# Prept vs Sotto

The clearest difference is in-app purchases: Sotto at none against Prept's 2. Sotto also leads on device support (3 vs 1). Prept's advantage is iOS requirement (17.0 vs 26.4). On price, update cadence and ads there is nothing between them.

Both are free to download. Prept sells 2 in-app purchases, starting at $9.99 per month. Sotto asks for nothing beyond the download.

Prept ships an update every 10 days, Sotto every 6 days. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Prept | Sotto |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 6 days** |
| Size | 4 MB | 10 MB |
| Requires iOS | **17.0** | 26.4 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sarosh Mirza](https://appshunter.io/developer/1363917258) | [Sang Hoon Yi](https://appshunter.io/developer/1821915335) |

## What reviewers say

### Prept

[App page](https://appshunter.io/ios/app/prept-ai-interview-practice/id6769569684)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prept Pro Monthly | $9.99 | per month |
| Prept Pro Annual | $59.99 | per year |


### Sotto

[App page](https://appshunter.io/ios/app/sotto-interview-copilot/id6786720802)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Prept free?

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

### Is Sotto free?

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

### Do Prept or Sotto have ads?

Neither Prept nor Sotto shows ads.

### Which is updated more often, Prept or Sotto?

Prept ships an update every 10 days, and Sotto every 6 days. Most recently, Prept was updated on October 4, 2026 and Sotto on October 6, 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.*