Disclaimer: Ensure you are using legitimate versions of chess engines, as many "full" downloads are illegal hacks. Stick to reputable, free, or purchased versions to avoid security risks. If you'd like, I can:
You must possess the compiled UCI version of Houdini (usually compiled for ARM processors, common in Android devices). Install via GUI: Open DroidFish. Go to Menu > Options > Engines > Manage Engines > Install .
: To use a strong engine on Android, you must use a "Chess GUI" app that can load external UCI engines. Popular choices include Chessbase for Android Porting Limitations
The most common danger. Rogue APK files use the name "Houdini" as bait to get you to disable your Android security settings and install malicious software that steals data or serves intrusive ads.
If you want to set up the ultimate mobile analysis board, let me know: Which you are currently using on your phone?