There are generally 2 reasons an app might not run properly on iodéOS:
- the lack of Google Play Services, which are partially replaced by microG services. Unfortunately not all services are fully implemented in microG, causing some apps to dysfunction;
- the iodé adblocker may be too restrictive and as a result block a recipient necessary for the app to function. To check if the adblocker is responsible, unblock the app from the iodé interface (settings -> blocking selection), select the app, remove all blockings and then relaunch the app.
In certain cases and for various reasons (issues in the data & preference storage, system freezing,…) an app might start being dysfunctional after a while & systematically stops running while opening it. Try in this case to uninstall and reinstall it or directly clear its storage (Settings -> Apps -> ‘app’ -> Storage and cache -> Clear storage), and relaunch it.
If all mehtods written aboe don’t work, you can alternatively use the web version of the app / service you use from a browser instead of using the native app.
You will find a non-exhaustive community list of the concerned apps here. Keep in mind that an app may start or stop running properly anytime on iodéOS for different reasons, meaning this list may be out of date.