# Number Sum Up vs AetherSum

The clearest difference is in-app purchases: AetherSum at none against Number Sum Up's 1. Number Sum Up's advantage is ads (none vs shown) and update cadence (every 3 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Number Sum Up sells 1 one-off in-app purchase. AetherSum asks for nothing beyond the download.

Number Sum Up ships an update every 3 days, AetherSum every 3 months. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Number Sum Up | AetherSum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (19 ratings)](https://appshunter.io/ios/app/number-sum-up-quick-math/id6502631525/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 197 MB | 9 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ALICE GAMES](https://appshunter.io/developer/1726187276) | [Sui Fai Law](https://appshunter.io/developer/1889201616) |

## What reviewers say

### Number Sum Up

[App page](https://appshunter.io/ios/app/number-sum-up-quick-math/id6502631525)

Solve number puzzles by circling and erasing digits to make rows and columns add up to target sums. This game offers a clean design and varying difficulty levels to sharpen your mental math skills.

**Highlights:** Circle and erase numbers, Solve row and column sum puzzles, Multiple difficulty levels, Varying board sizes, Hint system, Clean and simple design

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### AetherSum

[App page](https://appshunter.io/ios/app/aethersum-number-puzzle/id6762048012)

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

**In-app purchases:** none


## Frequently asked questions

### Is Number Sum Up free?

Number Sum Up is free to download, with in-app purchases available.

### Is AetherSum free?

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

### Do Number Sum Up or AetherSum have ads?

AetherSum shows ads; Number Sum Up does not.

### Which is updated more often, Number Sum Up or AetherSum?

Number Sum Up ships an update every 3 days, and AetherSum every 3 months. Most recently, Number Sum Up was updated on September 27, 2026 and AetherSum on September 30, 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.*