: Indicates this is the 575th "commit" (update) made to the code since the v1.14.4 release.
: Refers to EmuCR , a website that frequently compiles and hosts "bleeding edge" builds of emulators directly from their source code. EmuCR-ppsspp-v1.14.4-575-g86a19cebf-android.apk
In short, this is a of PPSSPP, which includes the latest experimental features and bug fixes that haven't been released in the official Google Play Store version yet. : Indicates this is the 575th "commit" (update)