# Jun Sudoku vs RR Shadow Puzzle

Jun Sudoku and RR Shadow Puzzle are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | Jun Sudoku | RR Shadow Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Daily | Daily |
| Size | 22 MB | 33 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phuong Nguyen Viet](https://appshunter.io/developer/1892273686) | [Lan Anh Nguyen Thi](https://appshunter.io/developer/1892279051) |

## What reviewers say

### Jun Sudoku

[App page](https://appshunter.io/ios/app/jun-sudoku/id6761979115)

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

**In-app purchases:** none


### RR Shadow Puzzle

[App page](https://appshunter.io/ios/app/rr-shadow-puzzle/id6762008130)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Jun Sudoku free?

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

### Is RR Shadow Puzzle free?

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

### Do Jun Sudoku or RR Shadow Puzzle have ads?

Neither Jun Sudoku nor RR Shadow Puzzle shows ads.

### Which is updated more often, Jun Sudoku or RR Shadow Puzzle?

Jun Sudoku ships an update daily, and RR Shadow Puzzle daily. Most recently, Jun Sudoku was updated on October 25, 2026 and RR Shadow Puzzle on October 25, 2026.

---

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