# Artic Practice vs Subtraction with regrouping

The clearest difference is price: Subtraction with regrouping at $0.99 against Artic Practice's $9.99. Artic Practice's advantage is update cadence (every 9 months vs every 41 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Artic Practice costs $9.99 and Subtraction with regrouping $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Artic Practice ships an update every 9 months, Subtraction with regrouping every 41 months. The most recent releases landed on May 15, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Artic Practice | Subtraction with regrouping |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 41 months |
| Size | 111 MB | 7 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Learning Fundamentals, Inc.](https://appshunter.io/developer/454061076) | [Red Hong](https://appshunter.io/developer/542314714) |

## What reviewers say

### Artic Practice

[App page](https://appshunter.io/ios/app/artic-practice/id520874877)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Artic Practice free?

Artic Practice costs $9.99, with no in-app purchases.

### Is Subtraction with regrouping free?

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

### Do Artic Practice or Subtraction with regrouping have ads?

Neither Artic Practice nor Subtraction with regrouping shows ads.

### Which is updated more often, Artic Practice or Subtraction with regrouping?

Artic Practice ships an update every 9 months, and Subtraction with regrouping every 41 months. Most recently, Artic Practice was updated on May 15, 2026 and Subtraction with regrouping on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*