Open Splash

The best Flo alternatives

People usually look for a Flo alternative for one of three reasons: they want features free that Flo puts in Premium, they want less data leaving their phone, or they want simpler partner sharing.

In short: Good Flo alternatives in 2026 are Splash (free, no account, encrypted partner sharing), Euki and drip (open source, local-only), Apple Health Cycle Tracking (iPhone) and Clue (science-led, EU-based). The right pick depends on whether you want privacy, free features or sharing. Splash can import your Flo export on your phone. Reviewed 28 October 2026.

Last reviewed . Written by Splash, which is on this list.

The short version

  • Splash: free, no account, encrypted partner sharing.
  • Euki: maximum privacy, open source.
  • Apple Health Cycle Tracking: iPhone and Apple Watch users.
  • Clue: science-led content, EU jurisdiction.
Splash Today screen with the cycle ring

At a glance

Flo alternatives compared Last checked
FeatureSplashEukiApple HealthCluedrip
CostFreeFreeFreeFree + PlusFree
No account neededYesYesApple ID–Yes
Data stays on device by defaultYesYesOn device + iCloudNoYes
Partner sharingFree––Plus–
Doctor report or exportFree–PDF export––

A dash means we could not confirm it from a public source.

Five alternatives, and who each suits

  1. Splashour app

    Best for: Free, no account, encrypted partner sharing

    Local-first with optional end-to-end encrypted sync; doctor report, symptom guide, library and every mode free.

    Worth knowing: Installs from your browser in seconds, and imports your Flo or Clue history. Not yet independently reviewed by Mozilla.

  2. Euki

    Best for: Maximum privacy, open source

    Free, non-profit, open source, local-only, with a PIN, decoy screen and auto-delete. Mozilla’s top scorer in July 2026 (10 out of 10).

    Worth knowing: No sync between devices, so data is lost with the phone; no partner sharing.

    Full comparison with SplashEuki websiteSource: Euki (official site)Source: Mozilla Privacy Not Included: EukiSource: DH Insights: Mozilla report reveals wide privacy gaps among popular period tracking apps (30 Jul 2026)

  3. Apple Health Cycle Tracking

    Best for: iPhone and Apple Watch users

    Built in and free; end-to-end encrypted in iCloud with two-factor authentication; wrist-temperature ovulation estimates and a 12-month PDF for your doctor.

    Worth knowing: Apple devices only.

    Full comparison with SplashApple Health Cycle Tracking websiteSource: Apple Support: Track your menstrual cycle (Cycle Tracking), published 14 Sep 2026

  4. Clue

    Best for: Science-led content, EU jurisdiction

    Named clinician authors, Berlin-based under GDPR, free version available. Scored 8 out of 10 in Mozilla’s July 2026 review.

    Worth knowing: Sharing, Conceive and Perimenopause modes need Clue Plus; account needed to share.

    Full comparison with SplashClue websiteSource: Clue on the App StoreSource: Clue support: How can I share my cycle using Clue Connect?Source: Clue support: What’s Clue Perimenopause mode?Source: DH Insights: Mozilla report reveals wide privacy gaps among popular period tracking apps (30 Jul 2026)

  5. drip

    Best for: Sympto-thermal charting, open source

    Open source, and everything you enter stays on your device; built around temperature, mucus and cervix charting.

    Worth knowing: Plain design; no sharing or sync.

    drip websiteSource: drip (official site)

Still happy with Flo? That is a fine choice too. See the full Splash vs Flo comparison, including where Flo is better.

Questions about Flo alternatives

What is the best free alternative to Flo?

It depends what you miss. For the doctor report, symptom guide and library without paying, Splash is free with no paid tier. For maximum privacy, Euki and drip are free, open source and local-only. On iPhone, Apple Cycle Tracking is built in and free. Clue has a free version, with Clue Plus for extras.

Which Flo alternative is the most private?

Euki is the strongest on privacy: it is open source, stores everything on your device, and Mozilla scored it 10 out of 10 in July 2026. drip is similar. Splash keeps data on your phone with no account, with optional end-to-end encrypted sync. Apple Cycle Tracking is end-to-end encrypted in iCloud with two-factor authentication.

Can I take my Flo history with me?

Yes. Ask Flo for a copy of your data in JSON format, then import it into Splash on your device; it is not uploaded to us. Flo can take a few days to reply, so keep the app until the file arrives. Other apps listed here have their own import routes.

Why do people leave Flo?

Common reasons are features in Premium, such as the doctor report and expert courses, wanting an app that works without an account, and privacy history. Flo agreed an FTC order in 2021, and Mozilla’s July 2026 review scored it 7 out of 10. Many people are happy with Flo, and it remains a fair choice.

Sources

  1. Euki (official site) accessed 2026-10-26
  2. Mozilla Privacy Not Included: Euki accessed 2026-10-26
  3. DH Insights: Mozilla report reveals wide privacy gaps among popular period tracking apps (30 Jul 2026) accessed 2026-10-28
  4. Apple Support: Track your menstrual cycle (Cycle Tracking), published 14 Sep 2026 accessed 2026-10-28
  5. Clue on the App Store accessed 2026-10-26
  6. Clue support: How can I share my cycle using Clue Connect? accessed 2026-10-26
  7. Clue support: What’s Clue Perimenopause mode? accessed 2026-10-28 (Clue blocks automated fetching; read through a search excerpt.)
  8. drip (official site) accessed 2026-10-26
  9. Flo: Premium membership (free vs Premium table) accessed 2026-10-26
  10. Flo help centre: What is included in Flo Premium (posted 4 Oct 2024) accessed 2026-10-28
  11. Flo: Anonymous Mode FAQ accessed 2026-10-26
  12. Flo help centre: Do I need a subscription to access Flo for Partners? (posted 3 Oct 2024) accessed 2026-10-28
  13. Clue support: How much does Clue Plus cost? accessed 2026-10-26
  14. FDA 510(k) K193330: BioWink GmbH (Clue Birth Control), Feb 2021 accessed 2026-10-26
  15. FDA: FDA allows marketing of first direct-to-consumer app for contraceptive use (Aug 2018) accessed 2026-10-26
  16. Natural Cycles help: How does the subscription work? accessed 2026-10-26
  17. Stardust (official site) accessed 2026-10-26
  18. Mozilla Foundation: Nothing Personal, period and ovulation trackers (16 Jul 2026) accessed 2026-10-28 (Mozilla’s page blocks automated fetching. The findings used here are checked against the two reports listed next to it.)

Try Splash next to Flo

Free, no account. Import your history and keep both while you decide.

Get Splash, free
Use it in your browserGet it on Google Play
Splash calendar in dark mode.