Frequently Asked Question
If your app has not been submitted for review, you can delete the app in draft state.
If your app has been approved and released to Google Play Store, you cannot delete the app. In this case, you can choose App Store > Pricing Service > Cancel Release. Then new users cannot search for and download your app in Google Play Store but users who have downloaded the app can use the app properly.
If your app has been released using an incorrect developer account, you can transfer the app to the correct account by referring to the operations at https://support.google.com/googleplay/android-developer/answer/6230247?hl=zh-Hans.