Offer publishers a subscription-lifecycle audit covering trial enrollment, renewal, entitlement activation, credit allocation, ad removal, account restoration, cancellation, and refunds. Test real purchase paths across devices and account states, trace failures through billing and support records, and deliver prioritized fixes with reproducible evidence. The service can expand into recurring release testing and managed monitoring after the initial audit.

AI app publishers are experimenting with weekly, monthly, annual, credit-based, and trial pricing while users face growing subscription fatigue. That complexity increases the number and cost of billing edge cases precisely when app-store trust and retention matter most.