How to improve the success of uploading exclusive app?

Exclusive app is the app not published on Google Play.

If you want upload an exclusive app on HappyMod App. You can open the HappyMod App. Click the Plus sign at bottom right. Click Upload APK. Then click 'Exclusive App'. You need to fill in the information about the Exclusive App you will upload. The language is better to be English. Please fill in the information carefully, otherwise it will be rejected.

There are many reasons why the exclusive app uploaded by the users is rejected.One main reason is that many users do not fill in right information about the exclusive app according the upload requirements of HappyMod App.The second main reason is that the app you upload has been pulished on Google Play. The last main reason is that the app you upload has been pulished on HappyMod App.