kitio.aiAlumnium vs BitDive
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Alumnium is completely free, while BitDive is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Plain-language test steps
- Selenium, Playwright and Appium
- MCP server for coding agents
- TypeScript, Python and Java clients
- Choice of AI provider
- Runtime context via MCP
- Before and after trace diffs
- Method-level observability
- Tests generated from traces
- Self-hosted deployment
| Feature | Alumnium | BitDive |
|---|---|---|
| Best for | Open-source AI test harness for web and mobile apps, with MCP | Feeds real Java runtime traces to coding agents and turns them into tests |
| Category | Coding | Coding |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | Alumnium | BitDive |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Alumnium is completely free, while BitDive is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Developer Use
Free
- Full workflow for one developer
- No pricing gate to start
Company Rollout
Contact sales
- Private cloud or air-gapped
- Priority engineering support
- Custom integration work
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
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
BitDive
- Free for individual developers
- Agents work from real execution data
- Generates regression tests from traces
- Java-focused
- Company rollout needs a sales conversation
- Requires instrumenting your application
Which one should you choose?
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.
Choose BitDive if you want:
- Free for individual developers
- Agents work from real execution data
- Generates regression tests from traces
Watch out: java-focused.
Alumnium vs BitDive FAQ
What is the difference between Alumnium and BitDive?
Alumnium: Open-source AI test harness for web and mobile apps, with MCP. BitDive: Feeds real Java runtime traces to coding agents and turns them into tests. Both are coding tools.
Is Alumnium or BitDive cheaper?
Alumnium is completely free, while BitDive is freemium.
Do Alumnium and BitDive have free plans?
Alumnium: Yes, fully free. BitDive: Yes.
Who makes Alumnium?
Alumnium is made by Alumnium.
Who makes BitDive?
BitDive is made by BitDive.
Which should I choose, Alumnium or BitDive?
Choose Alumnium if you value free and mit licensed and builds on drivers you already use. Choose BitDive if you value free for individual developers and agents work from real execution data.