Is Aidoc or Calm better?

Neither clearly leads. Aidoc starts at On request and Calm at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Aidoc or Calm?

Calm has a free tier; the other does not. Paid plans start at On request for Aidoc and Free for Calm.

Does Aidoc or Calm run on more platforms?

Aidoc runs on Web, iOS, Android. Calm runs on iOS, Android, Web.

Can I use Calm for free?

Yes. Calm has a free tier, so you can try it without paying. Aidoc starts at On request.

What is Aidoc best used for?

Aidoc is most often used for a regional stroke centre that wants large vessel occlusion flagged and the neurointervention team notified before the radiologist dictates, a trauma centre wanting cervical spine fracture and intra abdominal free gas prioritised in an overnight queue read by one on call radiologist, an oncology imaging programme that wants incidental pulmonary embolism caught on staging cts ordered for a different question, a health system that has bought ai from several vendors and wants one pacs integration through aios rather than one integration per algorithm. Of those, a regional stroke centre that wants large vessel occlusion flagged and the neurointervention team notified before the radiologist dictates and a trauma centre wanting cervical spine fracture and intra abdominal free gas prioritised in an overnight queue read by one on call radiologist are not what Calm is typically brought in for.

What can Aidoc do that Calm cannot?

Aidoc covers Triage and notification, Intracranial haemorrhage, Pulmonary embolism, Large vessel occlusion. Calm covers Sleep Stories, Guided meditations, Daily Calm, Breathing exercises.

Healthcare · head to head

Aidoc vs Calm

Aidoc

Healthcare

FDA cleared radiology AI for triage and notification of time critical findings

From: On request
Rated: -

Full review Website

Calm

Healthcare

Sleep, meditation and relaxation

From: Free
Rated: -

Full review Website

The short version

Only Calm has a free tier, so it costs nothing to try first.
Each has a real cost: Aidoc the clearances are for triage and notification in the CADt category, so the software may reorder a worklist but may not deliver a diagnosis or replace a read, and business cases built on reduced radiologist workload do not survive contact with the regulatory wording.; Calm free tier is severely limited, with almost all content requiring payment
They diverge on capability: Aidoc covers Triage and notification, Calm covers Sleep Stories.
Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Aidoc and Calm actually diverge.

Attributes where Aidoc and Calm differ
Attribute	Aidoc	Calm
Starting price	On request	Free
Pricing model	quote	Unknown
Free tier	No	Yes
Platforms	Web, iOS, Android	iOS, Android, Web
Founded	Unknown	2012

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 Aidoc

Triage and notification
Intracranial haemorrhage
Pulmonary embolism
Large vessel occlusion
Pneumothorax on X-ray
aiOS platform
Clinical workflow notifications

Only in Calm

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

What people use each for

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

Aidoc

A regional stroke centre that wants large vessel occlusion flagged and the neurointervention team notified before the radiologist dictatesnot Calm
A trauma centre wanting cervical spine fracture and intra abdominal free gas prioritised in an overnight queue read by one on call radiologistnot Calm
An oncology imaging programme that wants incidental pulmonary embolism caught on staging CTs ordered for a different questionnot Calm
A health system that has bought AI from several vendors and wants one PACS integration through aiOS rather than one integration per algorithmnot Calm

Calm

Workout trackingnot Aidoc
Nutrition managementnot Aidoc
Health monitoringnot Aidoc
Fitness coachingnot Aidoc
Wellness improvementnot Aidoc

Where each one falls short

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

Aidoc

The clearances are for triage and notification in the CADt category, so the software may reorder a worklist but may not deliver a diagnosis or replace a read, and business cases built on reduced radiologist workload do not survive contact with the regulatory wording.
Triage algorithms are tuned for sensitivity, so false positives are routine, and each one interrupts a radiologist. Sites that do not measure positive predictive value in their own case mix see clinician trust erode within months.
Pricing is per algorithm and per study volume with no published rate card, so the cost of a multi algorithm deployment escalates sharply and cannot be benchmarked before a sales conversation.
The clinical benefit accrues to stroke, trauma and cardiology service lines while the cost usually lands in the radiology or IT budget, which makes internal funding harder than the return on investment slides suggest.
Performance depends on scanner protocols and reconstruction settings, so results validated at one site do not transfer, and each deployment needs local validation work that is rarely budgeted for.

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

Pricing, plan by plan

Aidoc

On request

Aidoc$undefined/year
- Annual subscription priced by algorithm and by study volume
- aiOS platform integration licensed separately from individual algorithms
- Multi algorithm bundles negotiated for enterprise deployments

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

Which should you pick?

Choose Aidoc if

You need triage and notification.
You work on Web, iOS, Android.
You also want intracranial haemorrhage.

Aidoc review

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

Questions people ask

Is Aidoc or Calm better?: Neither clearly leads. Aidoc starts at On request and Calm at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aidoc or Calm?: Calm has a free tier; the other does not. Paid plans start at On request for Aidoc and Free for Calm.
Does Aidoc or Calm run on more platforms?: Aidoc runs on Web, iOS, Android. Calm runs on iOS, Android, Web.
Can I use Calm for free?: Yes. Calm has a free tier, so you can try it without paying. Aidoc starts at On request.
What is Aidoc best used for?: Aidoc is most often used for a regional stroke centre that wants large vessel occlusion flagged and the neurointervention team notified before the radiologist dictates, a trauma centre wanting cervical spine fracture and intra abdominal free gas prioritised in an overnight queue read by one on call radiologist, an oncology imaging programme that wants incidental pulmonary embolism caught on staging cts ordered for a different question, a health system that has bought ai from several vendors and wants one pacs integration through aios rather than one integration per algorithm. Of those, a regional stroke centre that wants large vessel occlusion flagged and the neurointervention team notified before the radiologist dictates and a trauma centre wanting cervical spine fracture and intra abdominal free gas prioritised in an overnight queue read by one on call radiologist are not what Calm is typically brought in for.
What can Aidoc do that Calm cannot?: Aidoc covers Triage and notification, Intracranial haemorrhage, Pulmonary embolism, Large vessel occlusion. Calm covers Sleep Stories, Guided meditations, Daily Calm, Breathing exercises.

Answered from the vendors’ own pages

Aidoc: Is Aidoc FDA cleared?

Yes, it holds multiple 510(k) clearances, but they are for computer aided triage and notification. It may prioritise a worklist and notify a team. It may not provide a diagnostic interpretation or replace a radiologist read.

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

Aidoc: Does it reduce radiologist workload?

No. Every study still needs a full read. The benefit is in the order studies are read and how quickly a receiving specialty is activated, not in reading fewer studies.

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

Aidoc: Can I run other vendors AI through it?

Yes, that is what the aiOS platform layer is for, and for health systems with several AI vendors it is often the main reason to buy Aidoc at all.

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

Aidoc: Is pricing published?

No. It is quoted per algorithm and by annual study volume, and enterprise bundles are negotiated case by case.

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

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

Aidoc vs Calm

Aidoc

Calm

The short version

Where they differ

What each one covers

Only in Aidoc

Only in Calm

What people use each for

Aidoc

Calm

Where each one falls short

Aidoc

Calm

Pricing, plan by plan

Aidoc

Calm

Which should you pick?

Choose Aidoc if

Choose Calm if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Aidoc

More on Calm

Keep looking

Other head to heads