Is Euki Really Free? How the Period Tracker Is Funded

Updated

Yes. Euki is free to use, with no paywalls, according to its website. The site states the app is "100% free to use" and describes itself as "Private and free forever." It is available in English and Spanish.

The more useful question is how a period tracker stays free without selling user data. Euki's answer is that it doesn't collect personal data in the first place, so there is nothing to sell or use for ad targeting. Instead, it is funded by community support.

How Euki Is Funded

Euki is an open-source project managed by an independent 501(c)3 nonprofit organization. According to the site, funding comes from:

  • Donations from the community, which the site says are tax-deductible
  • Membership support ("Become a member")
  • Merch sales through Euki's merch shop

The site frames this as a values choice: "We believe that privacy, freedom of speech and information, and bodily autonomy are human rights, not paid features."

What "Free" Means Here

Claim on the site What it means for you
"100% free to use" No paywall to access the app
"You won't find paywalls here" No locked premium tier described
No third-party tracking Your activity isn't used for ad targeting
Never collects personal data No data to sell or monetize
Nonprofit + donations Costs covered by community support, not user fees

Why This Matters for a Period Tracker

Most free apps are paid for somehow — often through advertising or data. Euki's model removes that tradeoff by not collecting the data in the first place and asking users who can to support the project instead. If you want a tracker without a subscription, Euki fits that description based on its own published statements.

One practical note: because funding depends on donations and merch, the project's long-term sustainability rests on continued community support rather than revenue from users. That's worth knowing if you're choosing a tool you plan to rely on for years.

How to Support Euki If You Want To

  • Become a member through the site
  • Donate (the site says donations are tax-deductible)
  • Buy from Euki's merch shop

None of these are required to use the app, based on the site's description.