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Quick answer
Splash, Euki and drip are period trackers with no paid tier, and Apple Health Cycle Tracking is free on Apple devices. Flo and Clue have free versions but keep features such as reports, cycle sharing or pregnancy modes behind a subscription. Check what is paywalled, account rules and export before you commit.
- Many “free” period trackers keep reports, partner sharing or pregnancy modes behind a subscription.
- Splash, Euki and drip have no paid tier; Apple Health is free on Apple devices.
- Check what is paywalled, account requirements and an export option before you commit months of data.
“Free” on an app store usually means free to download. Many period trackers then keep features such as reports, partner sharing or pregnancy modes behind a subscription. This guide sorts trackers by what you get without paying, as of October 2026. We make Splash, so we have put the facts about other apps next to their own help pages.
Which period trackers are completely free?
| App | Price | What needs paying for | Account needed? |
|---|---|---|---|
| Splash | Free, no paid tier | Nothing: reports, partner sharing and every mode are free | No (optional, for encrypted sync) |
| Euki | Free, donation-funded non-profit | Nothing | No |
| drip | Free, open source | Nothing | No |
| Apple Health Cycle Tracking | Free, built into iPhone | Nothing (Apple devices only) | Apple ID |
| Clue | Free version plus Clue Plus | Sharing your cycle, Conceive, Perimenopause and Pregnancy modes | Needed to share |
| Flo | Free version plus Flo Premium | Doctor report, Symptom Checker, full library and trends | Optional (Anonymous Mode) |
Sources: each app’s own website or help centre, listed below. Prices vary by region, so we don’t quote them. Tell us if anything has changed and we will correct it.
How do free period apps make money?
Running an app costs money, so it is fair to ask how a free one pays its way. The usual answers are subscriptions (a free tier that leads to a paid one), advertising, partnerships and, in the worst cases, sharing data with third parties. Non-profits such as Euki rely on donations. Splash is run by WhealBit, a small UK company, and keeps costs low because your data lives on your phone rather than on our servers.
Third-party code matters for privacy. Advertising and analytics kits (SDKs) inside an app can send information about how you use it to other companies. In 2021 the US Federal Trade Commission finalised an order against Flo Health over health data shared with analytics and marketing firms, which Flo did not admit.
What should a free period tracker include?
- Period and fertile-window estimates shown as ranges, not one confident date.
- Symptom, mood and flow logging without a daily limit.
- A summary you can show a doctor, because that is when tracking pays off.
- Export of your own data, so you are never locked in.
- A clear privacy policy that says where your data is stored and who can see it.
How to check an app yourself in five minutes
- Open the app store listing and read “In-app purchases” and the privacy label.
- Search the privacy policy for “advertising”, “partners” and “sell”.
- Check whether you can use it without an account.
- Look for an export option before you log months of history.
- Search the app’s name with “Mozilla Privacy Not Included” or “FTC”.
For side-by-side detail, see our dated comparisons of Splash and Flo and Splash and Clue, the best Flo alternatives, the best Clue alternatives and our ranking of the most private period trackers.
Sources
Written by the Splash teamSources checked
This is general information, not medical advice. Splash can’t diagnose. If you’re worried, talk to a GP, pharmacist or sexual health clinic. In an emergency call 999 (UK) or 911 (US). How we write and check articles.