# Cross Math vs Sum Fall

The clearest difference is in-app purchases: Cross Math at none against Sum Fall's 1. Cross Math also leads on update cadence (every 3 days vs every 8 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sum Fall sells 1 one-off in-app purchase. Cross Math asks for nothing beyond the download.

Cross Math ships an update every 3 days, Sum Fall every 8 days. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Cross Math | Sum Fall |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (8 ratings)](https://appshunter.io/ios/app/cross-math-logic-puzzle/id6744143253/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 8 days |
| Monetization | Ad-supported | — |
| Size | 69 MB | 26 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Chengdu Boladu Technology Co., Ltd.](https://appshunter.io/developer/1840785220) | [Adrien Buot](https://appshunter.io/developer/1891362517) |

## What reviewers say

### Cross Math

[App page](https://appshunter.io/ios/app/cross-math-logic-puzzle/id6744143253)

Engage your mind with a number puzzle game that combines logic and strategy. Solve grid-based challenges with simple rules, from easy to expert levels. Enjoy daily puzzles and track your progress with smart statistics.

**Highlights:** Fill the grid with numbers, Strategic thinking required, Multiple difficulty levels, Daily challenge mode, Progress tracking statistics, Endless mode with limited mistakes, Offline play support

**Features:** macOS Compatibility

**In-app purchases:** none


### Sum Fall

[App page](https://appshunter.io/ios/app/sum-fall-number-puzzle/id6761768891)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Cross Math free?

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

### Is Sum Fall free?

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

### Do Cross Math or Sum Fall have ads?

Both Cross Math and Sum Fall show ads.

### Which is updated more often, Cross Math or Sum Fall?

Cross Math ships an update every 3 days, and Sum Fall every 8 days. Most recently, Cross Math was updated on October 24, 2026 and Sum Fall on October 13, 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.*