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Healthcare · head to head

Flo vs Meru 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
Meru Health logo

Meru Health

Healthcare

Twelve week therapist led mental health programme combining an app, a clinician and HRV biofeedback

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.; Meru Health the programme is twelve weeks and then it ends, which fits an episode of treatment but not a chronic condition needing maintenance, so relapse after week twelve lands on whatever pathway the buyer has funded next, if any.
  • They diverge on capability: Flo covers Cycle and ovulation tracking, Meru Health covers Twelve week structured programme.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where Flo and Meru Health differ
AttributeFloMeru Health
Starting priceFreeOn request
Pricing modelFree with a Premium subscriptionquote
Free tierYesNo
PlatformsiOS, Android, WebWeb, iOS, Android

Identical on both: 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 Meru Health

  • Twelve week structured programme
  • Licensed therapist
  • Psychiatric consultation
  • HRV biofeedback device
  • Daily in app practice
  • Meru Health Advanced
  • Payer contracting
  • Outcome measurement

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 Meru 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 Meru Health
  • A buyer wanting to compare Flo directly against Clue on published data practices before choosing which app to trust with this informationnot Meru Health
  • Someone who wants pregnancy tracking content alongside cycle tracking in one app rather than switching apps mid-pregnancynot Meru Health

Meru Health

  • A health plan that wants a mental health intervention it can underwrite as a bounded episode rather than an open ended benefitnot Flo
  • An employer whose staff need treatment rather than wellbeing content, with a therapist and a prescriber in one pathwaynot Flo
  • A member who needs medication review alongside therapy, which most app based mental health products cannot providenot Flo
  • A health system seeking to offload moderate depression and anxiety from a psychiatry service with long waitsnot 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.

Meru Health

  • The programme is twelve weeks and then it ends, which fits an episode of treatment but not a chronic condition needing maintenance, so relapse after week twelve lands on whatever pathway the buyer has funded next, if any.
  • Whether the employer, the health plan or the member pays depends on the contract route, and members frequently do not know which applies to them until they receive a bill or discover they do not.
  • A structured programme demands daily engagement, and members who cannot sustain that get much less than the outcome data implies, because the published results reflect members who completed.
  • The heart rate variability device is a differentiator but also a logistics and support burden, adding shipping, returns and device support to what would otherwise be a software deployment.
  • Meru is small relative to Lyra, Spring Health and the large payer owned behavioural health offerings, so an employer choosing it takes on more vendor concentration risk in a category that has seen frequent consolidation.

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

Meru Health

On request
  • Meru Health$undefined/year
    • Contracted per completed programme or per member per month depending on buyer type
    • Health plan contracts bill differently from employer contracts
    • Member cost sharing depends on whether access comes via insurance or an employer benefit

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 Meru Health if

  • You need twelve week structured programme.
  • You work on Web, iOS, Android.
  • You also want licensed therapist.
Meru Health review

Questions people ask

Is Flo or Meru Health better?
Neither clearly leads. Flo starts at Free and Meru Health at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flo or Meru Health?
Flo has a free tier; the other does not. Paid plans start at Free for Flo and On request for Meru Health.
Does Flo or Meru Health run on more platforms?
Flo runs on iOS, Android, Web. Meru Health runs on Web, iOS, Android.
Can I use Flo for free?
Yes. Flo has a free tier, so you can try it without paying. Meru 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 Meru Health is typically brought in for.
What can Flo do that Meru Health cannot?
Flo covers Cycle and ovulation tracking, Pregnancy mode, Anonymous Mode, Symptom and mood logging. Meru Health covers Twelve week structured programme, Licensed therapist, Psychiatric consultation, HRV biofeedback device.

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.

Meru Health: Is Meru Health still operating?

Yes. It launched Meru Health Advanced in May 2026 and expanded its Harvard Pilgrim Health Care collaboration in 2025. It has not wound down.

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.

Meru Health: How long is the programme?

Around twelve weeks. It is a bounded treatment episode rather than open ended therapy, which is why health plans will contract for it.

Flo: Is Flo free?

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

Meru Health: Who pays?

It depends on the contract. Meru sells to both health plans and employers, and member cost sharing differs between those routes. Confirm which applies before enrolling.

Meru Health: Does it include medication?

Psychiatric consultation is part of the programme where medication is indicated, which distinguishes it from app plus coaching products that cannot prescribe.

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