The "GTA 5 APK OBB" download you are seeing is not an official Rockstar Games release and is likely a scam or malware. There is currently no official version of Grand Theft Auto V for Android or iOS devices. Reality Check: The 378 GB "Update"
Hardware Limits: Most mobile devices lack the dedicated GPU and cooling systems required to run a massive open-world title like GTA 5 natively.
Conclusion
While tech-savvy users have achieved impressive feats—such as modders compressing GTA 5 to under 2.5 GB or running "Lite" versions via emulators—these are not official, polished releases. How to Actually Play GTA 5 on Mobile (2026)
The Verdict: The "378 GB" tag is almost certainly a marketing gimmick used by shady websites to get clicks. They know gamers want the "ultimate" version, so they invent a file size that sounds impossibly massive to imply quality. In reality, downloading a file that large on mobile is currently impractical for 99% of users, and technically unnecessary.