A meter that starts generous and tracks your traffic
PostHog’s flag pricing starts genuinely free: the first million requests each month cost nothing, and seats are unlimited at no charge. At small scale it’s the best free deal in the category and we won’t pretend otherwise.
The catch is the shape of the meter, not the starting price. Past the free million, every flag request is billed at US$0.0001 each, stepping down as volume grows. Flags live on your hottest paths: page loads, API calls, session starts. That means the flag bill tracks your traffic. Five million requests a month is about US$235; twenty million is about US$710. The launch that triples your traffic triples the very line item that was free when you adopted it.
RocketFlag charges A$79/month at any volume. One customer serves millions of evaluations a month and pays what a three-person team pays. The invoice is boring on purpose.
Where PostHog genuinely wins
PostHog’s pitch isn’t really “feature flags”. It’s “every product tool in one place”, and it’s a good pitch. Analytics, session replay, experiments with a real stats engine, surveys and flags share one SDK and one data model. If you want that bundle, or you’re under a million flag requests a month, PostHog is the right choice and no flat price changes that.
We’re the opposite trade: flags only, done properly. Evaluations served in milliseconds from regions close to your users, and Caretaker keeping your flag list honest with AI-agent removal prompts, because a flag tool’s job includes helping you delete flags.
Run the numbers at your actual traffic
Estimate your monthly flag evaluations a year from now, counting every page load and API call that checks a flag, and multiply by PostHog’s published rates. If you land under the free million and want the platform, take PostHog; it’s excellent software. If the number that decides it is a per-request meter, that’s exactly the thing we removed.
