# Sudoku Kensei vs GridFlow

The clearest difference is update cadence: Sudoku Kensei at monthly against GridFlow's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sudoku Kensei sells 1 one-off in-app purchase and GridFlow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Sudoku Kensei ships an update monthly, GridFlow every 3 months. Both last shipped on November 5, 2026.

## The numbers

| Metric | Sudoku Kensei | GridFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/sudoku-kensei/id6760353100/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Freemium | — |
| Size | 31 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Shapiro](https://appshunter.io/developer/1651118132) | [JetRise IT Solutions LLC](https://appshunter.io/developer/1868886386) |

## What reviewers say

### Sudoku Kensei

[App page](https://appshunter.io/ios/app/sudoku-kensei/id6760353100)

This app helps you understand and solve Sudoku puzzles with visual hints and advanced techniques. It offers features like a camera scanner for printed puzzles and smart candidate management. Customize your experience with various display options.

**Highlights:** Visual Sudoku technique finders, Camera puzzle scanner, Smart candidate management, Advanced fish pattern finders (Pro), Customizable display and entry methods, Save, export, and share puzzles (Pro)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $0.99 | one-time |


### GridFlow

[App page](https://appshunter.io/ios/app/gridflow-brain-puzzle/id6761633183)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GridFlow Pro – Lifetime Unlock | $14.99 | one-time |


## Frequently asked questions

### Is Sudoku Kensei free?

Sudoku Kensei is free to download, with in-app purchases available.

### Is GridFlow free?

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

### Do Sudoku Kensei or GridFlow have ads?

Neither Sudoku Kensei nor GridFlow shows ads.

### Which is updated more often, Sudoku Kensei or GridFlow?

Sudoku Kensei ships an update monthly, and GridFlow every 3 months. Most recently, Sudoku Kensei was updated on November 5, 2026 and GridFlow on November 5, 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.*