kitio.aiChecksum vs Alumnium
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Alumnium is completely free, while Checksum is paid.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Generated Playwright tests
- Self-healing tests
- API test agent
- CI integration
- Human-verified delivery
- Plain-language test steps
- Selenium, Playwright and Appium
- MCP server for coding agents
- TypeScript, Python and Java clients
- Choice of AI provider
| Feature | Checksum | Alumnium |
|---|---|---|
| Best for | AI agents that write and repair Playwright and API tests for you | Open-source AI test harness for web and mobile apps, with MCP |
| Category | Coding | Coding |
| Pricing model | Paid | Free |
| Starting price | See pricing page | Free |
| Free plan | No | Yes, fully free |
| Made by | Checksum | Alumnium |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Alumnium is completely free, while Checksum is paid.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Checksum
- Tests delivered as reviewable pull requests
- Broken tests are repaired automatically
- No per-seat or per-run fees
- No public price list
- Requires a demo to get started
- Focused on Playwright for UI tests
Alumnium
- Free and MIT licensed
- Builds on drivers you already use
- Lets coding agents test their own changes
- Needs your own model API key
- Each test run adds model API costs
- Still pre-1.0
Which one should you choose?
Choose Checksum if you want:
- Tests delivered as reviewable pull requests
- Broken tests are repaired automatically
- No per-seat or per-run fees
Watch out: no public price list.
Choose Alumnium if you want:
- Free and MIT licensed
- Builds on drivers you already use
- Lets coding agents test their own changes
Watch out: needs your own model api key.
Checksum vs Alumnium FAQ
What is the difference between Checksum and Alumnium?
Checksum: AI agents that write and repair Playwright and API tests for you. Alumnium: Open-source AI test harness for web and mobile apps, with MCP. Both are coding tools.
Is Checksum or Alumnium cheaper?
Alumnium is completely free, while Checksum is paid.
Do Checksum and Alumnium have free plans?
Checksum: No. Alumnium: Yes, fully free.
Who makes Checksum?
Checksum is made by Checksum.
Who makes Alumnium?
Alumnium is made by Alumnium.
Which should I choose, Checksum or Alumnium?
Choose Checksum if you value tests delivered as reviewable pull requests and broken tests are repaired automatically. Choose Alumnium if you value free and mit licensed and builds on drivers you already use.