A free program for Android, by Treaxyt.
EPSX EMU – Emulator FREE is a popular application that allows you to use your Android smartphone or tablet as an extra-powerful gaming device. It can be used to play games that were developed for the PlayStation game system, as well as games that were developed for the PlayStation one.
The application was created with the intention of improving the user experience, as it provides a more intuitive and user-friendly interface than the original hardware. It can also be used to save the state of the game and restore it at any time.
This is an Android app, so if you want to use it, you will need to install the Android SDK. You can download it from the Google Play Store.