It takes months to implement in-app purchases for Unity even with a native solution.
That requires you to write a server and ETL for subscription and purchases data.
Adapty Unity SDK is a native wrapper around Adapty iOS SDK and Adapty Android SDK.
Both SDKs written in pure Swift/Kotlin and support iOS 9+, Android 4.1+ which fit for 99.9% users all wrapped into C# lib.
5 SDK methods are all you need to deploy IAPs and get subscription data from Apple and Google without coding.
It takes only a couple of hours for a junior developer to implement IAPs with Adapty Flutter Plugin
Make a purchase with receipt verification with a single method. Apple Promotion Offer supported right out of the box.
Restore purchases when a user re-install the app.
Link transaction to a user ID in your system.
Set any number of custom user attributes and set a separate IDs for each analytics/attribution services.
Link a user with transactions to an attribution such as ad source, campaign, ad, creative. AppsFlyer, Adjust, Branch, and Apple Seach Ads supported.
After installing SDK, Adapty collects users' transactions events and then:
1. Forward it to 3rd party services
2. Aggregate to Subscription Analytics
With SDK installation Price A/B testing for paywalls is unlocked as well as Win Back Campaigns.