Searching for " GTA 5 PPSSPP 24MB" reveals a common myth in the mobile gaming community. While high-compression technology exists, , and the actual game files are roughly 120GB.
If you want a high-quality GTA experience on your phone, consider these official ports:
Available via the Netflix Games app.
Download the highly compressed ISO/CSO file from a trusted community source.
Originally for PSP, this runs perfectly on the PPSSPP emulator and offers a similar vibe to the newer titles.
A classic open-world experience native to mobile.
Use an app like ZArchiver to extract the .7z or .zip file. A 24MB file will usually expand to about 500MB–1GB after extraction.