# Quick Math vs Subtraction with regrouping

The clearest difference is price: Quick Math at Free against Subtraction with regrouping's $0.99. Quick Math also leads on update cadence (every 3 months vs every 41 months) and device support (3 vs 1). Subtraction with regrouping's advantage is in-app purchases (none vs 1). On ads there is nothing between them.

Quick Math is free to download; Subtraction with regrouping costs $0.99 up front. Quick Math sells 1 one-off in-app purchase. Subtraction with regrouping asks for nothing beyond the download.

Quick Math ships an update every 3 months, Subtraction with regrouping every 41 months. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Quick Math | Subtraction with regrouping |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/quick-math-mathematics-time/id590359625/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 41 months |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 7 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Raftery](https://appshunter.io/developer/586892514) | [Red Hong](https://appshunter.io/developer/542314714) |

## What reviewers say

### Quick Math

[App page](https://appshunter.io/ios/app/quick-math-mathematics-time/id590359625)

Master essential math skills with this engaging game featuring 200 levels of addition, subtraction, multiplication, and division. Compete to become the world champion and track your progress through challenging gameplay.

**Highlights:** 200 challenging levels, Addition, subtraction, multiplication, division, Game Center enabled, Learn mathematics easily, Become world champion

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove iAds | $0.99 | one-time |


### Subtraction with regrouping

[App page](https://appshunter.io/ios/app/subtraction-with-regrouping/id838762880)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quick Math free?

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

### Is Subtraction with regrouping free?

Subtraction with regrouping costs $0.99, with no in-app purchases.

### Do Quick Math or Subtraction with regrouping have ads?

Neither Quick Math nor Subtraction with regrouping shows ads.

### Which is updated more often, Quick Math or Subtraction with regrouping?

Quick Math ships an update every 3 months, and Subtraction with regrouping every 41 months. Most recently, Quick Math was updated on October 9, 2026 and Subtraction with regrouping on October 2, 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.*