# sofatutor vs Sdui

The clearest difference is in-app purchases: Sdui at none against sofatutor's 5. Sdui also leads on rating (4.5 vs 4.2). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. sofatutor sells 5 in-app purchases, starting at $39.99 per month. Sdui asks for nothing beyond the download.

Sdui holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 136 and 53 respectively. Written reviews point the same way: 80% of sofatutor's written reviews are positive against 82% of Sdui's.

sofatutor ships an update every 6 weeks, Sdui every 5 weeks. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | sofatutor | Sdui |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (136 ratings)](https://appshunter.io/ios/app/sofatutor/id597942322/reviews) | **[4.5 (53 ratings)](https://appshunter.io/ios/app/sdui/id1145264453/reviews)** |
| Number of ratings | **136** | 53 |
| Positive reviews | 80.3% of reviews | **81.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 52 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [sofatutor GmbH](https://appshunter.io/developer/597942325) | [Sdui GmbH](https://appshunter.io/developer/1034926222) |

## What reviewers say

### sofatutor

[App page](https://appshunter.io/ios/app/sofatutor/id597942322)

This app offers a fun and engaging way for students to learn school subjects through short video tutorials, interactive exercises, and a learning game. It provides homework help from real teachers and printable worksheets to reinforce learning and improve grades.

**Highlights:** Bite-sized tutorial videos, Interactive exercises, Printable worksheets, Learning game (Sofahero), 24-hour homework help, Progress tracking

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 month | $39.99 | per month |
| Premium 3 Months | $99.99 | per 3 months |
| Premium 6 months | $179.99 | per 6 months |
| Premium 12 months | $239.99 | per year |
| Premium 12 months | $299.99 | per year |


### Sdui

[App page](https://appshunter.io/ios/app/sdui/id1145264453)

This app streamlines communication and organization for schools and daycare centers. It connects teachers, educators, parents, and children through a GDPR-compliant platform, simplifying daily tasks and fostering collaboration in education.

**Highlights:** Secure chats, School news, Surveys, Digital class register, Sick notifications, Unified platform

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is sofatutor free?

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

### Is Sdui free?

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

### Which has better reviews, sofatutor or Sdui?

Sdui is rated higher. sofatutor averages 4.2 out of 5 from 136 ratings, while Sdui averages 4.5 from 53 ratings.

### Do sofatutor or Sdui have ads?

Neither sofatutor nor Sdui shows ads.

### Which is updated more often, sofatutor or Sdui?

sofatutor ships an update every 6 weeks, and Sdui every 5 weeks. Most recently, sofatutor was updated on September 23, 2026 and Sdui on September 21, 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.*