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Head-to-head · Game Boy Emulators

Gearboy vs Coffee GB

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Gearboy #2 in Game Boy Emulators 9.3/10 Free plan Free plan✓ 3 of 5 features Visit Gearboy
Coffee GB #4 in Game Boy Emulators 9.1/10 Open source ✓ 5 of 5 features Visit Coffee GB

Gearboy leads on 1 check, Coffee GB on 2, and 3 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGearboy · 9.3/10
  • Free planonly Gearboy
  • Most featuresCoffee GB · 5 of 5

Gearboy scores higher on our rubric for game boy emulators: 9.3 against 9.1 out of 10; our editors rank them #2 and #4.

Gearboy offers free plan; Coffee GB doesn't publish it. Coffee GB offers netplay; Gearboy doesn't publish it. Coffee GB offers real-time clock; Gearboy doesn't publish it.

Gearboy is the better fit for maximum platform coverage and debugging tools. Coffee GB is the better fit for cross-platform play with advanced hardware features.

  • Gearboy fits best

    Maximum platform coverage and debugging tools

  • Coffee GB fits best

    Cross-platform play with advanced hardware features

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature Gearboy 9.3/10 Visit ↗ Coffee GB 9.1/10 Visit ↗
At a glance
Editor score 9.3 9.1
Ranking #2 in Game Boy Emulators #4 in Game Boy Emulators
Best for Maximum platform coverage and debugging tools Cross-platform play with advanced hardware features
Pricing model Free Free
Starting price Not published Not published
Free plan ✓ (best) Not published
Free trial — —
Deployment Desktop, Mobile Desktop, Mobile
Platforms Windows, macOS, Linux, iOS, Android Windows, macOS, Linux, Android
Support Community, Docs Docs, Community
Built for Solo, Small business Solo, Small business
Features Gearboy 3/5 · Coffee GB 5/5
Save states ✓ ✓
Link cable emulation ✓ ✓
Netplay Not published ✓ (best)
Real-time clock Not published ✓ (best)
Controller support ✓ ✓
Specs
Supported systems Game Boy, Game Boy Color, Super Game Boy Game Boy (GB/DMG), Game Boy Color (GBC/CGB), Super Game Boy features
Supported platforms Windows, macOS, Linux, BSD, RetroArch/libretro, iOS, Android, Raspberry Pi, tvOS, webOS, PlayStation Vita, PlayStation 3, Nintendo 3DS, Nintendo GameCube, Nintendo Wii, Nintendo WiiU, Nintendo Switch, Emscripten, OpenDingux, RetroFW, QNX Windows, macOS, Linux, Android
Our review
Pros
  • Supports Game Boy, Color and Super Game Boy emulation
  • Includes local two-instance link-cable emulation and rewind
  • Adds breakpoints, disassembly, memory inspection and AI-assisted debugging
  • Supports Windows, macOS, Linux, and Android
  • Includes rollback netplay, save management, and rewind
  • Emulates Camera, Printer, rumble, tilt, and real-time clocks
Cons
  • Link-cable emulation is local two-instance rather than online play
  • Its focus is limited to the Game Boy family of systems
  • Advanced debugging features may exceed casual players’ needs
  • Focused on Game Boy, Game Boy Color, and Super Game Boy features
  • ROM files are not included
  • No iOS platform is listed
Our verdict

Gearboy is a free, open-source emulator for Game Boy, Game Boy Color and Super Game Boy software. It suits players who want broad platform access, save-state convenience and controller support, as well as technical users interested in…

Read the review →

Coffee GB is an open-source emulator for Game Boy, Game Boy Color, and Super Game Boy features. It is designed for players who want one application across Windows, macOS, Linux, and Android, with support for keyboard and game-controller…

Read the review →
  1. GearboyGame Boy Emulators 9.3Free plan
  2. Coffee GBGame Boy Emulators 9.1Open source

Strengths and trade-offs

  • Gearboy — where it wins

    • Supports Game Boy, Color and Super Game Boy emulation
    • Includes local two-instance link-cable emulation and rewind
    • Adds breakpoints, disassembly, memory inspection and AI-assisted debugging

    Where it doesn't

    • Link-cable emulation is local two-instance rather than online play
    • Its focus is limited to the Game Boy family of systems
    • Advanced debugging features may exceed casual players’ needs

  • Coffee GB — where it wins

    • Supports Windows, macOS, Linux, and Android
    • Includes rollback netplay, save management, and rewind
    • Emulates Camera, Printer, rumble, tilt, and real-time clocks

    Where it doesn't

    • Focused on Game Boy, Game Boy Color, and Super Game Boy features
    • ROM files are not included
    • No iOS platform is listed

More comparisons

All game boy emulators comparisons → · Full ranking →

Guides on game boy emulators

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update