Percy vs Applitools: pixel diffs vs Visual AI
The core split is how they decide something changed. Percy compares pixels; Applitools uses Visual AI to judge changes more like a human. That difference drives everything else — false positives, cost and who each tool is really for.
Choose by how noisy your UI is and how much you'll spend:
- Noisy, dynamic UIs at scale → Applitools — Visual AI cuts false positives across big browser matrices.
- Simpler pages, easy to start → Percy — pixel diffs with a mature review UI and a free tier.
- Visual checks without a separate SaaS bill → Buddy — visual regression as a pipeline action.
Side by side
Percy vs Applitools, at a glance
| Dimension | Percy | Applitools Eyes | Buddy |
|---|---|---|---|
| Diff engine | Pixel-by-pixel | Visual AI | Pixel diff + tolerance |
| False positives | Higher on dynamic UIs | Lower (AI-filtered) | Tunable tolerance + exclusions |
| Best for | Simpler pages, quick start | Enterprise scale, noisy UIs | Visual checks inside CI/CD |
| Free tier | 5,000 screenshots/mo | ~100 checkpoints/mo | Free plan (€0) |
| Paid pricing | not published | custom / checkpoint-based | Included in plan |
| Public pricing | ✗ | ✗ | ✓ |
Compiled July 2026 from vendor pages and aggregated contract data. Pricing changes often — verify current terms.
Official pages: Percy · Applitools · Buddy visual tests
Where Applitools wins. Its Visual AI compares screenshots the way a person would — ignoring anti-aliasing, sub-pixel shifts and rendering noise while flagging changes that actually matter. Across a large matrix of browsers and viewports, that dramatically cuts the false positives that make pixel tools tiresome, which is why enterprise QA teams reach for it. The cost is real: pricing is checkpoint-based, not published, and quickly climbs into four figures a month.
Where Percy wins. Percy is easier to adopt and reason about. Pixel diffing is predictable, the review workflow is mature, and the free tier (5,000 screenshots/month) lets small teams start immediately. For relatively static UIs the false-positive gap narrows, so the simpler model is often enough.
Where a pipeline-native check fits. Both are separate vendors. If you mainly want to stop visual regressions reaching production without adding another dashboard and bill, Buddy runs a visual-diff action inside your pipeline: it compares the deployed site to the previous version, lets you set pixel tolerance and exclude dynamic regions to control noise, and pauses for approval. It's not AI-driven diffing, but it keeps visual checks in the same place you already build and deploy.
Common questions
Percy vs Applitools — common questions
What is the difference between Percy and Applitools?
Percy compares screenshots pixel-by-pixel, which is simple but flags harmless rendering differences as regressions. Applitools Eyes uses Visual AI to compare more like a human, ignoring sub-pixel noise and focusing on meaningful changes, which reduces false positives across large browser and viewport matrices. Applitools is aimed at enterprise scale; Percy is simpler to start with.
Is Applitools more accurate than Percy?
For noisy UIs with dynamic content, animations or variable font rendering, Applitools' Visual AI typically produces fewer false positives than Percy's pixel-by-pixel diffing. For simple, static pages the difference is smaller and Percy's approach is easier to reason about.
How much does Applitools cost compared to Percy?
Neither publishes transparent pricing. Applitools is checkpoint-based with a small free tier (about 100 checkpoints/month); mid-market usage is commonly reported in the $1,500–$3,000/month range. Percy has a free tier of 5,000 screenshots/month, with paid pricing available only via BrowserStack sales or in-product.