# Subtraction Mathematics vs ByB Education

The clearest difference is update cadence: Subtraction Mathematics at fortnightly against ByB Education's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Subtraction Mathematics ships an update fortnightly, ByB Education every 4 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Subtraction Mathematics | ByB Education |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (28 ratings)](https://appshunter.io/ios/app/subtraction-mathematics/id1660955330/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 172 MB | 146 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PROGRAMIS PRIME LLC](https://appshunter.io/developer/1051843545) | [Online Learning](https://appshunter.io/developer/1790866777) |

## What reviewers say

### Subtraction Mathematics

[App page](https://appshunter.io/ios/app/subtraction-mathematics/id1660955330)

This math app teaches children multi-digit subtraction with step-by-step guidance and positive reinforcement. It adapts to the student's learning pace, offering practice for beginners and review for older students. Features include AI handwriting recognition and progress monitoring for parents and teachers.

**Highlights:** Multi-digit subtraction with borrowing, Step-by-step instructions, AI handwriting recognition, Progress monitoring with color-coded feedback, Customizable digit combinations, Encouragement-based learning

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

**In-app purchases (1)**

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


### ByB Education

[App page](https://appshunter.io/ios/app/byb-education/id6483862577)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - BI | $59.99 | one-time |
| Package - BJ | $59.99 | one-time |
| Package - BL | $69.99 | one-time |
| Package - BK | $69.99 | one-time |
| Package - BN | $79.99 | one-time |
| Package - BM | $79.99 | one-time |
| Package - BO | $89.99 | one-time |
| Package - BP | $99.99 | one-time |
| Package - BQ | $99.99 | one-time |
| Package - BR | $99.99 | one-time |


## Frequently asked questions

### Is Subtraction Mathematics free?

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

### Is ByB Education free?

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

### Do Subtraction Mathematics or ByB Education have ads?

Neither Subtraction Mathematics nor ByB Education shows ads.

### Which is updated more often, Subtraction Mathematics or ByB Education?

Subtraction Mathematics ships an update fortnightly, and ByB Education every 4 months. Most recently, Subtraction Mathematics was updated on November 3, 2026 and ByB Education on November 8, 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.*