A million monthly active users, even free ones, would cost you ~$10K/month on LaunchDarkly. A million sounds like a lot, but "active" can mean one visit, even anonymous users. ~$120K/year for feature flags is a ridiculous line item.

These SaaS companies are only valued this much because they charge based on MAUs, not request-based. I prefer PostHog's model. 100M requests/month is ~$2K [*].

[*] I'm not affiliated with PostHog.

Shoutout to ConfigCat, https://configcat.com/

Same features as all these big guys, EU hosted, and down-to-earth pricing. Even the free tier got me quite far.

I'm unaffiliated btw.

A file syncing app "that could be an FTP server or USB stick" is over double that ;)