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Healthcare · head to head

Calm vs PathAI

Calm logo

Calm

Healthcare

Sleep, meditation and relaxation

From
Free
Rated
-
Full reviewWebsite
PathAI logo

PathAI

Healthcare

Digital pathology image management with an FDA cleared platform for primary diagnosis

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Calm has a free tier, so it costs nothing to try first.
  • Each has a real cost: Calm free tier is severely limited, with almost all content requiring payment; PathAI aISight is labelled research use only and cannot be used for primary diagnosis; only AISight Dx carries the FDA clearance and CE-IVD mark, and laboratories regularly buy the wrong configuration and discover they cannot sign out on it.
  • They diverge on capability: Calm covers Sleep Stories, PathAI covers AISight image management.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Calm and PathAI actually diverge.

Attributes where Calm and PathAI differ
AttributeCalmPathAI
Starting priceFreeOn request
Pricing modelUnknownquote
Free tierYesNo
PlatformsiOS, Android, WebWeb
Founded2012Unknown

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 Calm

  • Sleep Stories
  • Guided meditations
  • Daily Calm
  • Breathing exercises
  • Calm Body stretching
  • Apple Health
  • Apple Watch
  • Samsung Health

Only in PathAI

  • AISight image management
  • AISight Dx
  • Scanner interoperability
  • Case and worklist management
  • AI algorithm deployment
  • Biopharmaceutical research tooling
  • LIS integration

What people use each for

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

Calm

  • Workout trackingnot PathAI
  • Nutrition managementnot PathAI
  • Health monitoringnot PathAI
  • Fitness coachingnot PathAI
  • Wellness improvementnot PathAI

PathAI

  • An academic medical centre going digital for primary diagnosis that needs the FDA cleared AISight Dx configuration rather than the research labelled versionnot Calm
  • A reference laboratory consolidating subspecialty sign out across sites so a specialist pathologist can read cases from any locationnot Calm
  • A pharmaceutical company needing consistent quantitative scoring of trial biopsies across many sites and readersnot Calm
  • A laboratory with a mixed scanner estate that needs one image management layer rather than each scanner vendor viewernot Calm

Where each one falls short

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

Calm

  • Free tier is severely limited, with almost all content requiring payment
  • Only one meditation per day included in free tier (Daily Calm)
  • Annual pricing is among the highest in the meditation app category
  • Less extensive free content library compared to Insight Timer (which has 100,000+ free meditations)
  • Limited customization of meditation sessions; mostly follows Calm's curated content

PathAI

  • AISight is labelled research use only and cannot be used for primary diagnosis; only AISight Dx carries the FDA clearance and CE-IVD mark, and laboratories regularly buy the wrong configuration and discover they cannot sign out on it.
  • The software licence is usually the smallest line in a digital pathology project, behind scanners, storage and network capacity, so a business case built around the software cost understates the real investment by a wide margin.
  • Whole slide images are very large, so a laboratory that does not model storage growth and retention policy from the start faces storage costs that grow faster than case volume and dominate the renewal.
  • Clinical validation is required per subspecialty rather than once for the platform, which means dermatopathology, gastrointestinal and breast each need their own concordance study and pathologist time before go live.
  • PathAI competes against pathology incumbents that also sell the scanners, and a laboratory buying an independent image management layer takes on the integration risk between scanner vendor and software vendor itself.

Pricing, plan by plan

Calm

Free
  • FreeFree
    • Daily Calm
    • Select Sleep Stories
    • 1 breathing exercise
  • Premium Monthly$12.99/month
    • All content unlocked
    • Sleep Stories
    • Masterclasses
  • Premium Annual$69.99/year
    • All content unlocked
    • Sleep Stories
    • Masterclasses
  • Family Plan$99.99/year
    • Up to 6 accounts
    • All Premium content
    • Separate customization per member

PathAI

On request
  • AISight$undefined/year
    • Priced by annual slide or case volume and by pathologist seats
    • AISight Dx, the clinically cleared configuration, quoted separately from research use AISight
    • Image storage priced by capacity and retention policy

Which should you pick?

Choose Calm if

  • You need sleep stories.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want guided meditations.
Calm review

Choose PathAI if

  • You need aisight image management.
  • You also want aisight dx.
PathAI review

Questions people ask

Is Calm or PathAI better?
Neither clearly leads. Calm starts at Free and PathAI at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Calm or PathAI?
Calm has a free tier; the other does not. Paid plans start at Free for Calm and On request for PathAI.
Does Calm or PathAI run on more platforms?
Calm runs on iOS, Android, Web. PathAI runs on Web.
Can I use Calm for free?
Yes. Calm has a free tier, so you can try it without paying. PathAI starts at On request.
What is Calm best used for?
Calm is most often used for workout tracking, nutrition management, health monitoring, fitness coaching. Of those, workout tracking and nutrition management are not what PathAI is typically brought in for.
What can Calm do that PathAI cannot?
Calm covers Sleep Stories, Guided meditations, Daily Calm, Breathing exercises. PathAI covers AISight image management, AISight Dx, Scanner interoperability, Case and worklist management.

Answered from the vendors’ own pages

Calm: What does Calm's free tier include?

The free plan includes 1 breathing exercise, Day 1 of programs, select Sleep Stories, and Scenes, plus the famous Daily Calm feature and bedtime stories. Most content is locked behind the paid tier.

Source
PathAI: What is the difference between AISight and AISight Dx?

AISight is for research use only and not for clinical diagnostic use. AISight Dx received FDA 510(k) clearance in June 2025 for primary diagnosis and is CE-IVD marked in the EEA, UK and Switzerland. Only the Dx configuration can be used to sign out cases.

Calm: What is included in Calm Premium?

Calm Premium (all paid tiers are identical) includes The Daily Calm, Sleep Stories narrated by celebrities, exclusive music playlists, masterclasses taught by experts, Daily Move video lessons for stretching and mindful movement, and the entire content library.

Source
PathAI: Can we use our existing scanners?

Yes. AISight is designed to ingest images from multiple whole slide scanner vendors, which is one of the main reasons laboratories choose an independent image management layer.

Calm: How much does Calm Premium cost?

Monthly subscription is $12.99/month, annual is $69.99-$79.99/year, Family Plan is $99.99/year (includes 1 Admin + 5 Members), and lifetime membership is available as a one-time payment.

Source
PathAI: Do the AI algorithms carry the same clearance as the platform?

No. The platform clearance covers image management for primary diagnosis. Individual algorithms have their own labelling, and many are research use only. Check each one separately.

Calm: Does Calm offer pricing for organizations or teams?

Yes. Calm offers organizational plans for groups of 5-300 people with per-seat pricing based on total 'covered lives.' Larger groups receive deeper discounts. Pricing is significantly reduced compared to individual subscriptions.

Source
PathAI: Is pricing published?

No. It is quoted by slide or case volume, pathologist seats and storage, with the clinically cleared configuration priced separately.

Calm: Does Calm work offline?

Calm's app functions offline for already-downloaded content. Downloaded Sleep Stories, meditations, and Music programs can be accessed without an internet connection.

Source
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