Overview
What The Diff is a code tool that ai code review summaries. It's built for small teams who want results without stitching together five separate apps. Compared to other code options in our directory, What The Diff stands out for an unusually generous free tier, and its freemium model ($19/mo) keeps it within reach for most workflows. Real users have left 320 reviews averaging 4.4 out of 5, which puts it firmly in the upper tier of tools we track.
Key features
- Repo-wide search and grounding
- Terminal command suggestions
- Pull request reviews and summaries
- Autocomplete that learns your codebase
Use cases
- Designers prototype interactive UIs without deep frontend skills.
- Senior engineers use it for boilerplate and test scaffolding.
Pros
- Pricing scales with use, not headcount
- Predictable monthly billing
Cons
- Most expensive tier is needed to unlock the best features
- Steeper learning curve than a basic competitor
- Limited offline use; requires an internet connection
Pricing
| Tier | Price | What's included |
|---|---|---|
| Free | $0 | Core features with monthly usage caps. |
| Starter / Pro | $19/mo | Higher limits, priority output, removed watermarks, and core team features. |
| Team / Business | Custom | SSO, audit logs, dedicated support, and volume pricing for organizations. |
How it compares
If you're weighing What The Diff against alternatives, the closest competitors in the Code category are GitHub Copilot and Cursor. GitHub Copilot (Paid, $10/mo) tends to win on pricing flexibility, while What The Diff usually pulls ahead on an unusually generous free tier. For most teams the decision comes down to budget and which integrations you already rely on.
FAQ
Does What The Diff offer a free trial?
Yes. What The Diff has a free tier that lets you try the core product before deciding whether to upgrade. Paid plans add higher usage limits and more advanced features.
Does What The Diff have an API?
Most code tools at this tier ship an API. Check What The Diff's docs at https://whatthediff.ai for the latest endpoints, rate limits, and SDKs.
Is What The Diff good for teams?
Yes — What The Diff is built with teams in mind. Workspaces, shared assets, and admin controls are part of its paid plans.