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Head-to-head · Apple II Emulators

OpenEmu vs GSSquared

  • Updated Nov 2026
  • Both researched from official sources
  • 3 checks side by side
OpenEmu #1 in Apple II Emulators 7.9/10 Free plan Free plan✓ 0 of 3 features Visit OpenEmu
GSSquared #7 in Apple II Emulators 7.9/10 Free plan Free plan✓ 2 of 3 features Visit GSSquared

OpenEmu leads on 0 checks, GSSquared on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Free planboth
  • Most featuresGSSquared · 2 of 3

OpenEmu and GSSquared score identically on our rubric (7.9 out of 10) for apple ii emulators; OpenEmu sits at #1 and GSSquared at #7 in our editorial ranking, so the choice comes down to fit.

OpenEmu is the better fit for mac users organizing games across multiple systems. GSSquared is the better fit for users wanting broad Apple II and IIgs coverage.

  • OpenEmu fits best

    Mac users organizing games across multiple systems

  • GSSquared fits best

    Users wanting broad Apple II and IIgs coverage

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature OpenEmu 7.9/10 Visit ↗ GSSquared 7.9/10 Visit ↗
At a glance
Editor score 7.9 7.9
Ranking #1 in Apple II Emulators #7 in Apple II Emulators
Best for Mac users organizing games across multiple systems Users wanting broad Apple II and IIgs coverage
Pricing model Free Free plan + paid
Starting price Free plan $40 one-time
Free plan ✓ ✓
Free trial — —
Deployment Desktop Cloud, Desktop, Browser extension
Platforms macOS Web, Windows, macOS, Linux
Support Community, Docs Community, Docs
Built for Solo, Small business Solo
Features OpenEmu 0/3 · GSSquared 2/3
Built-in debugger Not checked yet ✓ (best)
Save states Not checked yet Not checked yet
Joystick support Not checked yet ✓ (best)
Specs
Apple II model coverage Not checked yet Multi-model
Host platform Not checked yet Cross-platform
Disk image formats Not checked yet .do, .po, .dsk, .nib, .2mg, .woz 1.0, .woz 2.0, .hdv, .img, .hda, .iso, .pmap
Our review
Pros
  • Unified library with automatic organization, box art, and custom collections
  • USB and Bluetooth controller support with automatic mapping
  • Save states, rewind, screenshots, and configurable multi-pass shaders
  • Emulates Apple II, Apple II+, Apple IIe variants, and Apple IIgs systems
  • Loads a wide range of disk images and supports SmartPort storage
  • Desktop builds include an integrated debugger for CPU, memory, video, and devices
Cons
  • Runs only on macOS and deploys as a desktop application
  • No netplay support for multiplayer sessions over a network
  • Latest listed release is Intel-only and needs Rosetta 2 on Apple Silicon
  • The integrated debugger is available only on desktop builds
  • Gamepad support may not suit users who need other input options
  • The $40 shareware contribution is suggested, so it does not buy a separate paid tier
Our verdict

OpenEmu is an open-source desktop application for macOS that emulates games from 31 classic console, handheld, and related systems. It is aimed at Mac users who want one library for ROM backups rather than separate emulator interfaces. The…

Read the review →

GSSquared is an emulator for the Apple II family, spanning Apple II, Apple II+, Apple IIe variants, and Apple IIgs systems. It is aimed at people who want to run classic Apple II software on current computers, with desktop versions for…

Read the review →
  1. OpenEmuApple II Emulators 7.9Free plan
  2. GSSquaredApple II Emulators 7.9Free plan

Strengths and trade-offs

  • OpenEmu — where it wins

    • Unified library with automatic organization, box art, and custom collections
    • USB and Bluetooth controller support with automatic mapping
    • Save states, rewind, screenshots, and configurable multi-pass shaders

    Where it doesn't

    • Runs only on macOS and deploys as a desktop application
    • No netplay support for multiplayer sessions over a network
    • Latest listed release is Intel-only and needs Rosetta 2 on Apple Silicon

  • GSSquared — where it wins

    • Emulates Apple II, Apple II+, Apple IIe variants, and Apple IIgs systems
    • Loads a wide range of disk images and supports SmartPort storage
    • Desktop builds include an integrated debugger for CPU, memory, video, and devices

    Where it doesn't

    • The integrated debugger is available only on desktop builds
    • Gamepad support may not suit users who need other input options
    • The $40 shareware contribution is suggested, so it does not buy a separate paid tier

More comparisons

All apple II emulators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update