# CTOnline vs Schrack for Students

The clearest difference is update cadence: CTOnline at every 9 days against Schrack for Students's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

CTOnline ships an update every 9 days, Schrack for Students every 4 weeks. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | CTOnline | Schrack for Students |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/schrack-for-students/id1506161407/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 4 weeks |
| Monetization | — | Free |
| Size | 132 MB | 61 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BOS GmbH & Co KG](https://appshunter.io/developer/930379258) | [Schrack Technik GmbH](https://appshunter.io/developer/371628144) |

## What reviewers say

### CTOnline

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Schrack for Students

[App page](https://appshunter.io/ios/app/schrack-for-students/id1506161407)

Access electrical engineering textbooks, find tutorials, create notes, and connect with a community for help. Practice problems with solutions are available, along with job news and event information.

**Highlights:** Free textbook downloads, Community chat, Practice problems with solutions, Create summaries and notes, Offline usability, Multi-device synchronization, Job and event news

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

**In-app purchases:** none


## Frequently asked questions

### Is CTOnline free?

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

### Is Schrack for Students free?

Schrack for Students is free to download, with no in-app purchases.

### Do CTOnline or Schrack for Students have ads?

Neither CTOnline nor Schrack for Students shows ads.

### Which is updated more often, CTOnline or Schrack for Students?

CTOnline ships an update every 9 days, and Schrack for Students every 4 weeks. Most recently, CTOnline was updated on October 10, 2026 and Schrack for Students on September 24, 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.*