# Is Kool vs German Reading Stories Books

The clearest difference is in-app purchases: Is Kool at none against German Reading Stories Books's 6. Is Kool also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. German Reading Stories Books sells 6 in-app purchases, starting at $1.99 per 7 days. Is Kool asks for nothing beyond the download.

Is Kool ships an update monthly, German Reading Stories Books every 3 weeks. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Is Kool | German Reading Stories Books |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/is-kool/id6503231715/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 66 MB | 158 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Amruta varshini Balasundaram sivanandam](https://appshunter.io/developer/1726153770) | [Webron Software LTD](https://appshunter.io/developer/1071126548) |

## What reviewers say

### Is Kool

[App page](https://appshunter.io/ios/app/is-kool/id6503231715)

This platform unifies school administrative and academic processes for students, teachers, and parents. It offers a user-friendly, transparent, and centralized system with on-site support and robust security protocols.

**Highlights:** Unified administrative and academic platform, User-friendly and intuitive design, Transparent information access, Centralized data management, On-site support, Data security and backups

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

**In-app purchases:** none


### German Reading Stories Books

[App page](https://appshunter.io/ios/app/german-reading-stories-books/id6740463595)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Story Owl | $1.99 | per 7 days |
| Monthly Premium Story Owl | $2.49 | per month |
| Weekly German Learning Class | $4.99 | per 7 days |
| Annual Premium Story Owl | $9.99 | per year |
| Yearly German Learning Class | $24.99 | per year |
| Lifetime Premium Story Owl | $29.99 | one-time |


## Frequently asked questions

### Is Is Kool free?

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

### Is German Reading Stories Books free?

German Reading Stories Books is free to download, with in-app purchases available.

### Do Is Kool or German Reading Stories Books have ads?

German Reading Stories Books shows ads; Is Kool does not.

### Which is updated more often, Is Kool or German Reading Stories Books?

Is Kool ships an update monthly, and German Reading Stories Books every 3 weeks. Most recently, Is Kool was updated on November 4, 2026 and German Reading Stories Books on November 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.*