DuckStation - Android
DuckStation is an simulator/emulator of the Sony PlayStation(TM) / PSX / PS1 console, focusing on playability, speed, and long-term maintainability. The goal is to be as accurate as possible while maintaining high performance.
A "BIOS" ROM image is required to start the emulator and to play games. A ROM image is not provided with the emulator for legal reasons, you should dump this from your own console using Caetla or other means. These are usually dumped as "scphNNNN.bin" or "ps-NNN.bin", where NNNN is the model number or ROM version, and should be 512KB in size. Games are NOT provided with the emulator, it can only be used to play legally purchased and dumped games.
DuckStation supports cue, iso, img, ecm, mds, chd, and unencrypted PBP game images. If your games are in other formats, you will need to convert or re-dump them. For single track games in bin format, you can use https://www.duckstation.org/cue-maker/ to generate cue files.
* OpenGL, Vulkan (recommended) and software rendering
* Upscaling, texture filtering, and true colour (24-bit) in hardware renderers
* Widescreen rendering in supported games (no stretching!)
* PGXP for geometry precision, texture correction, and depth buffer emulation (fixes texture "wobble"/polygon fighting)
* Adaptive downsampling filter
* 60fps in PAL games where supported
* Per-game settings (set enhancements and controller mapping for each game individually)
* Up to 8 controllers in supported game with multitap
* Controller and keyboard binding (+vibration for controllers)
* RetroAchievements in supported games (https://retroachievements.org)
* Memory card editor (move saves, import gme/mcr/mc/mcd)
* Built in patch code database
* Save states with preview screenshots
* Blazing fast turbo speeds in mid to high end devices
* Emulated CPU overclocking to improve FPS in games
* Rewinding (do not use on slow devices)
* Controller layout editing and scaling (in pause menu)
I can only find this file as a .XAPK. To install this you will need an app called ZArchiver. You will also have to rename the file and remove the .APK extension (not sure why it is being added when downloading on Android devices).
It will be much simpler to just click the Google Play link and download from there.