# prepMIR vs CTO

The clearest difference is rating: prepMIR at 4.6 against CTO's 1.0. prepMIR also leads on ratings volume (10 vs 1). CTO's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

prepMIR holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: prepMIR has 10 ratings behind it against 1, so its average is the more settled of the two.

prepMIR ships an update every 3 weeks, CTO fortnightly. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | prepMIR | CTO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (10 ratings)](https://appshunter.io/ios/app/prepmir/id1527248161/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/cto/id1616881955/reviews) |
| Number of ratings | **10** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 152 MB | 49 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [ECNI](https://appshunter.io/developer/915067392) | [CTO Medicina](https://appshunter.io/developer/597003826) |

## What reviewers say

### prepMIR

[App page](https://appshunter.io/ios/app/prepmir/id1527248161)

Prepare for the Specialized Health Training entrance exam with a comprehensive and effective platform. Weekly free exams with commented answers help you track progress and national rankings. Practice with a vast array of mock tests and exercises, enhanced by a unique mental anchoring tool for optimized memory retention.

**Highlights:** Weekly free exams, Commented answers, National ranking, Extensive mock tests, Mental anchoring tool, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### CTO

[App page](https://appshunter.io/ios/app/cto/id1616881955)

This official app provides exclusive access for CTO personnel and enrolled MIR or EIR students. It mirrors the Campus CTO platform, offering features like attendance tracking and material management to support learning.

**Highlights:** Exclusive access for CTO personnel, Access for MIR/EIR students, Mirroring Campus CTO platform, Attendance control, Material management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is prepMIR free?

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

### Is CTO free?

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

### Which has better reviews, prepMIR or CTO?

prepMIR is rated higher. prepMIR averages 4.6 out of 5 from 10 ratings, while CTO averages 1.0 from 1 ratings.

### Do prepMIR or CTO have ads?

Neither prepMIR nor CTO shows ads.

### Which is updated more often, prepMIR or CTO?

prepMIR ships an update every 3 weeks, and CTO fortnightly. Most recently, prepMIR was updated on September 25, 2026 and CTO on September 10, 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.*