# prepSSM vs CTO SSM

The clearest difference is in-app purchases: prepSSM at none against CTO SSM's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CTO SSM sells 1 in-app purchase, starting at $24.99 per month. prepSSM asks for nothing beyond the download.

prepSSM ships an update every 3 weeks, CTO SSM fortnightly. The most recent releases landed on September 13, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | prepSSM | CTO SSM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (7 ratings)](https://appshunter.io/ios/app/prepssm/id1452631957/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 154 MB | 38 MB |
| Requires iOS | **14.0** | 15.6 |
| 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

### prepSSM

[App page](https://appshunter.io/ios/app/prepssm/id1452631957)

This platform offers preparation for a national specialization school entrance exam. It features weekly quizzes with detailed explanations and a national ranking. Free lessons are also available to all users.

**Highlights:** Weekly quizzes, Detailed explanations, National student ranking, Free lessons, Progress tracking, Cross-device compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### CTO SSM

[App page](https://appshunter.io/ios/app/cto-ssm/id6743671817)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abbonamento mensile. | $24.99 | per month |


## Frequently asked questions

### Is prepSSM free?

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

### Is CTO SSM free?

CTO SSM is free to download, with in-app purchases available.

### Do prepSSM or CTO SSM have ads?

Neither prepSSM nor CTO SSM shows ads.

### Which is updated more often, prepSSM or CTO SSM?

prepSSM ships an update every 3 weeks, and CTO SSM fortnightly. Most recently, prepSSM was updated on September 13, 2026 and CTO SSM on August 19, 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.*