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Head-to-head · Game Testing Software

AltTester vs Airtest Project

  • Updated Nov 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score AltTester #3 in Game Testing Software 8.8/10 Free plan · 30-day trial Free planFree trial✓ 1 of 3 features Visit AltTester
Airtest Project #5 in Game Testing Software 8.4/10 Free plan Free plan✓ 1 of 3 features Try Airtest Project

AltTester leads on 0 checks, Airtest Project on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAltTester · 8.8/10
  • Free planboth
  • Free trialonly AltTester

AltTester scores higher on our rubric for game testing software: 8.8 against 8.4 out of 10; our editors rank them #3 and #5.

On test environments, AltTester gives you Hybrid where Airtest Project offers Local.

AltTester is the better fit for unity and Unreal teams needing device-based automation. Airtest Project is the better fit for free open-source mobile and desktop automation.

  • AltTester fits best

    Unity and Unreal teams needing device-based automation

  • Airtest Project fits best

    Free open-source mobile and desktop automation

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Side by side

Feature AltTester 8.8/10 Visit ↗ Airtest Project 8.4/10 Visit ↗
At a glance
Editor score 8.8 8.4
Ranking #3 in Game Testing Software #5 in Game Testing Software
Best for Unity and Unreal teams needing device-based automation Free open-source mobile and desktop automation
Pricing model Free plan + paid Free
Starting price — Free plan
Free plan ✓ ✓
Free trial 30 days —
Deployment Desktop Desktop
Platforms Windows, macOS, Linux Windows, macOS, Linux, iOS, Android
Support Email, Community, Docs Email, Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features AltTester 1/3 · Airtest Project 1/3
Automated test execution ✓ ✓
Playtesting workflows — Not checked yet
Performance monitoring — Not checked yet
Specs
Test environments Hybrid Local
Supported game engines Unity, Unreal Engine Unity3D, Cocos2D
Target platforms PC, Mac, Windows, Android, iOS, WebGL, Nintendo Switch Android, iOS, Windows
Our review
Pros
  • Inspect game-object hierarchies and record scripts from interactions
  • Write tests in C#, Python, Java, or Robot Framework
  • Run tests concurrently and connect to device-cloud services
  • Free and open source for Android, iOS, and Windows testing
  • Combines image recognition with Poco UI-hierarchy inspection
  • Includes recording, HTML reports, CLI execution, and multi-device runs
Cons
  • AltTester Lite is free only for eligible studios
  • Lite limits users to one connection and GUI mode
  • Nintendo Switch support is an add-on for customized Pro subscriptions
  • Documented game-engine coverage centers on Unity3D and Cocos2D
  • Category test environments are local rather than broader hosted environments
  • Its strongest fit is functional and compatibility automation, not broad engine coverage
Our verdict

AltTester is a UI test automation toolkit for teams building games and 3D applications with Unity or Unreal. It instruments an application so testers can inspect game-object hierarchies and properties, interact with the interface, record…

Read the review →

Airtest Project is an open-source UI automation framework for games and apps, maintained by NetEase. It is aimed at developers and QA teams automating functional and compatibility tests across Android, iOS, Windows, and desktop…

Read the review →
  1. AltTesterGame Testing Software 8.8Free plan · 30-day trial
  2. Airtest ProjectGame Testing Software 8.4Free plan

Strengths and trade-offs

  • AltTester — where it wins

    • Inspect game-object hierarchies and record scripts from interactions
    • Write tests in C#, Python, Java, or Robot Framework
    • Run tests concurrently and connect to device-cloud services

    Where it doesn't

    • AltTester Lite is free only for eligible studios
    • Lite limits users to one connection and GUI mode
    • Nintendo Switch support is an add-on for customized Pro subscriptions

  • Airtest Project — where it wins

    • Free and open source for Android, iOS, and Windows testing
    • Combines image recognition with Poco UI-hierarchy inspection
    • Includes recording, HTML reports, CLI execution, and multi-device runs

    Where it doesn't

    • Documented game-engine coverage centers on Unity3D and Cocos2D
    • Category test environments are local rather than broader hosted environments
    • Its strongest fit is functional and compatibility automation, not broad engine coverage

More comparisons

All game testing software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update