Softwr

Healthcare · head to head

Flo vs Woebot Health

Flo logo

Flo

Healthcare

Period and cycle tracking app that settled with the US FTC in 2021 over sharing health data with third parties despite promising not to

From
Free
Rated
-
Full reviewWebsite
Woebot Health logo

Woebot Health

Healthcare

Conversational CBT chatbot that withdrew from consumer distribution and now sells only to payers and providers

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Flo has a free tier, so it costs nothing to try first.
  • Each has a real cost: Flo flo Health settled with the US FTC in 2021 over allegations it shared sensitive health data, including pregnancy and menstruation details, with Facebook, Google and other third parties despite telling users the data would stay private, a fact directly relevant to how much a user should trust current privacy claims without independently checking the published policy.; Woebot Health the company withdrew its consumer app in June 2025 after concluding FDA marketing authorisation was not achievable at acceptable cost, which is a plain signal about both regulatory position and commercial durability.
  • They diverge on capability: Flo covers Cycle and ovulation tracking, Woebot Health covers Scripted CBT dialogue.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Flo and Woebot Health actually diverge.

Attributes where Flo and Woebot Health differ
AttributeFloWoebot Health
Starting priceFreeOn request
Pricing modelFree with a Premium subscriptionquote
Free tierYesNo

Identical on both: platforms (iOS, Android, Web), user rating (Not yet rated), category (Healthcare).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Flo

  • Cycle and ovulation tracking
  • Pregnancy mode
  • Anonymous Mode
  • Symptom and mood logging
  • Expert content library
  • Community and forums

Only in Woebot Health

  • Scripted CBT dialogue
  • Mood tracking
  • Crisis routing
  • Between-session support
  • Payer deployment
  • Provider copilot positioning
  • Research licensing
  • Population reporting

What people use each for

The jobs each tool is most often brought in to do.

Flo

  • Someone tracking cycle and ovulation who wants to weigh app convenience against the sensitivity of the data being loggednot Woebot Health
  • A user in a jurisdiction with legal risk around reproductive health data who wants to check Anonymous Mode and current data sharing policy before logging pregnancy or fertility attemptsnot Woebot Health
  • A buyer wanting to compare Flo directly against Clue on published data practices before choosing which app to trust with this informationnot Woebot Health
  • Someone who wants pregnancy tracking content alongside cycle tracking in one app rather than switching apps mid-pregnancynot Woebot Health

Woebot Health

  • A health plan wanting a low intensity behavioural health option for members on a waiting list for therapynot Flo
  • A provider organisation offering structured between-session CBT practice to patients already in treatmentnot Flo
  • A research group running a trial that needs a clinically scripted rather than generative conversational agent for safety reasonsnot Flo
  • A payer targeting a specific population such as postpartum members where scripted CBT content already existsnot Flo

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Flo

  • Flo Health settled with the US FTC in 2021 over allegations it shared sensitive health data, including pregnancy and menstruation details, with Facebook, Google and other third parties despite telling users the data would stay private, a fact directly relevant to how much a user should trust current privacy claims without independently checking the published policy.
  • Reproductive health data, including logged periods, fertility attempts and pregnancy status, has been the subject of law enforcement data requests in some jurisdictions following changes to reproductive rights law, and cloud-stored logs are a real category of exposure regardless of a vendors intentions.
  • Anonymous Mode, the privacy feature introduced after the settlement, is a setting that must be checked and understood rather than assumed, and its exact scope and default status should be verified in the current privacy policy rather than taken from marketing copy.
  • Free tier predictions rely on self-reported symptom data and general population models, so accuracy for irregular cycles or specific medical conditions is limited compared with clinical tracking.
  • The subscription auto-renews and, like most mobile subscriptions, must be cancelled through app store account settings rather than inside the app itself.

