altom.com

What It Is

Altom is a software testing company founded in Cluj-Napoca, Romania, with services spanning testing, training, and tools. Its developer tool AltTester is designed for UI automation testing of Unity and Unreal applications. The core approach is to instrument the application so that test code can access and control engine objects. Compared with solutions based only on images or coordinates, it is better suited to games, simulations, interactive 3D apps, and other scenarios with complex object hierarchies.

Core Capabilities and Ecosystem

AltTester Unity SDK is explicitly positioned as a free, open-source asset, providing APIs such as AltDriver, object lookup, input actions, scene control, screenshots, reading and writing component properties, PlayerPrefs, and notifications. AltTester Unreal SDK is described as a free tool for instrumented testing of Unreal applications. AltTester Desktop can inspect object hierarchies and interact with applications outside the Unity Editor. The documentation also shows integrations with Appium for Android/iOS testing and Selenium for WebGL testing, as well as support across ecosystems including BrowserStack, SauceLabs, AWS Device Farm, BitBar, GitHub Actions, Allure, NUnit, Pytest, Java, C#, and Python.

Pricing and Documentation

The available content only confirms that the Unity SDK is free and open source, and that the Unreal SDK is free. Pricing for Desktop, training, consulting, or enterprise support is not disclosed. The documentation quality is strong, with coverage of getting started guides, APIs, CI, device clouds, command-line usage, multi-device connections, safe mode, upgrade guides, FAQs, known issues, and the contribution process. Multiple historical versions are also available, making it practical for engineering teams to adopt.

Pros and Cons

The strengths are its very clear positioning, focused specifically on Unity/Unreal UI automation; the open-source Unity SDK lowers the barrier to evaluation; and its integrations with device clouds and CI are fairly complete. The downsides are that instrumentation is required, which adds complexity to build and release workflows; the documentation lists known issues involving WebGL, BlueStacks, IL2CPP, BrowserStack iOS, and other areas; and it explicitly states that AltTester does not support proxy configuration, so teams operating in complex network environments should evaluate it carefully.

Who It Is For and Access from China

It is suitable for game QA teams, tooling teams, and CI teams with Unity/Unreal automated regression testing needs. It is less suitable for ordinary web, desktop, or non-engine applications. Access from China cannot be determined from the available content and is marked as unknown. If access to GitHub, device clouds, or overseas package repositories is unstable, alternatives or complementary options such as Appium, Selenium, Unity Test Framework, Airtest/Poco, and GameDriver may be worth evaluating.