While the core app might be free to download, the advanced features usually sit behind a paywall or require a license check to ensure you have purchased the "Pro" or "Full" version.
include the copyrighted game data (PAK or PK3 files). You must copy your own files from a legal PC copy (like from Steam or GOG) to the /OpenTouch/Quad/ folder on your device. Launch & Play: Quad Touch Apk No License
If you are having trouble with a on a version you actually bought, I can help you troubleshoot the Google Play cache or account sync issues. How to fix license verification errors for a purchased app? Which Quake mods are compatible with the engine? While the core app might be free to
The official version of Quad Touch works on a "Base App + License Key" system. Launch & Play: If you are having trouble