# RainbowSifter vs Flying Sudoku

RainbowSifter and Flying Sudoku are too close to call on the numbers: across 6 compared parameters — price, rating, ratings volume 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.

On the App Store both sit at effectively the same score — 5.0 for RainbowSifter against 5.0 for Flying Sudoku. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | RainbowSifter | Flying Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/rainbowsifter/id1616453352/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/flying-sudoku/id6651828929/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 12 months |
| Monetization | Free | Free |
| Size | 8 MB | 1 MB |
| Requires iOS | 18.6 | **17.5** |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Robert Hennessy](https://appshunter.io/developer/381643143) | [Andersson Consulting LLC](https://appshunter.io/developer/1814444029) |

## What reviewers say

### RainbowSifter

[App page](https://appshunter.io/ios/app/rainbowsifter/id1616453352)

A color-matching puzzle game where players select six primary rainbow colors from an expanding selection. Drag colors to a target to build your rainbow. Long-press the target for additional options.

**Highlights:** Color selection, Rainbow building, Drag and drop interface, Long press options, Increasing difficulty

**In-app purchases:** none


### Flying Sudoku

[App page](https://appshunter.io/ios/app/flying-sudoku/id6651828929)

Enjoy a customizable Sudoku experience with adjustable difficulty and the ability to reveal cells when needed. Tailor your gameplay by choosing your starting difficulty or the number of pre-filled cells.

**Highlights:** Configurable difficulty levels, Adjustable starting cells, Reveal cells option, Traditional Sudoku gameplay, Tailormade gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RainbowSifter free?

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

### Is Flying Sudoku free?

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

### Which has better reviews, RainbowSifter or Flying Sudoku?

RainbowSifter and Flying Sudoku are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

---

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