Always prefer the (currently on sale often for $6.99 USD). If you want mods, use mod loaders that work with the official OBB, not pre-packaged custom OBBs from shady sites.
If you’re manually installing the game (not from Play Store), the OBB needs to be placed in Android/obb/com.rockstargames.gtasa/ . In version 2.10, the file size is around 2.5GB. Once installed correctly, the game launches without errors. However, be aware – downloading OBB files from third-party sites is risky. Many are outdated, corrupted, or packed with malware. Always verify file integrity and use trusted sources. gta sa android obb 2.10