# Untis Mobile vs Calculightning 3

The clearest difference is price: Untis Mobile at Free against Calculightning 3's $12.99. Calculightning 3's advantage is iOS requirement (8.0 vs 17.0). On in-app purchases and device support there is nothing between them.

Untis Mobile is free to download; Calculightning 3 costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Untis Mobile | Calculightning 3 |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | **[4.5 (1.8K ratings)](https://appshunter.io/ios/app/untis-mobile/id926186904/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 50.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 weeks | — |
| Monetization | Free | — |
| Size | 58 MB | 270 MB |
| Requires iOS | 17.0 | **8.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Untis GmbH](https://appshunter.io/developer/1112298871) | [Ernst Klett Verlag GmbH, Stuttgart](https://appshunter.io/developer/751540887) |

## 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, Apple Watch app, 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


### Calculightning 3

[App page](https://appshunter.io/ios/app/calculightning-3-maths/id1112860730)

**In-app purchases:** none


## Frequently asked questions

### Is Untis Mobile free?

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

### Is Calculightning 3 free?

Calculightning 3 costs $12.99, with no in-app purchases.

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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.*