MergeSafe vs cubic
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How is MergeSafe different from cubic?
cubic reviews your code and can push fixes for what it finds. MergeSafe reviews it too, then decides whether it is safe to merge: it checks the packages each pull request adds, fails a check while a blocking finding is open, and charges per review instead of per developer.
Checked November 2026 against cubic’s own pricing page and docs (links below). Both products work on GitHub only.
At a glance
| cubic | MergeSafe | |
|---|---|---|
| Pricing | Per developer: Team $40, Pro $99, Max $200 a month billed monthly, less yearly. Each seat includes 40,000 to 160,000 reviewed lines; extra lines are $20 per 10,000. | Per review, from a prepaid balance. No seats. See Pricing. |
| Free | 20 reviews a month on the free plan, and free for public repositories within a fair-use allowance. | $20 to start. The dependency gate is free on every repository. |
| Platforms | GitHub only. | GitHub only. |
| Vulnerable dependencies | Codebase scans report known CVEs that your code reaches. In beta, by request, on Pro and Max, for up to 3 repositories, on a schedule rather than per pull request. | The dependency gate checks every pull request, with or without a review. |
| Malicious packages | Its docs suggest other tools for malware detection in dependencies. | Flagged by the dependency gate for npm and PyPI, with lookalike and made-up names. |
| Merge check | Its homepage says each pull request gets a score for how safe it is to merge. Its docs describe auto-approval, with branch protection still in charge. | The mergesafe-review check fails while a P0 or P1 finding is open. |
| Fixes | Auto-fix (beta) pushes fixes for findings and failing CI to the branch. | Fixes for Sentry errors, tested before a pull request opens. Optional. |
| CLI and agents | A CLI, an MCP server and setup for coding agents. | Findings over MCP and the API. |
Where cubic is strong
- Fixing, not only finding. Auto-fix pushes changes for real findings and failing CI, and runs lint, type checks and tests where it can.
- Context. It reviews across repositories and learns rules from your team’s past comments.
- Extras. A generated wiki of your repositories, diagrams of what changed, and analytics on AI coding.
- A free way in. 20 reviews a month on the free plan, free public repositories, and a 50% discount for nonprofits and schools.
Where MergeSafe is different
- Supply chain before the merge. Every pull request’s new or changed packages are checked for known vulnerabilities, malware, lookalike names and names the registry has never seen, free, on every plan.
- A check you can require. The merge-readiness score comes with a check run that fails while a blocking finding is open.
- Per review, not per seat. A team pays for the reviews it runs, not for each developer, and no line allowance runs out.
- After the merge. The advisory check tells you when a new advisory affects your code.
Which should I pick?
Pick cubic if you want a reviewer that also pushes fixes to the branch and fixes failing CI, and a per-developer plan suits you. Pick MergeSafe if you want one gate before merge, with package checks on every pull request, paid per review.
Sources
cubic’s pages, checked November 2026:
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