# Number Sum Puzzle vs HexaDoku

The clearest difference is rating: HexaDoku at 4.8 against Number Sum Puzzle's 3.8. HexaDoku also leads on in-app purchases (none vs 5) and ratings volume (298 vs 6). Number Sum Puzzle's advantage is review sentiment (50% vs 23%). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Number Sum Puzzle sells 5 one-off in-app purchases. HexaDoku asks for nothing beyond the download.

HexaDoku holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: HexaDoku has 298 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 50% of Number Sum Puzzle's written reviews are positive against 23% of HexaDoku's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 5 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Number Sum Puzzle | HexaDoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (6 ratings)](https://appshunter.io/ios/app/number-sum-puzzle-math-game/id6759648322/reviews) | **[4.8 (298 ratings)](https://appshunter.io/ios/app/hexadoku/id6788073725/reviews)** |
| Number of ratings | 6 | **298** |
| Positive reviews | **50.0% of reviews** | 23.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | Ad-supported | Ad-supported |
| Best chart rank | — | **#69** |
| Size | 138 MB | 404 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [LIHUHU PUBLISHING PTE. LTD.](https://appshunter.io/developer/1732214108) | [Serkan Ozyilmaz](https://appshunter.io/developer/1354452188) |

## What reviewers say

### Number Sum Puzzle

[App page](https://appshunter.io/ios/app/number-sum-puzzle-math-game/id6759648322)

This logic puzzle game challenges your brain with number sums. Arrange numbers in a grid so rows and columns match target sums. Enjoy handcrafted puzzles with no timers or pressure, perfect for a calm, focused mental workout.

**Highlights:** Number sum grid puzzles, Handcrafted unique solutions, No timers or pressure, Offline play, Daily brain workout, Dark mode support

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Hints | $1.99 | one-time |
| Value Hints | $5.99 | one-time |
| Mega Hints | $9.99 | one-time |
| VIP - No Ads | $19.99 | one-time |
| VIP - No Ads | $49.99 | one-time |


### HexaDoku

[App page](https://appshunter.io/ios/app/hexadoku/id6788073725)

**Currently charting:** #69 Top Free · Board (US App Store)

A relaxing number logic puzzle game with a hexagonal grid. Fill the board with missing numbers, ensuring each consecutive number connects to the next. Enjoy hundreds of handcrafted levels and daily challenges with a unique solution for every puzzle.

**Highlights:** Hexagonal grid puzzles, Hundreds of handcrafted levels, Daily challenges, Unique solution per puzzle, Relaxing garden theme, No time limits

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Number Sum Puzzle free?

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

### Is HexaDoku free?

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

### Which has better reviews, Number Sum Puzzle or HexaDoku?

HexaDoku is rated higher. Number Sum Puzzle averages 3.8 out of 5 from 6 ratings, while HexaDoku averages 4.8 from 298 ratings.

### Do Number Sum Puzzle or HexaDoku have ads?

Both Number Sum Puzzle and HexaDoku show ads.

### Which is updated more often, Number Sum Puzzle or HexaDoku?

Number Sum Puzzle ships an update every 5 days, and HexaDoku every 5 days. Most recently, Number Sum Puzzle was updated on October 28, 2026 and HexaDoku on October 28, 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.*