OpenEmu vs Casso

OpenEmu7.9Visit CCasso7.9Visit

OpenEmu #1 in Apple II Emulators 7.9/10 Free plan Free plan✓ 0 of 3 features Visit OpenEmu

vs

C Casso #8 in Apple II Emulators 7.9/10 Free plan Free plan✓ 1 of 3 features Visit Casso

• OpenEmu fits best

  Mac users organizing games across multiple systems

• Casso fits best

  Windows users wanting hardware and cassette emulation

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 ↗	CCasso 7.9/10 Visit ↗
At a glance
Editor score	7.9	7.9
Ranking	#1 in Apple II Emulators	#8 in Apple II Emulators
Best for	Mac users organizing games across multiple systems	Windows users wanting hardware and cassette emulation
Pricing model	Free	Free
Starting price	Free plan	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	macOS	Windows
Built for	Solo, Small business	Solo, Small business
Features OpenEmu 0/3 · Casso 1/3
Built-in debugger	Not checked yet	Not checked yet
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	Windows
Disk image formats	Not checked yet	WOZ, DSK, DO, PO, NIB, NB2
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 five Apple II models and supports six disk-image formats Loads and saves cassette audio, including WAV, AIFF, MP3, and FLAC input Adds Mockingboard, printer, network card, and controller emulation
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	Runs on Windows only Peripheral and media support may be more than users seeking a simple emulator need Does not offer AI features
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 →	Casso brings several Apple II models together in a Windows desktop application, alongside an assembler and disk manager. It is aimed at people who want more than a basic emulator: it covers Apple ][, ][+, //e, //e Enhanced, and //c, and… Read the review →

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

• Casso — where it wins

  • Emulates five Apple II models and supports six disk-image formats
  • Loads and saves cassette audio, including WAV, AIFF, MP3, and FLAC input
  • Adds Mockingboard, printer, network card, and controller emulation

  Where it doesn't

  • Runs on Windows only
  • Peripheral and media support may be more than users seeking a simple emulator need
  • Does not offer AI features

• OpenEmu7.9/10 · Free plan

  A polished Mac library for classic games, but not a dedicated Apple II emulator.

  Visit OpenEmuFull verdict →
• CCasso7.9/10 · Free plan

  A free Windows emulator with broad Apple II model, disk, cassette, and peripheral support.

  Visit CassoFull verdict →