# Sum vs InXplus Puzzle

The clearest difference is in-app purchases: InXplus Puzzle at none against Sum's 1. InXplus Puzzle also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.6). On price, update cadence and device support there is nothing between them.

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

Sum ships an update every 3 days, InXplus Puzzle every 4 days. The most recent releases landed on September 28, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Sum | InXplus Puzzle |
| --- | --- | --- |
| 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** | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 230 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rajat Vaghani](https://appshunter.io/developer/1668117901) | [Yaser Moursi](https://appshunter.io/developer/1448627148) |

## 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 |


### InXplus Puzzle

[App page](https://appshunter.io/ios/app/inxplus-puzzle/id6462422924)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sum free?

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

### Is InXplus Puzzle free?

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

### Do Sum or InXplus Puzzle have ads?

Sum shows ads; InXplus Puzzle does not.

### Which is updated more often, Sum or InXplus Puzzle?

Sum ships an update every 3 days, and InXplus Puzzle every 4 days. Most recently, Sum was updated on September 28, 2026 and InXplus Puzzle on September 23, 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.*