# Hochschule Kehl vs ZenStudy.ai

The clearest difference is in-app purchases: Hochschule Kehl at none against ZenStudy.ai's 1. Hochschule Kehl also leads on ads (none vs shown) and update cadence (every 10 days vs every 2 months). On price there is nothing between them.

Both are free to download. ZenStudy.ai sells 1 in-app purchase, starting at $14.99 per month. Hochschule Kehl asks for nothing beyond the download.

Hochschule Kehl ships an update every 10 days, ZenStudy.ai every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Hochschule Kehl | ZenStudy.ai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 2 months |
| Size | 105 MB | 48 MB |
| Requires iOS | **13.4** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [UniNow GmbH](https://appshunter.io/developer/1099302123) | [ZenStudy Technologies - FZCO](https://appshunter.io/developer/1782979211) |

## What reviewers say

### Hochschule Kehl

[App page](https://appshunter.io/ios/app/hochschule-kehl/id1635114335)

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


### ZenStudy.ai

[App page](https://appshunter.io/ios/app/zenstudyai/id6738932178)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Membership | $14.99 | per month |


## Frequently asked questions

### Is Hochschule Kehl free?

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

### Is ZenStudy.ai free?

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

### Do Hochschule Kehl or ZenStudy.ai have ads?

ZenStudy.ai shows ads; Hochschule Kehl does not.

### Which is updated more often, Hochschule Kehl or ZenStudy.ai?

Hochschule Kehl ships an update every 10 days, and ZenStudy.ai every 2 months. Most recently, Hochschule Kehl was updated on October 27, 2026 and ZenStudy.ai on October 25, 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.*