# Group Control vs Math Castle

The clearest difference is update cadence: Math Castle at every 3 days against Group Control's every 7 months. Group Control's advantage is iOS requirement (12.0 vs 17.0). 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.

Group Control ships an update every 7 months, Math Castle every 3 days. The most recent releases landed on January 8, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Group Control | Math Castle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/math-castle/id6761670874/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | — | Free |
| Size | 1 MB | 66 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Hiwonder Technology Co.,Ltd](https://appshunter.io/developer/1090806812) | [Turner Logic](https://appshunter.io/developer/1029653422) |

## What reviewers say

### Group Control

[App page](https://appshunter.io/ios/app/group-control/id6738078206)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Castle

[App page](https://appshunter.io/ios/app/math-castle/id6761670874)

Master foundational and derived math facts through a multi-sensory approach. Practice addition, subtraction, multiplication, and division with customizable settings and unlock new levels as you progress. Create personalized printable practice sheets.

**Highlights:** Multi-sensory learning (see, hear, write), Master foundational and derived facts, Addition, subtraction, multiplication, division, Missing addend/factor settings, Unlockable castle levels, Customizable printable PDFs

**In-app purchases:** none


## Frequently asked questions

### Is Group Control free?

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

### Is Math Castle free?

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

### Do Group Control or Math Castle have ads?

Neither Group Control nor Math Castle shows ads.

### Which is updated more often, Group Control or Math Castle?

Group Control ships an update every 7 months, and Math Castle every 3 days. Most recently, Group Control was updated on January 8, 2026 and Math Castle on September 7, 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.*