Devin records 2,549,346 monthly visits with +1% month-over-month growth and Paid pricing. TestDriver records 10,353 monthly visits with +7.1% growth and Free Trial, Paid, Contact for Pricing pricing.
Cognition's autonomous software engineer that ships real pull requests
AI code review that runs your app on every pull request
| Dimension / Metric | | |
|---|---|---|
| Official Domain | devin.ai | testdriver.ai |
| Pricing Model | Paid | Free Trial, Paid, Contact for Pricing |
| Monthly Visits | 2.55M (2,549,346) | 10.35K (10,353) |
| MoM Traffic Delta | +25.38K (+1%) | +688 (+7.1%) |
| Primary Market & Share | 🇺🇸 United States (28.1%) | 🇺🇸 United States (64.8%) |
| Direct Visits / mo | 1.39M | 4.09K |
| User Rating | 4.3 | 4.4 |
| Supported Platforms | website | Website |
Cognition's autonomous software engineer that ships real pull requests
Devin plans, writes code, runs tests, and opens pull requests across complex, multi-repository codebases without waiting for line-by-line approval.
Devin provisions Windows, Mac, and Linux VMs, builds and runs the project, and tests in a real browser - even recording itself using the feature it built.
Mention @Devin in a thread to delegate a fix, or connect CI, PagerDuty, and issue trackers so it reacts to failures and alerts automatically.
Delegate a large task and Devin splits it across parallel cloud agents that keep working after you close your laptop, then reports back.
AI code review that runs your app on every pull request
TestDriver reviews every pull request automatically, reads the diff with its vision agent, and generates end-to-end tests straight from the PR content to prove the new behavior works.
Tests run your actual application in a real desktop sandbox—clicking, typing and reading the screen—so they catch runtime and visual bugs, not just code diffs.
When the UI shifts and a cached element no longer matches, the AI finds it again, updates the cache and continues, so tests survive redesigns without rewrites.
Once a test passes, TestDriver opens a fresh pull request with the generated Vitest test code committed, so coverage lands in your repo alongside the change it protects.
An AI-native code editor providing advanced multi-file code generation and editing, though less fully autonomous end-to-end than Devin.
An AI-native code editor providing advanced multi-file code generation and editing, though less fully autonomous end-to-end than Devin.
SpecialistA general autonomous agent platform executing multi-step goals and browsers, suitable for broader web and coding workflows.
SpecialistA general autonomous agent platform executing multi-step goals and browsers, suitable for broader web and coding workflows.
Google's agentic development platform running parallel AI coding agents across an IDE and CLI workspace.
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SpecialistThe coding agent that learns your coding taste
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Free / Open-sourceRun many coding agents in parallel, each in its own worktree
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GenAI-native end-to-end QA agent that plans, writes and heals tests in plain language
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