Percy vs Devin
Percy and Devin are two popular AI coding tools that developers frequently compare. Percy uses a freemium model starting at Free, while Devin is paid from $500/mo. Percy offers a free tier, while Devin does not. Below we break down features, pricing, strengths, and weaknesses to help you decide which tool fits your workflow best.
Last updated: March 2026
Quick Verdict
Choose Percy if you want automated visual testing to catch ui regressions in every pr.. Percy's biggest strengths include catches visual regressions that unit tests miss and excellent cross-browser testing coverage. Plus, it has a free tier to get started. Choose Devin if you prefer the world's first fully autonomous ai software engineer.. Key advantages include most autonomous ai coding agent available and can handle end-to-end tasks without hand-holding.
Automated visual testing to catch UI regressions in every PR.
| Percy | Devin | |
|---|---|---|
| Pricing | Free | $500/mo |
| Free Tier | Yes | No |
| Pricing Model | Freemium | Paid |
| Rating | ★ 4.2 | ★ 4.2 |
| Categories | Code Review & Testing | AI Agents |
| Key Features | 6 features | 5 features |
| Feature | Percy | Devin |
|---|---|---|
| Automated visual regression testing | ✓ | — |
| Cross-browser screenshot comparison | ✓ | — |
| Responsive design testing across screen sizes | ✓ | — |
| GitHub and GitLab PR integration | ✓ | — |
| Approval workflows for visual changes | ✓ | — |
| Integration with Cypress, Playwright, and Storybook | ✓ | — |
| Fully autonomous coding from task description to deployment | — | ✓ |
| Sets up its own dev environment and toolchain | — | ✓ |
| Plans, codes, debugs, and tests independently | — | ✓ |
| Handles complex multi-step engineering tasks | — | ✓ |
| Slack integration for task assignment and updates | — | ✓ |
Percy
Pros
- + Catches visual regressions that unit tests miss
- + Excellent cross-browser testing coverage
- + Good integration with popular testing frameworks
- + Approval workflow makes review process clear
Cons
- − Free tier limited to a small number of screenshots
- − Can produce false positives from dynamic content
- − Pricing scales with screenshot volume
Devin
Pros
- + Most autonomous AI coding agent available
- + Can handle end-to-end tasks without hand-holding
- + Great for repetitive or well-defined engineering tasks
Cons
- − Very expensive at $500/mo for teams
- − Output quality varies on complex or ambiguous tasks
- − Limited transparency into decision-making process
The Bottom Line
Choose Percy if: you want automated visual testing to catch ui regressions in every pr.. It has a free tier to get started, which Devin lacks. It's completely free to use. Keep in mind: free tier limited to a small number of screenshots.
Choose Devin if: you prefer the world's first fully autonomous ai software engineer.. Keep in mind: very expensive at $500/mo for teams.
