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TestMu AI vs LT Browser: catalog facts
TestMu AI	LT Browser
Freemium Free to start, with paid plans for more testing capacity.	Freemium Free to download, with paid tiers as part of the TestMu AI platform.
Web, Command line	Windows, macOS, Linux
Online Selenium grid with documentation for many test frameworks CI and team integrations including Jenkins, GitHub and Slack	Views several device viewports side by side More than 50 device screen presets
Cloud service that needs an account and a connection Recent focus on AI agents may add features individual testers do not need	Device views are emulated rather than real hardware Tied to a commercial testing platform with paid tiers
Web application, Hosted service	Downloadable app
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.