# Untis Mobile vs CTOnline

Untis Mobile and CTOnline are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Untis Mobile ships an update every 2 weeks, CTOnline every 9 days. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Untis Mobile | CTOnline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.7K ratings)](https://appshunter.io/ios/app/untis-mobile/id926186904/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 50.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 54 MB | 132 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Untis GmbH](https://appshunter.io/developer/1112298871) | [BOS GmbH & Co KG](https://appshunter.io/developer/930379258) |

## What reviewers say

### Untis Mobile

[App page](https://appshunter.io/ios/app/untis-mobile/id926186904)

Access your school schedule, substitution plans, and class registers on the go. Communicate with teachers, guardians, and students through messages and receive important notifications. Manage attendance, sick notes, and exam details.

**Highlights:** Individual timetable (offline access), Daily updated substitution plan, Digital class register (attendance, sick notes), Lesson cancellations and room changes, Exam dates and homework tracking, Secure messaging between school members, Push notifications for new messages

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app for school
- 👍 Helpful for staying on top of homework and schedule
- 👍 Provides good overview of classes and timetable
- 👍 Useful for seeing if a teacher is absent

**What reviewers complain about**

- 🐛 Buggy and unreliable
- 🤔 Desktop and mobile versions have different features
- 🤔 New design is confusing and less user-friendly
- 🐛 Doesn't always show accurate or up-to-date information

**Reported bugs**

- Login issues
- Crashes and freezes
- Incorrect or missing schedule information
- Compatibility problems with newer OS versions

**Requested features**

- Allow students to text classmates
- Add ability to see grades
- Improve homework tracking and notifications
- Provide more customization options


### CTOnline

[App page](https://appshunter.io/ios/app/ctonline/id930379259)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Untis Mobile free?

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

### Is CTOnline free?

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

### Do Untis Mobile or CTOnline have ads?

Neither Untis Mobile nor CTOnline shows ads.

### Which is updated more often, Untis Mobile or CTOnline?

Untis Mobile ships an update every 2 weeks, and CTOnline every 9 days. Most recently, Untis Mobile was updated on September 24, 2026 and CTOnline on September 8, 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.*