| ▲ | scripturial 2 days ago |
| In google play the purchaser information is mostly privatized and hidden from the developer. I assume Amazon is the same. The only way a developer would know a person is an existing user is if they have a user sign up process inside the app itself. |
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| ▲ | snotrockets 2 days ago | parent [-] |
| Using android.content.SharedPreferences, set one singaling the user purchased a license from the Amazon copy of the app, read it from the Google Play app. It is doable, the main issues is:
1. Getting users to redownload the app from the Play store
2. Maintaining this registration transfer mechanism |
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| ▲ | axus a day ago | parent [-] | | I think issue #1 is a big one, how to download a paid app without paying for it? Not everything is freemium. Shattered Pixel Dungeon was a good example of me paying on one platform, and then applying the upgrade to the free app after downloading on another. | | |
| ▲ | dylan604 a day ago | parent [-] | | That's on the dev of the app. They should absolutely have the ability to see that you download the app, and allow full access again. This isn't any different from a user switching to a new device and having to download apps again. Not everyone restores from backup and prefers clean installs. Downloading an app again should not be the point of friction |
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