Woebot Health

  • The company withdrew its consumer app in June 2025 after concluding FDA marketing authorisation was not achievable at acceptable cost, which is a plain signal about both regulatory position and commercial durability.
  • It is not an FDA cleared treatment for any indication, so it cannot be positioned to members as therapy and cannot substitute for a covered behavioural health benefit.
  • The scripted, non-generative design that makes it safe also makes it feel rigid next to current conversational AI, and engagement drops off quickly once users hit the edges of the script.
  • Published evidence is short-horizon symptom change in selected populations, mostly young adults, with little evidence of durable benefit or effect at whole-population scale.
  • With consumer distribution gone, the remaining business depends on a small number of payer and provider contracts, so a buyer should assume real vendor continuity risk over a multi-year term.

Pricing, plan by plan

Flo

Free
  • Flo Premium$11.99/month
    • Free tier covers core cycle tracking, predictions and symptom logging
    • Premium adds deeper personalised insights and expert content, around $11.99 a month
    • Annual and lifetime purchase options typically offered at a lower effective rate

Woebot Health

On request
  • Woebot for payers and providers$undefined/year
    • Contracted per member per month or as a population licence
    • Sold to health plans and provider organisations, not to employers or individuals
    • No consumer purchase route since the app closed in June 2025

Which should you pick?

Choose Flo if

  • You need cycle and ovulation tracking.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want pregnancy mode.
Flo review

Choose Woebot Health if

  • You need scripted cbt dialogue.
  • You work on iOS, Android, Web.
  • You also want mood tracking.
Woebot Health review

Questions people ask

Is Flo or Woebot Health better?
Neither clearly leads. Flo starts at Free and Woebot Health at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flo or Woebot Health?
Flo has a free tier; the other does not. Paid plans start at Free for Flo and On request for Woebot Health.
Does Flo or Woebot Health run on more platforms?
Both run on iOS, Android, Web, so platform support will not decide this one for you.
Can I use Flo for free?
Yes. Flo has a free tier, so you can try it without paying. Woebot Health starts at On request.
What is Flo best used for?
Flo is most often used for someone tracking cycle and ovulation who wants to weigh app convenience against the sensitivity of the data being logged, a user in a jurisdiction with legal risk around reproductive health data who wants to check anonymous mode and current data sharing policy before logging pregnancy or fertility attempts, a buyer wanting to compare flo directly against clue on published data practices before choosing which app to trust with this information, someone who wants pregnancy tracking content alongside cycle tracking in one app rather than switching apps mid-pregnancy. Of those, someone tracking cycle and ovulation who wants to weigh app convenience against the sensitivity of the data being logged and a user in a jurisdiction with legal risk around reproductive health data who wants to check anonymous mode and current data sharing policy before logging pregnancy or fertility attempts are not what Woebot Health is typically brought in for.
What can Flo do that Woebot Health cannot?
Flo covers Cycle and ovulation tracking, Pregnancy mode, Anonymous Mode, Symptom and mood logging. Woebot Health covers Scripted CBT dialogue, Mood tracking, Crisis routing, Between-session support.

Answered from the vendors’ own pages

Flo: What happened with the FTC in 2021?

The US FTC alleged Flo Health shared sensitive health data, including pregnancy and menstruation details, with third parties like Facebook and Google despite promising to keep it private. Flo settled without admitting liability, agreeing to obtain consent for future sharing and to an independent privacy review.

Woebot Health: Is Woebot still available?

Not to consumers. The consumer app closed in June 2025. The company continues to offer the product to payers, providers and researchers.

Flo: What is Anonymous Mode?

A privacy setting Flo states disconnects entered health data from an identifiable profile. Check the current app and privacy policy for whether it is on by default or must be turned on manually, since this affects what data is linked to your identity.

Woebot Health: Is it FDA cleared?

No. It held Breakthrough Device designation but never obtained marketing authorisation, and the founder cited the cost of that pathway as the reason for closing the consumer app.

Flo: Is Flo free?

Core cycle tracking and predictions are free. Deeper personalised insights and expert content require Flo Premium.

Woebot Health: Is it generative AI?

Historically no. The dialogue is clinician-written and rule-based, a deliberate safety choice that limits how naturally it converses.

Woebot Health: What does the evidence show?

Randomised studies reported reduced depressive symptoms over short periods in selected populations, notably young adults. That is symptom change in a trial, not demonstrated population outcomes.

Share

Related pages

More on Flo

More on Woebot Health

Keep looking

Other head to heads