# Devin vs What the Diff

Devin records 2,549,346 monthly visits with +1% month-over-month growth and Paid pricing. What the Diff records 1,113 monthly visits with -59.8% growth and Freemium pricing.

| Metric | [Devin](https://openaitools.app/tool/devin) | [What the Diff](https://openaitools.app/tool/whatthediff) |
| :--- | :--- | :--- |
| Website URL | https://devin.ai | https://whatthediff.ai |
| Categories | AI Code Assistant, AI Agent, AI Developer Tools | AI Code Review, AI Code Assistant, AI Copilot, AI GitHub |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 2,549,346 | 1,113 |
| MoM Growth Rate | +1% | -59.8% |
| Primary Market | United States | United States |
| Direct Visits | 1,386,401 | 435 |
| Review Score | 4.3 | 4.2 |
| Saved Count | 0 | 5 |
| Supported Platforms | website | Website |

## Devin

Devin sits at the agentic end of the AI coding spectrum. Instead of suggesting the next line, it takes a ticket-level goal - "add SAML SSO for enterprise customers" or "investigate this API latency spike" - explores the codebase across repositories, implements changes, runs tests, and explains the resulting pull request in plain language. It maintains a wiki-style map of the codebase so it can navigate unfamiliar services and keep documentation current as the code changes.

A defining feature is that Devin works on its own machine. It provisions Windows, Mac, and Linux virtual machines as needed, builds the project, exercises it in a browser, and can record itself clicking through the feature it just built. Long-running work continues in the cloud when your laptop is closed, and large tasks can be split across parallel agents that Devin coordinates and reports on.

For teams, Devin extends beyond one-off prompts. You can tag @Devin in Slack or Teams so it reads a thread and replies with a PR, set up automations that fix failing tests or patch vulnerable dependencies as they appear, and run security reviews. Pricing is seat-based and enterprise-oriented, with an Ultra tier for heavier autonomous usage, and Cognition has marketed large security-credit programs for enterprises.

**Pricing & Plans:** Paid, enterprise-oriented. Devin is sold on a per-seat subscription with tiered plans (including higher-capacity tiers for heavier autonomous use) plus usage allowances; Cognition also runs credit programs and enterprise agreements. Because plans and credit packages change, check Cognition's official pricing page for current numbers.

- **End-to-end autonomous coding:** Devin plans, writes code, runs tests, and opens pull requests across complex, multi-repository codebases without waiting for line-by-line approval.
- **Its own virtual machines:** 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.
- **Slack, Teams, and alert integration:** Mention @Devin in a thread to delegate a fix, or connect CI, PagerDuty, and issue trackers so it reacts to failures and alerts automatically.
- **Parallel cloud agents:** Delegate a large task and Devin splits it across parallel cloud agents that keep working after you close your laptop, then reports back.
- **Codebase wiki and automations:** Devin maintains a living map of the architecture and supports recurring automations such as dependency upgrades, test fixes, and security scans.

**Strengths:** Handles ticket-level autonomous work rather than only suggesting code completions; Tests in its own browser and VMs, which catches issues that pure code generation misses; Deep workflow integration with Slack, Teams, CI, and alerting tools; Keeps working in parallel cloud agents even when your machine is off

**Limitations:** Premium, seat-based pricing puts it out of reach for casual individual use; Complex or poorly specified tasks still need human review before merging; Maximum value depends on having a well-structured repo and clean test setup

[Profile (Markdown)](https://openaitools.app/tool/devin.md)

## What the Diff

What the Diff plugs into GitHub or GitLab and works where developers already are. When you open a pull request, it reads the diff through the provider API and generates a descriptive comment explaining what changed, why it likely changed, and what reviewers should pay attention to. The result is a first draft of PR context that a reviewer would otherwise have to reconstruct by reading the patch.

Beyond PR descriptions, the product covers summary notifications pushed to Slack, email, or webhooks so non-technical teammates stay informed, weekly reports that aggregate a team's progress, inline refactoring where you can request improvements in a comment and let the AI draft the change, and public changelogs that can be published or pulled into other tools through a JSON API. Granular controls let you choose repositories, skip CI pull requests, delay drafts, and manage token usage.

What the Diff is built by Beyond Code and follows a token-based usage model: each diff consumes tokens, with an average pull request costing roughly 2,300 tokens. The company states that it does not store your code, that third-party services do not store it either, and that your code is never used to train models. Unused tokens do not roll over between billing cycles.

**Pricing & Plans:** What the Diff is freemium. The Free plan costs $0 per month and includes 25,000 tokens (about 10 pull requests) with unlimited repositories, automated PR descriptions, and inline refactoring. Pro starts at $19 per month for 200,000 tokens (about 40 pull requests) and scales through 500k, 1.5M, and unlimited tiers, adding Slack, webhook, and email notifications plus priority email support. No credit card is required to start, and plans do not upgrade automatically.

