# Subtraction App vs SUMO

The clearest difference is in-app purchases: SUMO at none against Subtraction App's 1. SUMO also leads on ads (none vs shown). Subtraction App's advantage is iOS requirement (14.0 vs 16.0). On price, update cadence and device support there is nothing between them.

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

Subtraction App ships an update every 2 weeks, SUMO fortnightly. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Subtraction App | SUMO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sumo-math-number-puzzle/id6755301588/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | — | Free |
| Size | 26 MB | 8 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Foodmenu.world Inc.](https://appshunter.io/developer/1438351063) | [Metin Karaduman](https://appshunter.io/developer/1289065477) |

## What reviewers say

### Subtraction App

[App page](https://appshunter.io/ios/app/subtraction-app/id1622934481)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |


### SUMO

[App page](https://appshunter.io/ios/app/sumo-math-number-puzzle/id6755301588)

Connect adjacent tiles to match a target sum in this calm and clever number puzzle. Enjoy a relaxing experience with gentle challenges, perfect for quick breaks or deep focus. Practice mental math and pattern spotting while progressing through multiple worlds.

**Highlights:** Connect adjacent tiles, Match target sum, Smart undo gesture, Multiple worlds with map view, Relaxing, timer-free gameplay, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Subtraction App free?

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

### Is SUMO free?

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

### Do Subtraction App or SUMO have ads?

Subtraction App shows ads; SUMO does not.

### Which is updated more often, Subtraction App or SUMO?

Subtraction App ships an update every 2 weeks, and SUMO fortnightly. Most recently, Subtraction App was updated on November 12, 2026 and SUMO on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*