It is rarely a simple case of "you didn't buy it." The error is often a false positive caused by the complex environment of Android system modification.
Note: Simply disabling it via a package disabler is usually insufficient; it must be uninstalled through these official settings. Telegram Messenger Additional Troubleshooting Steps hex installer apk license error
Restart your device and open the Play Store first to ensure it's logged in and synced. It is rarely a simple case of "you didn't buy it
This is the most common cause. Samsung updates the SecThemeInstaller and other system jars with every security patch. Hex Installer works by patching these system files. If Samsung changes the code structure in a One UI update, Hex’s patching method becomes obsolete. This is the most common cause
A unique quirk of Samsung devices is that having active can sometimes "ghost" the app's license. Some users have found that uninstalling Hex from both the main profile and the Secure Folder, then reinstalling it only on the main profile, resolves persistent license loops.