I already uploaded my android app (written in Java) on Playstore, and now I want to upload it on Appstore as well. In order to save time, I decided to use a cross-platform, but I realized that I should have began to develop with Flutter since the beginning.

Is possible to start developing my app on Flutter even though it is already on Playstore? Or do I have to use another cross-platform like Kotlin multiplatform?

CodePudding user response：

For cross-platform you have to build a new app for the app store You have java code that does not directly compile in flutter but you can use your logic and architecture which you build earlier you have to build new app for app store

• But make sure you have to use your older package name and key store so you can override your java app(Live on play store) into a flutter app.

CodePudding user response：

yeah sure you can start with flutter, you need to clarify these things :

• package name should be the same as on Play Store.
• you have to choose your old key alias and passwords.