Google Play Store Review Reply limit: 350 characters, iOS App Store Reply Limit: 5970 characters
Pontifications
- Google Play Store and iOS App Store Review reply limits of 350 and 5970 are not documented anywhere official by Google and Apple?!?
- From How to reply to iOS App Store Reviews (with Screenshots)
- And I see mentions of 350 for Google Play (which I know from personal experience) and 5000 for iOS App Stores on AppFollow 3.3: January Edition .