# Sum vs Math Brainstorm

The clearest difference is in-app purchases: Math Brainstorm at none against Sum's 1. Math Brainstorm also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sum sells 1 in-app purchase, starting at $1.99 per month. Math Brainstorm asks for nothing beyond the download.

## The numbers

| Metric | Sum | Math Brainstorm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sum-math-puzzle-brain-game/id6450458099/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 19 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Whimseed Studio Private Limited](https://appshunter.io/developer/1668117901) | [Uladzislau Hreben](https://appshunter.io/developer/1630520742) |

## What reviewers say

### Sum

[App page](https://appshunter.io/ios/app/sum-math-puzzle-brain-game/id6450458099)

This game challenges you to find sums from a grid of numbers before time runs out. It offers multiple modes, from fast-paced challenges to relaxed untimed play, and helps improve mental agility and logic skills.

**Highlights:** Timed addition challenges, Four distinct game modes, Offline play supported, Compete with friends, Detailed progress statistics, Sleek user interface

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |


### Math Brainstorm

[App page](https://appshunter.io/ios/app/math-brainstorm/id6466660379)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sum free?

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

### Is Math Brainstorm free?

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

### Do Sum or Math Brainstorm have ads?

Sum shows ads; Math Brainstorm does not.

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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.*