# First Grade Math Trainer vs KGNAD

The clearest difference is price: KGNAD at Free against First Grade Math Trainer's $2.99. KGNAD also leads on update cadence (every 2 weeks vs every 26 months). First Grade Math Trainer's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.0). On ads and in-app purchases there is nothing between them.

KGNAD is free to download; First Grade Math Trainer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

First Grade Math Trainer ships an update every 26 months, KGNAD every 2 weeks. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | First Grade Math Trainer | KGNAD |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 2 weeks** |
| Size | 17 MB | 399 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [Joao Filipe Serôdio Josézinho](https://appshunter.io/developer/587880560) |

## What reviewers say

### First Grade Math Trainer

[App page](https://appshunter.io/ios/app/first-grade-math-trainer/id1312646149)

**Features:** macOS Compatibility

**In-app purchases:** none


### KGNAD

[App page](https://appshunter.io/ios/app/kgnad-study-german-cases/id6789732366)

**In-app purchases:** none


## Frequently asked questions

### Is First Grade Math Trainer free?

First Grade Math Trainer costs $2.99, with no in-app purchases.

### Is KGNAD free?

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

### Do First Grade Math Trainer or KGNAD have ads?

Neither First Grade Math Trainer nor KGNAD shows ads.

### Which is updated more often, First Grade Math Trainer or KGNAD?

First Grade Math Trainer ships an update every 26 months, and KGNAD every 2 weeks. Most recently, First Grade Math Trainer was updated on October 3, 2026 and KGNAD on October 15, 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.*