Why there are two builds
FlyLM ships two APK builds because Android phones come in two processor flavors. The 64-bit build is made for modern phones and the 32-bit build keeps the game working on older devices. Both contain the exact same game: same 2019 content, same unlocked heroes, same features. The only difference is which phones can run them.
How to check your phone
The fastest check: if your phone was made in the last several years and runs Android 8 or newer, it is almost certainly 64-bit. To be sure, open Settings, go to About Phone, and look at the processor or Android version info, or check the kernel architecture with a free device info app. Phones with 2 GB of RAM or less and very old Android versions are the main candidates for the 32-bit build.
The 64-bit build
This is the default choice for nearly everyone. It matches the architecture of modern phones, which means smoother performance and fewer surprises. If you are unsure, start here. You can download the right build from the FlyLM APK, and both builds are also listed on the FlyLM APK download page.
The 32-bit build
The 32-bit build exists for old budget phones that cannot run 64-bit apps. If the 64-bit APK throws a Parse Error on install, that is your signal to switch to 32-bit. Gameplay is identical; you just get compatibility with legacy hardware. The install troubleshooting guide explains Parse Errors and every other install failure in detail.
Can you switch builds later?
Yes, but you must uninstall the old build first, since the two have different signatures and Android will not install one over the other. Your local progress will not carry over, so only switch if you need to. New players should follow the installation guide after picking their build.
What happens if you install the wrong one?
Nothing bad, it simply will not install. Android shows a Parse Error or App not installed message and moves on. Your phone is unharmed, no data is lost, and you can immediately try the other build. This is why it pays to check your architecture first using the steps above, but guessing wrong costs you nothing except a minute of download time.
Performance differences between builds
On a 64-bit phone, the 64-bit build runs noticeably smoother, especially in teamfights with lots of effects. The 32-bit build is a compatibility fallback, not a performance choice, so always prefer 64-bit when your phone supports it. Either way, FlyLM is light at around 95.3 MB and runs well even on modest hardware by modern standards.
