# MathGrid 100 vs CalcMaster

The clearest difference is in-app purchases: MathGrid 100 at none against CalcMaster's 1. MathGrid 100 also leads on iOS requirement (15.1 vs 18.0). CalcMaster's advantage is ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. CalcMaster sells 1 one-off in-app purchase. MathGrid 100 asks for nothing beyond the download.

MathGrid 100 ships an update every 3 weeks, CalcMaster every 9 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | MathGrid 100 | CalcMaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 40 MB | 15 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Ishikawa](https://appshunter.io/developer/1876490408) | [Yoshitaka Tanaka](https://appshunter.io/developer/1510093015) |

## What reviewers say

### MathGrid 100

[App page](https://appshunter.io/ios/app/mathgrid-100/id6759038224)

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

**In-app purchases:** none


### CalcMaster

[App page](https://appshunter.io/ios/app/calcmaster-math-practice/id6767875466)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcMaster Full Pack | $9.99 | one-time |


## Frequently asked questions

### Is MathGrid 100 free?

MathGrid 100 is free to download, with no in-app purchases.

### Is CalcMaster free?

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

### Do MathGrid 100 or CalcMaster have ads?

MathGrid 100 shows ads; CalcMaster does not.

### Which is updated more often, MathGrid 100 or CalcMaster?

MathGrid 100 ships an update every 3 weeks, and CalcMaster every 9 days. Most recently, MathGrid 100 was updated on October 10, 2026 and CalcMaster on October 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.*