TestMu AI is the #17 ranked design app on Slack, priced included with service subscription, as of Sep 11, 2026.
AppRanks data: TestMu AI ranks #17 in Design on Slack Marketplace, placing it in the top 26% of that category.
AppRanks verdict
Generated from live marketplace data — refreshed daily
TestMu AI is a newly-listed Slack app with a limited review volume. It is listed in the Design category on Slack Marketplace, which AppRanks treats as the canonical taxonomy node for ranking and competitor comparison. no published reviews yet means feature claims are unverified by the wider merchant base. Without a published review base, the only fit-signal available is the developer's own documentation plus the marketplace's listing-quality audit (linked below). Paid-only pricing means evaluating fit on the marketplace listing or via the developer's documentation before installing. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical Slack Marketplace listing.
Pros
- No standout positives based on current data signals.
Cons
- −No public reviews yet — fit and reliability are unverified
- −Paid-only pricing (Included with service subscription) — evaluation requires committing payment details
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See TestMu AI's alternatives ranked by audit score, rating, and review velocity.
About TestMu AI
How TestMu AI works
With TestMu AI (formerly LambdaTest) app for Slack you can run Automated screenshot tests of your URLs on 2000+ different desktop and mobile browsers directly from Slack channel. Just a simple slash command and you get full-paged screenshot of your page taken on real cloud hosted machines running real operating systems and real browsers. Here's how to use Slash command /screenshot [URL] [Optional ListNumber] In addition you can also collaborate with your teammates by sharing issues from TestMu AI sessions to Slack in real time. While performing a test session, with a single click, you can instantly push issues to individuals or channels in Slack! Issues pushed to Slack will capture screenshots along with test information such as Project Name, Test Environment, Summary, Issue Type as well as Severity. Sign Up Now !!
Screenshots
Category rankings
As of Sep 17, 2026- Design#17of 67Top 26%
- Developer Tools#140of 540Top 26%
- Productivity#334of 600Top 56%
See 90-day rank history for each category
Track daily rank changes, category shifts, and position volatility.
Competitors & alternatives
TestMu AI doesn't have curated competitor matchups yet. Other tracked design apps on Slack:
Where TestMu AI stands in the Design category
TestMu AI ranks #17 of 67 apps in the Design category, placing it in the top 26% of the listing.
Frequently asked questions
What is TestMu AI?
TestMu AI is an app for Slack. It is published on Slack Marketplace and tracked by AppRanks, and AppRanks has been tracking its public marketplace data on the refresh cadence published in our methodology. It is listed under the Design category on AppRanks, where you can see its current category position, review-velocity trend, and how it compares against the top alternatives in the same space.
Who uses TestMu AI?
TestMu AI is actively installed across Slack stores tracked by AppRanks. Its review base is still building, which usually maps to early-stage merchants and stores piloting a new workflow. It is part of the Design category on Slack.
Where does TestMu AI rank on Slack?
TestMu AI currently sits at position #17 in the Design category on Slack. That places it in the top 25% of 67 apps tracked in the same category. Category positions are read from the live marketplace ranking and refresh on each scrape, so the number you see here reflects the most recent crawl rather than a long-running average.