- **Automatic pull request descriptions:** Every PR gets a written summary of what changed in plain English, giving reviewers context without digging through the patch.
- **Summary notifications:** Simplified, translated summaries go out via Slack, email, or webhooks to keep non-technical teammates in the loop.
- **Inline AI refactoring:** Request improvements directly in a pull request comment and let the AI help draft the refactoring.
- **Weekly team reports:** Aggregate a week of work into a single clear update so nobody has to chase progress manually.
- **Public changelogs and JSON API:** Publish a public record of what is new, or pull the changelog into your own tools through a JSON API.

**Strengths:** Works inside GitHub and GitLab with no new workflow to learn; Produces genuinely useful plain-English context for non-technical readers; Free tier with unlimited repositories covers light individual use; States clearly that your code is not stored or used for model training

**Limitations:** Token-based usage can be hard to predict for teams with large diffs; Unused tokens do not roll over between billing cycles; Requires full repository access because GitHub and GitLab lack a diff-only permission

[Profile (Markdown)](https://openaitools.app/tool/whatthediff.md)

## Frequently Asked Questions

### How do Devin and What the Diff compare in monthly traffic?

Devin has 2,549,346 monthly visits, while What the Diff has 1,113. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Devin has a month-over-month growth rate of +1%; What the Diff has -59.8%.

### How does pricing compare?

Devin: Paid. Paid, enterprise-oriented. Devin is sold on a per-seat subscription with tiered plans (including higher-capacity tiers for heavier autonomous use) plus usage allowances; Cognition also runs credit programs and enterprise agreements. Because plans and credit packages change, check Cognition's official pricing page for current numbers. What the Diff: Freemium. What the Diff is freemium. The Free plan costs $0 per month and includes 25,000 tokens (about 10 pull requests) with unlimited repositories, automated PR descriptions, and inline refactoring. Pro starts at $19 per month for 200,000 tokens (about 40 pull requests) and scales through 500k, 1.5M, and unlimited tiers, adding Slack, webhook, and email notifications plus priority email support. No credit card is required to start, and plans do not upgrade automatically.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Cursor](https://openaitools.app/tool/cursor) | 23,297,751 | +8.4% | Freemium | An AI-native code editor providing advanced multi-file code generation and editing, though less fully autonomous end-to-end than Devin. | [.md](https://openaitools.app/tool/cursor.md) |
| 2 | [Manus](https://openaitools.app/tool/manus) | 19,195,779 | -1.7% | Free Trial | A general autonomous agent platform executing multi-step goals and browsers, suitable for broader web and coding workflows. | [.md](https://openaitools.app/tool/manus.md) |
| 3 | [Google Antigravity](https://openaitools.app/tool/google-antigravity) | 16,054,109 | +8.1% | Freemium | Google's agentic development platform running parallel AI coding agents across an IDE and CLI workspace. | [.md](https://openaitools.app/tool/google-antigravity.md) |
| 4 | [Replit](https://openaitools.app/tool/replit) | 10,016,437 | -7.7% | Freemium, Paid | A cloud development platform featuring an AI agent that builds, runs, and deploys full-stack apps automatically. | [.md](https://openaitools.app/tool/replit.md) |
| 5 | [Qoder](https://openaitools.app/tool/qoder) | 5,145,040 | +81.8% | Freemium, Free Trial, Free | An agentic coding platform and IDE plugin that reads entire codebases to execute complex multi-file tasks. | [.md](https://openaitools.app/tool/qoder.md) |
| 6 | [Cursor](https://openaitools.app/tool/cursor-sh) | 4,790,129 | +6.5% | Freemium | The AI coding agent that turns ideas into shipped software | [.md](https://openaitools.app/tool/cursor-sh.md) |
| 7 | [Kiro](https://openaitools.app/tool/kiro) | 3,330,476 | +4.6% | Freemium | An AWS spec-driven AI IDE and agent platform that plans, builds, reviews, and verifies software engineering work. | [.md](https://openaitools.app/tool/kiro.md) |
| 8 | [Command Code](https://openaitools.app/tool/command-code) | 2,358,177 | -12.1% | Freemium, Contact for Pricing | The coding agent that learns your coding taste | [.md](https://openaitools.app/tool/command-code.md) |
| 9 | [CodeRabbit](https://openaitools.app/tool/coderabbit) | 1,048,880 | +4.6% | Freemium, Free Trial, Paid, Contact for Pricing | AI code review, PR triage, and security monitoring for fast-moving teams | [.md](https://openaitools.app/tool/coderabbit.md) |
| 10 | [Orca](https://openaitools.app/tool/orca) | 1,025,891 | +1% | Free, Open Source, Enterprise on request | Run many coding agents in parallel, each in its own worktree | [.md](https://openaitools.app/tool/orca.md) |

---
Source: https://openaitools.app/compare/devin-vs-whatthediff

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)