# Soff Seller vs Ustoz AI

The clearest difference is in-app purchases: Soff Seller at none against Ustoz AI's 4. Ustoz AI's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and ads there is nothing between them.

Both are free to download. Ustoz AI sells 4 in-app purchases, starting at $2.99 per month. Soff Seller asks for nothing beyond the download.

Soff Seller ships an update every 3 weeks, Ustoz AI every 2 weeks. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Soff Seller | Ustoz AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (60 ratings)](https://appshunter.io/ios/app/ustoz-ai/id6504815934/reviews)** |
| Number of ratings | — | **60** |
| Positive reviews | — | 90.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 181 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alisher Shamuratov](https://appshunter.io/developer/1731666491) | ["Ustoz edu" nodavlat ta'lim muassasasi](https://appshunter.io/developer/1776975638) |

## What reviewers say

### Soff Seller

[App page](https://appshunter.io/ios/app/soff-seller/id6502236741)

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

**In-app purchases:** none


### Ustoz AI

[App page](https://appshunter.io/ios/app/ustoz-ai/id6504815934)

This app offers free courses on modern professions and university entrance exam subjects. Learn from advanced instructors with engaging video lessons and reinforce your knowledge with tests. Earn certificates upon successful completion to start a new career.

**Highlights:** Free courses on modern professions, University entrance exam preparation, Advanced instructor-led lessons, Engaging video content, Knowledge reinforcement tests, Certificates upon course completion

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ustoz AI Premium (1 month) | $2.99 | per month |
| Ustoz AI Premium (3 months) | $7.99 | per 3 months |
| Uztoz AI Premium | $11.99 | per 3 months |
| Premium subscription for 12 months | $34.99 | per year |


## Frequently asked questions

### Is Soff Seller free?

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

### Is Ustoz AI free?

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

### Do Soff Seller or Ustoz AI have ads?

Neither Soff Seller nor Ustoz AI shows ads.

### Which is updated more often, Soff Seller or Ustoz AI?

Soff Seller ships an update every 3 weeks, and Ustoz AI every 2 weeks. Most recently, Soff Seller was updated on October 25, 2026 and Ustoz AI on October 30, 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.*