kitio.aiRepo Prompt vs Alumnium
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Repo Prompt starts at Free and Alumnium starts at Free. 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
- Context Builder
- CodeMaps
- MCP and CLI agent integrations
- Multi-agent orchestration
- Reviewable handoffs
- Plain-language test steps
- Selenium, Playwright and Appium
- MCP server for coding agents
- TypeScript, Python and Java clients
- Choice of AI provider
| Feature | Repo Prompt | Alumnium |
|---|---|---|
| Best for | Native macOS app that builds context for coding agents | Open-source AI test harness for web and mobile apps, with MCP |
| Category | Coding | Coding |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | RepoPrompt | Alumnium |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Repo Prompt starts at Free and Alumnium starts at Free. Check both pricing pages for current plans.
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
Repo Prompt
- Free and open source
- Fine control over what context agents see
- Works with MCP clients and CLI agents
- macOS only
- Classic edition is archived with no support
- Needs your own model or agent accounts
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 Repo Prompt if you want:
- Free and open source
- Fine control over what context agents see
- Works with MCP clients and CLI agents
Watch out: macos only.
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.
Repo Prompt vs Alumnium FAQ
What is the difference between Repo Prompt and Alumnium?
Repo Prompt: Native macOS app that builds context for coding agents. Alumnium: Open-source AI test harness for web and mobile apps, with MCP. Both are coding tools.
Is Repo Prompt or Alumnium cheaper?
Repo Prompt starts at Free and Alumnium starts at Free. Check both pricing pages for current plans.
Do Repo Prompt and Alumnium have free plans?
Repo Prompt: Yes, fully free. Alumnium: Yes, fully free.
Who makes Repo Prompt?
Repo Prompt is made by RepoPrompt.
Who makes Alumnium?
Alumnium is made by Alumnium.
Which should I choose, Repo Prompt or Alumnium?
Choose Repo Prompt if you value free and open source and fine control over what context agents see. Choose Alumnium if you value free and mit licensed and builds on drivers you already use.