Propel

A reviewer that needs a learning period

Propel reviews pull requests and positions itself as an AI tech lead: it is meant to judge a change against your architecture, codebase and written policies rather than against generic lint rules. The vendor's own trial copy admits this takes time, saying the product needs a period to learn your team's patterns. That is a useful honesty signal. Expect the first weeks of comments to be noisier or blander than the later ones.

Tiers, with the numbers

Pricing comes from the vendor's pricing page. Every plan starts with a 30-day trial at full access to that plan, no credit card required.

• Starter, $24 per developer per month (billed annually): up to 50 developers and 1,000 PRs a month. Basic AI review, GitHub and GitLab integration, basic analytics and basic security scanning. No custom rules.
• Professional, $64 per developer per month (billed annually): up to 500 developers and 10,000 PRs a month. Multiple AI passes with top-tier models, custom coding standards, vulnerability scanning, team performance metrics and API access.
• Enterprise, custom: unlimited developers and PRs, on-premise deployment, SLA, custom integrations and onboarding.

Both listed prices are the annual rate, a 20% saving; the monthly-billing figures are not shown even though a toggle exists, so ask if you need to pay monthly.

The caps matter more than they look

Starter's 1,000 PRs a month sounds generous until you divide by team size. Fifty developers opening one PR a day would hit roughly that number in a month. The page says that when you approach a limit you get notified, and extra PRs are queued for review in the next billing cycle, so overflow means delayed reviews, not a hard stop or a surprise bill. Plan for that if your team ships in bursts.

Rules are the product

The step from Starter to Professional is mostly about teaching Propel what your team cares about. Custom coding standards are Professional. If your review value comes from enforcing house conventions such as error-handling patterns or banned APIs, Starter will feel generic, and the roughly 2.7x price difference is the price of that. Multiple review passes in the middle tier should catch more but will also add comments for humans to triage.

What is awkward

The comparison table on the pricing page does not clearly show which plan includes Bitbucket integration, custom rules or API access, and the Enterprise list does not mention the API. Propel says it does not store source code and uses SOC 2 compliant infrastructure, but security-sensitive teams should ask for the audit report instead of relying on the page.