# CTisus iPearls vs misTMJ

The clearest difference is update cadence: misTMJ at monthly against CTisus iPearls's every 6 months. misTMJ also leads on iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CTisus iPearls ships an update every 6 months, misTMJ monthly. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | CTisus iPearls | misTMJ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (41 ratings)](https://appshunter.io/ios/app/ctisus-ipearls/id687350624/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free | — |
| Size | 137 MB | 594 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Elliot Fishman](https://appshunter.io/developer/399024444) | [Himalaya Computing](https://appshunter.io/developer/1205321932) |

## What reviewers say

### CTisus iPearls

[App page](https://appshunter.io/ios/app/ctisus-ipearls/id687350624)

This app provides diagnostic radiologists with valuable insights and facts, known as "pearls," to aid in correct diagnoses and understanding of radiologic images. It organizes these pearls across 28 popular categories and includes a search feature for easy access to thousands of pieces of knowledge.

**Highlights:** Diagnostic radiology pearls, Thousands of insights, 28 popular categories, Search functionality, Radiologic image understanding

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

**In-app purchases:** none


### misTMJ

[App page](https://appshunter.io/ios/app/mistmj/id1592838220)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CTisus iPearls free?

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

### Is misTMJ free?

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

### Do CTisus iPearls or misTMJ have ads?

Neither CTisus iPearls nor misTMJ shows ads.

### Which is updated more often, CTisus iPearls or misTMJ?

CTisus iPearls ships an update every 6 months, and misTMJ monthly. Most recently, CTisus iPearls was updated on October 23, 2026 and misTMJ on October 27, 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.*