# Sdui vs BiBox

The clearest difference is review sentiment: Sdui at 82% against BiBox's 24%. Sdui also leads on update cadence (every 5 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Sdui ships an update every 5 weeks, BiBox every 3 months. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Sdui | BiBox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (53 ratings)](https://appshunter.io/ios/app/sdui/id1145264453/reviews)** | — |
| Number of ratings | **53** | — |
| Positive reviews | **81.8% of reviews** | 23.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 52 MB | 28 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sdui GmbH](https://appshunter.io/developer/1034926222) | [Westermann Digital GmbH](https://appshunter.io/developer/1171669560) |

## What reviewers say

### 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


### BiBox

[App page](https://appshunter.io/ios/app/bibox/id1478408158)

This digital learning system offers interactive content, offline access to educational materials, and tools for teachers to prepare and deliver lessons. Students can access digital textbooks and assigned materials individually or as a class.

**Highlights:** Interactive digital textbooks, Offline access to content, Lesson preparation tools, Assign materials to students, Upload personal materials, Synchronized notes and bookmarks

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sdui free?

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

### Is BiBox free?

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

### Do Sdui or BiBox have ads?

Neither Sdui nor BiBox shows ads.

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

Sdui ships an update every 5 weeks, and BiBox every 3 months. Most recently, Sdui was updated on October 21, 2026 and BiBox on October 22, 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.*