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Splash vs Flo

Flo is one of the biggest period and pregnancy apps, with a free plan and a paid Premium tier. Here is a side-by-side look at both, from each app’s own pages.

In short: Flo and Splash both predict periods and fertile days. Flo has a much larger expert library, a community and a free Anonymous Mode, and keeps its doctor report, Symptom Checker (not offered in the UK or EU) and expert courses in Premium. Splash is free with no paid tier, needs no account, and encrypts sync and partner sharing. Reviewed 28 October 2026.

Last reviewed against Flo’s own pages · 10 sources · what changed

Flo has a far larger expert library, native apps and an Anonymous Mode. Splash gives you its doctor report, symptom guide and full library free, and needs no account at all.

Splash
Free, with no paid tier
Flo
Free plan plus Flo Premium (monthly, yearly or Family plan; price varies by region)

Choose Splash if

  • You want everything free, with no Premium tier
  • You would rather not create an account
  • You want sync and partner sharing that are end-to-end encrypted

Choose Flo if

  • You want a large library written with named expert reviewers
  • You want a native iOS/Android app and wearable links
  • You want an in-app community and a chat-style Health Assistant

Try it beside Flo. Splash opens in your browser with no sign-up, and you can import your history and keep both while you decide.

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Side by side

Splash vs Flo Last checked
FeatureSplashFlo
PriceSource [2] [1]Free, no paid tierFree plan + Premium
Account neededSource [4]NoOptional Anonymous Mode, no email
Where your logs liveSource [4]On your device; optional E2E-encrypted syncFlo servers (Anonymous Mode strips identifiers)
Period and ovulation predictionsSource [2]YesYes, free
Partner sharingSource [5]Free, E2E-encrypted, pick categoriesBasic sharing free; extras with Premium
Report for your doctoriOS only; covers the last six months · Source [6]Free; print, PDF or an expiring encrypted linkPremium
Symptom guideSource [6]Free (helps decide when to see someone)Premium; not in UK/EU
Expert articles and coursesFlo says 100+ health experts · Source [6]FreePremium
Cycle trends and patternsSource [6]FreePremium
Native app store appsSource [2]Android app and web app, with iPhone and Apple Watch appsiOS and Android
Import from FloYes–

Where Flo is stronger

  • A much larger library, which Flo says is written with 100+ external health experts.[6]
  • Anonymous Mode, free for everyone, uses Oblivious HTTP so Flo says it cannot link your identity to your health data.[4]
  • Basic Flo for Partners is free for all users, and Premium adds expert content for partners.[5]
  • A Health Assistant chat in Premium, native iOS and Android apps, a Family plan that shares Premium with up to five people, and a community (Secret Chats).[6][3][2]
  • In Mozilla’s July 2026 review of six period trackers, Flo scored 7 out of 10. Reports say it does not share health data with advertisers, analytics or marketing partners.[7][8]

Public record

We include this because privacy is the main reason people compare trackers. It is a dated summary of public sources, not a judgement about Flo today.

  • In 2021 Flo settled US FTC allegations that it shared health data with third parties, and agreed to an order requiring consent before sharing.[9]
  • In August 2025 a California jury found Meta liable for collecting data from Flo’s app without consent. Flo and Google had settled before the verdict.[10]

Questions people ask about Splash and Flo

Is Splash a good Flo alternative?

If you want the doctor report, symptom guide and full library without paying, and would rather not make an account, yes. If you want Flo’s bigger expert library, a community or a chat-style assistant, Flo may suit you better. Many people try both: Splash can import a Flo export.

What does Flo Premium include that Splash gives free?

According to Flo’s help centre, Premium includes cycle patterns, expert courses and articles, a Health Assistant, a Symptom Checker (not available in the UK or EU) and a doctor’s report on iOS. Splash includes its doctor report, symptom guide, insights and library free, with no Premium tier.

Can I move my data from Flo to Splash?

Yes. Splash can import a Flo data export on your device. Ask Flo for a copy of your data in JSON format, then choose the file in Splash. It is read on your phone and is not uploaded to us. Flo can take a few days to send the file.

Is Flo safe to use?

Flo offers a free Anonymous Mode and has changed its practices since its 2021 FTC settlement. Mozilla’s July 2026 review scored it 7 out of 10 and reported no health data shared with advertisers or analytics partners. Read its privacy policy and decide what you are comfortable with. Splash works differently: with no account, nothing about your cycle reaches us.

What changed at the last review

  • : Flo’s doctor report is iOS only and covers six months; added Flo’s Health Assistant, Family plan and 100+ experts claim; added the July 2026 Mozilla review; replaced the 2025 class-action line with the August 2025 verdict reports.

Sources

  1. Flo help centre: What is the price for a Flo subscription? accessed 2026-10-28
  2. Flo: Premium membership (free vs Premium table) accessed 2026-10-26
  3. Flo: Family plan accessed 2026-10-28
  4. Flo: Anonymous Mode FAQ accessed 2026-10-26
  5. Flo help centre: Do I need a subscription to access Flo for Partners? (posted 3 Oct 2024) accessed 2026-10-28
  6. Flo help centre: What is included in Flo Premium (posted 4 Oct 2024) accessed 2026-10-28
  7. DH Insights: Mozilla report reveals wide privacy gaps among popular period tracking apps (30 Jul 2026) accessed 2026-10-28
  8. 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.)
  9. FTC: FTC finalizes order with Flo Health (22 Jun 2021) accessed 2026-10-26
  10. FemTech Insider: California jury rules Meta violated privacy laws in Flo Health data case (6 Aug 2025) accessed 2026-10-28

Splash facts come from the app itself: local-first storage, optional AES-GCM-256 end-to-end encrypted sync, and imports from Flo, Clue, Apple Health and drip exports.

More comparisons

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

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Splash doctor report screen summarising recent cycles and symptoms