# Math 1, Addition Subtraction vs Inkgrad

The clearest difference is in-app purchases: Math 1, Addition Subtraction at none against Inkgrad's 2. Math 1, Addition Subtraction also leads on iOS requirement (15.6 vs 17.0). Inkgrad's advantage is ads (none vs shown) and update cadence (daily vs every 4 days). On price and device support there is nothing between them.

Both are free to download. Inkgrad sells 2 in-app purchases, starting at $9.99 per month. Math 1, Addition Subtraction asks for nothing beyond the download.

Math 1, Addition Subtraction ships an update every 4 days, Inkgrad daily. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Math 1, Addition Subtraction | Inkgrad |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Daily** |
| Size | 28 MB | 1 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vu Chien Cong](https://appshunter.io/developer/1635678525) | [NANODEVX LLC](https://appshunter.io/developer/6792381564) |

## What reviewers say

### Math 1, Addition Subtraction

[App page](https://appshunter.io/ios/app/math-1-addition-subtraction/id6761897534)

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

**In-app purchases:** none


### Inkgrad

[App page](https://appshunter.io/ios/app/inkgrad-printed-math-practice/id6792381562)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $9.99 | per month |
| Max | $19.99 | per month |


## Frequently asked questions

### Is Math 1, Addition Subtraction free?

Math 1, Addition Subtraction is free to download, with no in-app purchases.

### Is Inkgrad free?

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

### Do Math 1, Addition Subtraction or Inkgrad have ads?

Math 1, Addition Subtraction shows ads; Inkgrad does not.

### Which is updated more often, Math 1, Addition Subtraction or Inkgrad?

Math 1, Addition Subtraction ships an update every 4 days, and Inkgrad daily. Most recently, Math 1, Addition Subtraction was updated on October 28, 2026 and Inkgrad on October 29, 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.*