# CalcificAID vs Clinical Tree

The clearest difference is in-app purchases: CalcificAID at none against Clinical Tree's 10. CalcificAID also leads on review sentiment (100% vs 80%). Clinical Tree's advantage is ads (none vs shown) and update cadence (monthly vs every 37 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Clinical Tree sells 10 one-off in-app purchases. CalcificAID asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for CalcificAID against 5.0 for Clinical Tree. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews are what separate them: 100% of CalcificAID's written reviews are positive against 80% of Clinical Tree's.

CalcificAID ships an update every 37 months, Clinical Tree monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | CalcificAID | Clinical Tree |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/calcificaid/id1461295720/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/clinical-tree/id6444689971/reviews) |
| Number of ratings | 4 | **7** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 37 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 57 MB | 83 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Icahn School of Medicine at Mount Sinai](https://appshunter.io/developer/972625667) | [Duc Nguyen](https://appshunter.io/developer/1698359793) |

## What reviewers say

### CalcificAID

[App page](https://appshunter.io/ios/app/calcificaid/id1461295720)

This free educational tool guides medical professionals through managing calcified coronary lesions. It provides step-by-step illustrations for identifying and treating calcification using various atherectomy techniques before stenting.

**Highlights:** Step-by-step illustrations, Coronary calcification identification, Treatment of calcified lesions, Rotational atherectomy guidance, Orbital atherectomy guidance, Laser atherectomy guidance, Intravascular lithotripsy (IVL) guidance, Atherotomy guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### Clinical Tree

[App page](https://appshunter.io/ios/app/clinical-tree/id6444689971)

Access a vast medical knowledge base with quick answers to health questions. Explore detailed information on symptoms, diseases, and treatments across numerous clinical specialties. Stay updated with daily new content and specialized databases.

**Highlights:** Instant medical answer search, Information on symptoms and treatments, Daily updated articles and videos, Over 1,000,000 specialized databases, Covers numerous clinical specialties, Aids students and teachers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Single 9 package | $8.99 | one-time |
| Single 15 package | $14.99 | one-time |
| 6 month package | $19.99 | one-time |
| Single 19 package | $19.99 | one-time |
| Single 25 package | $24.99 | one-time |
| 1 year package | $29.99 | one-time |
| Tzu N package | $29.99 | one-time |
| Tne N package | $39.99 | one-time |
| Nne N package | $99.99 | one-time |
| Lifetime package | $99.99 | one-time |


## Frequently asked questions

### Is CalcificAID free?

CalcificAID is free to download, with no in-app purchases.

### Is Clinical Tree free?

Clinical Tree is free to download, with in-app purchases available.

### Which has better reviews, CalcificAID or Clinical Tree?

CalcificAID and Clinical Tree are both rated 5.0 out of 5 on the App Store, from 4 and 7 ratings respectively.

### Do CalcificAID or Clinical Tree have ads?

CalcificAID shows ads; Clinical Tree does not.

### Which is updated more often, CalcificAID or Clinical Tree?

CalcificAID ships an update every 37 months, and Clinical Tree monthly. Most recently, CalcificAID was updated on November 3, 2026 and Clinical Tree on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*