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Healthcare · head to head

Clue vs Rad AI

Clue logo

Clue

Healthcare

Period and cycle tracking app owned by German company Biowink, positioned around science based tracking and a published stance against sharing data with law enforcement

From
Free
Rated
-
Full reviewWebsite
Rad AI logo

Rad AI

Healthcare

Generative reporting and follow-up tracking for radiology, positioned outside the diagnostic device boundary

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Clue has a free tier, so it costs nothing to try first.
  • Each has a real cost: Clue clues stated policy on not sharing data with law enforcement without a valid legal process is the companys own published position and legal interpretation, not an independent guarantee, and it can still be compelled to comply with a legally binding request under EU or other applicable law.; Rad AI the products are not FDA cleared devices and are not intended to be, so any claim that Rad AI improves diagnostic accuracy is unsupported; what has been measured is reporting speed and follow-up completion, not detection.
  • They diverge on capability: Clue covers Cycle and symptom tracking, Rad AI covers Impressions.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Clue and Rad AI actually diverge.

Attributes where Clue and Rad AI differ
AttributeClueRad AI
Starting priceFreeOn request
Pricing modelFree with a Plus subscriptionquote
Free tierYesNo
PlatformsiOS, AndroidWindows, Web, Cloud

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 Clue

  • Cycle and symptom tracking
  • Cycle insights and patterns
  • Research partnerships
  • EU-based data hosting
  • Fertility and conception mode
  • Perimenopause and other life stage tracking

Only in Rad AI

  • Impressions
  • Reporting
  • Continuity
  • Style learning
  • Omni Reconcile
  • PACS and dictation embedding
  • Patient outreach workflows
  • Audit reporting

What people use each for

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

Clue

  • Someone specifically weighing data jurisdiction and legal exposure when choosing a period tracking app, given Clues EU basis and published stance on law enforcement requestsnot Rad AI
  • A user who wants cycle tracking positioned around scientific research partnerships rather than lifestyle or community contentnot Rad AI
  • A buyer comparing Clue directly against Flo on current published privacy policy language before choosing which app to trustnot Rad AI
  • Someone tracking perimenopause or other non-standard cycle stages that some period apps do not support wellnot Rad AI

Rad AI

  • A private radiology practice whose read volume has grown faster than it can recruit and that wants dictation time per study reduced without changing PACSnot Clue
  • A health system losing revenue and exposing itself to liability because recommended follow-up imaging on incidental findings is never bookednot Clue
  • A radiology department standardising impression quality across a mixed group of employed and locum radiologistsnot Clue
  • A group deploying an AI tool that must not trigger a device validation programme, because governance capacity is already consumed by a triage algorithm rolloutnot Clue

Where each one falls short

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

Clue

  • Clues stated policy on not sharing data with law enforcement without a valid legal process is the companys own published position and legal interpretation, not an independent guarantee, and it can still be compelled to comply with a legally binding request under EU or other applicable law.
  • Deeper cycle insights and predictions, the features most likely to justify tracking in the first place, are gated behind the Clue Plus subscription rather than fully free.
  • Being a smaller company than some competitors, Clue has less capital and legal resource to contest large-scale legal requests than a larger, better-funded rival might, despite its stated intent to do so.
  • Research partnerships using anonymised user data, while opt-in, still mean user-derived data can be used in ways beyond direct app functionality, and users should check current consent settings.
  • Cycle predictions rely on self-reported data and general population models, so accuracy for irregular cycles or specific medical conditions remains limited regardless of which app is used.

Rad AI

  • The products are not FDA cleared devices and are not intended to be, so any claim that Rad AI improves diagnostic accuracy is unsupported; what has been measured is reporting speed and follow-up completion, not detection.
  • Generated impressions require radiologist review and signature, so the time saving evaporates in any group whose radiologists rewrite the draft rather than edit it, and adoption varies sharply by individual.
  • It is bound to your dictation platform, so a group planning to move off PowerScribe should sequence that decision first or expect to redo the Rad AI integration.
  • Continuity depends on the quality of recommendation language in historical reports, and departments with inconsistent phrasing get poor recall until reporting practice is standardised.
  • Pricing is not published and is structured per radiologist or per study depending on the product mix, which makes it hard to compare against image-analysis AI vendors that price per scan.

