# Arithmetic Review vs NumBubbles

The clearest difference is in-app purchases: NumBubbles at none against Arithmetic Review's 1. NumBubbles also leads on update cadence (every 2 weeks vs every 8 months) and iOS requirement (11.0 vs 15.0). Arithmetic Review's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Arithmetic Review sells 1 one-off in-app purchase. NumBubbles asks for nothing beyond the download.

Arithmetic Review ships an update every 8 months, NumBubbles every 2 weeks. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Arithmetic Review | NumBubbles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/arithmetic-review-gre-lite/id605344887/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 10 MB | 81 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Webrich Software Limited](https://appshunter.io/developer/290203591) | [Prathamesh Sawant](https://appshunter.io/developer/1465281497) |

## What reviewers say

### Arithmetic Review

[App page](https://appshunter.io/ios/app/arithmetic-review-gre-lite/id605344887)

Prepare for the GRE with over 450 practice questions covering arithmetic topics. Get instant feedback, detailed explanations, and track your progress with visual tools to ensure you're ready for test day.

**Highlights:** 450+ practice questions, Detailed explanations, Instant feedback, Progress tracking with charts, Topic-specific review, Mock tests

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |


### NumBubbles

[App page](https://appshunter.io/ios/app/numbubbles-mini-game/id1565836614)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Arithmetic Review free?

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

### Is NumBubbles free?

NumBubbles is free to download, with no in-app purchases.

### Do Arithmetic Review or NumBubbles have ads?

NumBubbles shows ads; Arithmetic Review does not.

### Which is updated more often, Arithmetic Review or NumBubbles?

Arithmetic Review ships an update every 8 months, and NumBubbles every 2 weeks. Most recently, Arithmetic Review was updated on October 23, 2026 and NumBubbles on October 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.*