kitio.aiGreptile vs What The Diff
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Greptile starts at See pricing page and What The Diff starts at $19/mo. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Full codebase graph
- Three review depths
- Custom rules
- Learns from feedback
- GitHub and GitLab
- PR descriptions
- Inline code refactoring
- Team summaries
- GitHub and GitLab support
- Slack and webhook alerts
| Feature | Greptile | What The Diff |
|---|---|---|
| Best for | AI code reviewer that indexes your whole codebase first | AI pull request descriptions and code review for GitHub and GitLab |
| Category | Coding | Coding |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $19/mo |
| Free plan | Yes | Yes |
| Made by | Greptile | What The Diff |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Greptile starts at See pricing page and What The Diff starts at $19/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Starter
Free
- 1 active developer
- 50 free credits per month
- Unlimited repositories
Pro
$1 / credit
- 14-day free trial
- No seat fees, unlimited developers
- Base review 1 credit, Apex 10 credits
- Knowledge Base MCP, cross-repo context
Enterprise
Custom
- For organizations at scale
- Annual and multi-year contracts
2 plans
Free
Free
- 25,000 tokens a month
- Unlimited repositories
- Automated PR descriptions
Pro
$19/mo
- 200,000 tokens a month
- Instant code refactoring
- Slack, webhook and email alerts
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Greptile
- Catches cross-file bugs
- Free for open source
- Adjustable review depth
- More noisy comments than some rivals
- Extra reviews cost per credit
What The Diff
- Writes PR descriptions automatically
- Works on GitHub and GitLab
- Unlimited repositories on every plan
- Token limits cap monthly use
- Free plan is rate limited
- Not a full code review replacement
Which one should you choose?
Choose Greptile if you want:
- Catches cross-file bugs
- Free for open source
- Adjustable review depth
Watch out: more noisy comments than some rivals.
Choose What The Diff if you want:
- Writes PR descriptions automatically
- Works on GitHub and GitLab
- Unlimited repositories on every plan
Watch out: token limits cap monthly use.
Greptile vs What The Diff FAQ
What is the difference between Greptile and What The Diff?
Greptile: AI code reviewer that indexes your whole codebase first. What The Diff: AI pull request descriptions and code review for GitHub and GitLab. Both are coding tools.
Is Greptile or What The Diff cheaper?
Greptile starts at See pricing page and What The Diff starts at $19/mo. Check both pricing pages for current plans.
Do Greptile and What The Diff have free plans?
Greptile: Yes. What The Diff: Yes.
Who makes Greptile?
Greptile is made by Greptile, based in United States.
Who makes What The Diff?
What The Diff is made by What The Diff.
Which should I choose, Greptile or What The Diff?
Choose Greptile if you value catches cross-file bugs and free for open source. Choose What The Diff if you value writes pr descriptions automatically and works on github and gitlab.