# Pure Flashcards Subtraction vs 空間図形AR/SpaceFigureAR

The clearest difference is price: 空間図形AR/SpaceFigureAR at Free against Pure Flashcards Subtraction's $0.99. 空間図形AR/SpaceFigureAR also leads on update cadence (every 2 months vs every 12 months) and iOS requirement (11.0 vs 15.6). Pure Flashcards Subtraction's advantage is device support (3 vs 1). On ads and in-app purchases there is nothing between them.

空間図形AR/SpaceFigureAR is free to download; Pure Flashcards Subtraction costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pure Flashcards Subtraction ships an update every 12 months, 空間図形AR/SpaceFigureAR every 2 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Pure Flashcards Subtraction | 空間図形AR/SpaceFigureAR |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 0 MB | 27 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [T&T United Inc.](https://appshunter.io/developer/468282934) | [Hirotaka Mori](https://appshunter.io/developer/1217121913) |

## What reviewers say

### Pure Flashcards Subtraction

[App page](https://appshunter.io/ios/app/pure-flashcards-subtraction/id933588107)

This app offers a focused flashcard experience for learning subtraction facts. It features 126 cards covering various subtraction ranges, presented randomly for repeated practice. Designed for both classroom and home use, it requires no internet or sign-up.

**Highlights:** 126 subtraction flashcards, Random card order, Offline access, No sign-up required, Classroom and home use, Simple two-tap start

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

**In-app purchases:** none


### 空間図形AR/SpaceFigureAR

[App page](https://appshunter.io/ios/app/arspacefigurear/id1400371202)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pure Flashcards Subtraction free?

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

### Is 空間図形AR/SpaceFigureAR free?

空間図形AR/SpaceFigureAR is free to download, with no in-app purchases.

### Do Pure Flashcards Subtraction or 空間図形AR/SpaceFigureAR have ads?

Neither Pure Flashcards Subtraction nor 空間図形AR/SpaceFigureAR shows ads.

### Which is updated more often, Pure Flashcards Subtraction or 空間図形AR/SpaceFigureAR?

Pure Flashcards Subtraction ships an update every 12 months, and 空間図形AR/SpaceFigureAR every 2 months. Most recently, Pure Flashcards Subtraction was updated on November 1, 2026 and 空間図形AR/SpaceFigureAR on October 26, 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.*