Play! is a portable PlayStation2 emulator. The focus of the project is on making PlayStation2 emulation easy and accessible.

Here's changelog for latest dev-build, released Jan 06, 2021:
+Add an explanation for the delay thing.
+ Save/load new member state.
+ Change how we report FIFO contents when FDR is on.
+ Update Framework submodule.
+ Code style fixes.

Official Site
Grab files from emulator website
Here are older files for:
Android, iOS, Linux, macOS and Windows.