Gamma vs QuackStation

Gamma is a PlayStation 1 emulator for iOS, iPadOS, and macOS. It supports touch and gamepad controls, save states, screenshots, game importing, and games that span multiple discs. For 3D games, the App Store listing describes enhanced resolution up to 8× and widescreen options. Supported disc images include BIN/CUE, CHD, PBP, ISO, and MDS; archive formats include 7zip, ZIP, RAR, and ECM. Cheat support and RetroAchievements are also listed. Optional Gamma Sync can connect Google Drive or Dropbox to store and retrieve selected emulator data. Games, BIOS files, memory cards, save states, and controller skins normally remain on the device unless a selected feature transmits them, such as Sync or a community submission. Gamma does not include commercial PlayStation games or proprietary PlayStation BIOS files, so users are responsible for using content they have a legal right to use. It is free to download and use, though the free version may show advertising through Appodeal and its partners. Gamma Pro – Remove Ads is listed for $4.99.

QuackStation is a free PlayStation 1 emulator with a Qt front end and a fullscreen interface for TV use. Its project goals include playability, speed, long-term maintainability, and performance suitable for low-end devices. It supports hardware rendering through D3D11, D3D12, OpenGL, Vulkan, and Metal, as well as software rendering. Hardware graphics options include upscaling, texture filtering, 24-bit true colour, and PGXP geometry precision and texture correction. Playback features include save states, runahead, rewind, fast boot, CPU overclocking, and time-stretched audio. Games can load from CDs and formats including BIN/CUE, raw BIN/IMG, MAME CHD, ECM, MDS/MDF, and unencrypted PBP. It supports digital and analog controllers, lightguns simulated with a mouse, NeGcon, and multitap for up to eight devices. A PS1 or PS2 BIOS ROM image is required and is not included; users must dump it from their own console. The project is licensed under GNU GPLv3 or later. Android is currently unmaintained and unsupported.