# SumX vs Chain Math

The clearest difference is in-app purchases: SumX at none against Chain Math's 11. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Chain Math sells 11 one-off in-app purchases. SumX asks for nothing beyond the download.

SumX ships an update every 11 days, Chain Math every 3 weeks. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | SumX | Chain Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/chain-math/id6758923534/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 41 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SumX Games LTD.](https://appshunter.io/developer/1872948245) | [Jared Deason](https://appshunter.io/developer/1875789993) |

## What reviewers say

### SumX

[App page](https://appshunter.io/ios/app/sumx-daily-math-brain-puzzle/id6758439413)

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

**In-app purchases:** none


### Chain Math

[App page](https://appshunter.io/ios/app/chain-math/id6758923534)

Connect adjacent numbers on a grid to reach a target sum, strategizing with powerups and combos. Offers multiple game modes for quick sessions or extended play.

**Highlights:** Connect adjacent number tiles, Match target sums, Combo multipliers, Multiple game modes, Strategic powerups, Daily rewards and achievements

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Wildcards | $0.99 | one-time |
| Add Minus Signs | $0.99 | one-time |
| Slow Time Pack | $1.49 | one-time |
| Number Hop Pack | $1.49 | one-time |
| Board Shuffle ×10 | $1.99 | one-time |
| Starter Bundle | $1.99 | one-time |
| Slow Time Bundle | $3.49 | one-time |
| Number Hop Bundle | $3.49 | one-time |
| Time Freeze ×3 | $3.49 | one-time |
| Chain Math Ad-Free | $4.99 | one-time |
| Premium Pack | $9.99 | one-time |


## Frequently asked questions

### Is SumX free?

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

### Is Chain Math free?

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

### Do SumX or Chain Math have ads?

Both SumX and Chain Math show ads.

### Which is updated more often, SumX or Chain Math?

SumX ships an update every 11 days, and Chain Math every 3 weeks. Most recently, SumX was updated on October 25, 2026 and Chain Math on October 26, 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.*