# Addition Mathematics vs Subtractor

The clearest difference is in-app purchases: Subtractor at none against Addition Mathematics's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Addition Mathematics sells 1 one-off in-app purchase. Subtractor asks for nothing beyond the download.

Addition Mathematics ships an update every 2 weeks, Subtractor every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Addition Mathematics | Subtractor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (21 ratings)](https://appshunter.io/ios/app/addition-mathematics/id1660953482/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 141 MB | 0 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PROGRAMIS PRIME LLC](https://appshunter.io/developer/1051843545) | [David Kelen](https://appshunter.io/developer/1796712157) |

## What reviewers say

### Addition Mathematics

[App page](https://appshunter.io/ios/app/addition-mathematics/id1660953482)

This app teaches children multi-digit addition with step-by-step guidance and positive reinforcement. It adapts to the student's learning pace, offering practice on specific number combinations and even recognizing handwritten answers. Advanced features and customization options are available via in-app purchase.

**Highlights:** Multi-digit addition practice, Step-by-step instructions, AI handwriting recognition, Progress monitoring, Customizable practice, Positive reinforcement

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get All Features | $3.99 | one-time |


### Subtractor

[App page](https://appshunter.io/ios/app/subtractor-by-mather/id6742201502)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Addition Mathematics free?

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

### Is Subtractor free?

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

### Do Addition Mathematics or Subtractor have ads?

Neither Addition Mathematics nor Subtractor shows ads.

### Which is updated more often, Addition Mathematics or Subtractor?

Addition Mathematics ships an update every 2 weeks, and Subtractor every 8 days. Most recently, Addition Mathematics was updated on October 24, 2026 and Subtractor on October 25, 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.*