# Subtraction Math Master vs Numera

The clearest difference is ads: Subtraction Math Master at none against Numera's shown. Subtraction Math Master also leads on iOS requirement (8.0 vs 12.0). Numera's advantage is update cadence (every 6 days vs every 18 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Subtraction Math Master sells 1 one-off in-app purchase and Numera sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Subtraction Math Master ships an update every 18 months, Numera every 6 days. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Subtraction Math Master | Numera |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 261 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peter Li](https://appshunter.io/developer/424298074) | [Metric Studio Inc.](https://appshunter.io/developer/1618098746) |

## What reviewers say

### Subtraction Math Master

[App page](https://appshunter.io/ios/app/subtraction-math-master/id672670414)

Enhance your mental math skills with this game focused on 2-digit subtraction. It offers modes for quick challenges and unlimited practice, helping you reduce calculator reliance and boost cognitive function.

**Highlights:** Improve 2-digit mental subtraction, Timed challenges and unlimited practice modes, Track scores and statistics, Game Center Leaderboards & Achievements, Share scores with friends and family, Stylish and intuitive interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WORK MODE | $0.99 | one-time |


### Numera

[App page](https://appshunter.io/ios/app/numera-math-puzzle-game/id6670555101)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 key items | $0.49 | one-time |
| 10 Skip Items | $0.49 | one-time |
| 20 key items | $0.99 | one-time |
| 30 key items | $1.99 | one-time |
| 30 skip items | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |
| 50 hint items | $2.99 | one-time |
| 50 skip items | $2.99 | one-time |
| 80 skip items | $4.99 | one-time |
| 100 skip items | $6.99 | one-time |


## Frequently asked questions

### Is Subtraction Math Master free?

Subtraction Math Master is free to download, with in-app purchases available.

### Is Numera free?

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

### Do Subtraction Math Master or Numera have ads?

Numera shows ads; Subtraction Math Master does not.

### Which is updated more often, Subtraction Math Master or Numera?

Subtraction Math Master ships an update every 18 months, and Numera every 6 days. Most recently, Subtraction Math Master was updated on September 29, 2026 and Numera 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.*