Pricing, plan by plan

Clue

Free
  • Clue Plus$9.99/month
    • Free tier covers core cycle tracking, logging and basic predictions
    • Clue Plus adds deeper cycle insights, extended predictions and personalised content
    • Annual Plus plans typically offered at a lower effective monthly rate

Rad AI

On request
  • Rad AI platform$undefined/year
    • Priced per radiologist or per study volume depending on product and contract
    • Impressions, Reporting and Continuity licensed separately
    • Annual subscription with implementation and integration scoped per site

Which should you pick?

Choose Clue if

  • You need cycle and symptom tracking.
  • You want to start without paying.
  • You work on iOS, Android.
  • You also want cycle insights and patterns.
Clue review

Choose Rad AI if

  • You need impressions.
  • You work on Windows, Web, Cloud.
  • You also want reporting.
Rad AI review

Questions people ask

Is Clue or Rad AI better?
Neither clearly leads. Clue starts at Free and Rad AI at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Clue or Rad AI?
Clue has a free tier; the other does not. Paid plans start at Free for Clue and On request for Rad AI.
Does Clue or Rad AI run on more platforms?
Clue runs on iOS, Android. Rad AI runs on Windows, Web, Cloud.
Can I use Clue for free?
Yes. Clue has a free tier, so you can try it without paying. Rad AI starts at On request.
What is Clue best used for?
Clue is most often used for someone specifically weighing data jurisdiction and legal exposure when choosing a period tracking app, given clues eu basis and published stance on law enforcement requests, a user who wants cycle tracking positioned around scientific research partnerships rather than lifestyle or community content, a buyer comparing clue directly against flo on current published privacy policy language before choosing which app to trust, someone tracking perimenopause or other non-standard cycle stages that some period apps do not support well. Of those, someone specifically weighing data jurisdiction and legal exposure when choosing a period tracking app, given clues eu basis and published stance on law enforcement requests and a user who wants cycle tracking positioned around scientific research partnerships rather than lifestyle or community content are not what Rad AI is typically brought in for.
What can Clue do that Rad AI cannot?
Clue covers Cycle and symptom tracking, Cycle insights and patterns, Research partnerships, EU-based data hosting. Rad AI covers Impressions, Reporting, Continuity, Style learning.

Answered from the vendors’ own pages

Clue: Does Clue share data with law enforcement?

Clue publishes a policy stating it does not share health data with law enforcement or public authorities without a legally binding request and states it will challenge requests it considers improper. This is the companys stated position; verify the current policy directly for specifics.

Rad AI: Is Rad AI FDA cleared?

No, and by design. The products draft text and manage follow-up workflow rather than interpreting images, so they fall outside the device pathway. Treat any diagnostic accuracy claim with scepticism.

Clue: Why does Clue emphasise being an EU company?

Clue operates under EU GDPR data protection rules and states this legal basis makes it harder for authorities outside the EU, including US authorities, to compel data disclosure than for a company based in the US.

Rad AI: Does the radiologist still sign the report?

Yes. Output is a draft that the radiologist reviews and signs; nothing is released autonomously.

Clue: Is Clue free?

Core cycle tracking, logging and basic predictions are free. Deeper insights and extended predictions require Clue Plus.

Rad AI: Which product actually pays for itself?

Continuity has the clearest financial case, because recommended follow-up imaging that gets completed is billable work that currently does not happen.

Rad AI: Will it work with our dictation system?

It is deepest with Nuance PowerScribe. Confirm your specific dictation and PACS combination before contracting, because integration depth is the main deployment variable.

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