected by and hosted on G2.com.
