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Healthcare · head to head

Calm vs Lunit

Calm logo

Calm

Healthcare

Sleep, meditation and relaxation

From
Free
Rated
-
Full reviewWebsite
Lunit logo

Lunit

Healthcare

FDA cleared and CE marked AI for mammography, tomosynthesis and chest radiography

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; Lunit the regulatory permission differs by product and by region, and INSIGHT Risk has been filed with the FDA but not cleared, so a buyer who reads a corporate press release rather than the specific clearance for their product and jurisdiction will plan a deployment they cannot legally run.
  • They diverge on capability: Calm covers Sleep Stories, Lunit covers Lunit INSIGHT MMG.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Calm and Lunit actually diverge.

Attributes where Calm and Lunit differ
AttributeCalmLunit
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 Lunit

  • Lunit INSIGHT MMG
  • Lunit INSIGHT DBT
  • Lunit INSIGHT CXR
  • Volpara density assessment
  • Volpara RiskPathways
  • Volpara dose tracking
  • PACS and mammography workstation integration

What people use each for

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

Calm

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

Lunit

  • A national breast screening programme evaluating AI as a second reader to reduce double reading workload where two human readers are currently mandatednot Calm
  • A breast centre that moved to tomosynthesis and now has reading times it cannot staff, wanting detection support on DBT specificallynot Calm
  • An American breast imaging centre needing automated volumetric density assessment to meet patient density notification requirements, which is what Volpara is bought fornot Calm
  • A tuberculosis or lung screening programme in a high volume, radiologist scarce setting using chest radiography triage to prioritise filmsnot 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

Lunit

  • The regulatory permission differs by product and by region, and INSIGHT Risk has been filed with the FDA but not cleared, so a buyer who reads a corporate press release rather than the specific clearance for their product and jurisdiction will plan a deployment they cannot legally run.
  • Detection AI changes recall rates in screening, and the downstream cost of additional diagnostic workup lands on the programme rather than on the software budget, which is the cost most screening business cases omit.
  • Performance is sensitive to the mammography vendor and acquisition protocol, so published results from a Hologic estate do not transfer to a GE or Siemens estate without local validation the buyer must fund.
  • MMG, DBT and CXR are licensed separately and Volpara modules are separate again, so a breast centre wanting detection, density and risk pathways is assembling four line items rather than buying one product.
  • Using AI as a replacement for one of two human readers is a workforce and liability decision that regulators and professional bodies treat differently in each country, so the saving that justifies the purchase may not be permitted where you operate.

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

Lunit

On request
  • Lunit INSIGHT$undefined/year
    • Priced per study or per annual examination volume by product
    • MMG, DBT and CXR licensed separately
    • Volpara density and RiskPathways modules quoted separately

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 Lunit if

  • You need lunit insight mmg.
  • You also want lunit insight dbt.
Lunit review

Questions people ask

Is Calm or Lunit better?
Neither clearly leads. Calm starts at Free and Lunit at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Calm or Lunit?
Calm has a free tier; the other does not. Paid plans start at Free for Calm and On request for Lunit.
Does Calm or Lunit run on more platforms?
Calm runs on iOS, Android, Web. Lunit runs on Web.
Can I use Calm for free?
Yes. Calm has a free tier, so you can try it without paying. Lunit 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 Lunit is typically brought in for.
What can Calm do that Lunit cannot?
Calm covers Sleep Stories, Guided meditations, Daily Calm, Breathing exercises. Lunit covers Lunit INSIGHT MMG, Lunit INSIGHT DBT, Lunit INSIGHT CXR, Volpara density assessment.

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
Lunit: Is Lunit FDA cleared?

Yes for specific products. INSIGHT MMG, INSIGHT DBT and INSIGHT CXR Triage hold FDA 510(k) clearances. INSIGHT Risk, the five year risk prediction model, has been filed but was not cleared at the time of writing.

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
Lunit: Can Lunit replace a second human reader in screening?

That depends entirely on your jurisdiction and professional body guidance, not on the software. The CE mark permits clinical use; it does not authorise a workforce model.

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
Lunit: What did the Volpara acquisition add?

Volumetric breast density measurement, dose tracking and RiskPathways high risk programme management, which are the things American breast centres buy for density notification compliance rather than for detection.

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
Lunit: Is pricing published?

No. It is quoted per study or per annual volume, by product, with on premises and cloud priced differently.

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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