# Grid Hero vs K.O. Nonogram Pro

The clearest difference is review sentiment: Grid Hero at 100% against K.O. Nonogram Pro's 0%. Grid Hero also leads on price (Free vs $9.99). K.O. Nonogram Pro's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

Grid Hero is free to download; K.O. Nonogram Pro costs $9.99 up front. Grid Hero sells 3 in-app purchases, starting at $1.99 per month. K.O. Nonogram Pro asks for nothing beyond the download.

Grid Hero ships an update weekly, K.O. Nonogram Pro every 6 days. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Grid Hero | K.O. Nonogram Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/grid-hero-logic-puzzles/id6474739003/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 33 MB | 28 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YIKAI WANG](https://appshunter.io/developer/634355643) | [又瑞 韦](https://appshunter.io/developer/1625836878) |

## What reviewers say

### Grid Hero

[App page](https://appshunter.io/ios/app/grid-hero-logic-puzzles/id6474739003)

This app offers a vast collection of number-based logic puzzles, including Sudoku, Hitori, and Minesweeper. It provides daily challenges and new levels weekly, with new games continually being added. Enjoy a growing library of brain-teasing fun.

**Highlights:** Extensive logic puzzle collection, Daily bonus and challenge, Weekly new challenge levels, Continuous addition of new games, Multiple subscription options

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |
| Premium (Quarterly) | $4.99 | per 3 months |
| Premium (Annual) | $17.99 | per year |


### K.O. Nonogram Pro

[App page](https://appshunter.io/ios/app/ko-nonogram-pro/id6737248261)

This app provides instant solutions and solving steps for Nonogram puzzles. It supports grids from 5x5 to 50x50 and offers features like cloud backup and printing capabilities. Enjoy an ad-free experience with unlimited prompts and access to all puzzles.

**Highlights:** Instant puzzle solutions, Unlimited prompts, Unlock all puzzles, Print puzzles, Cloud backup, Supports 5x5 to 50x50 grids

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

**In-app purchases:** none


## Frequently asked questions

### Is Grid Hero free?

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

### Is K.O. Nonogram Pro free?

K.O. Nonogram Pro costs $9.99, with no in-app purchases.

### Do Grid Hero or K.O. Nonogram Pro have ads?

Both Grid Hero and K.O. Nonogram Pro show ads.

### Which is updated more often, Grid Hero or K.O. Nonogram Pro?

Grid Hero ships an update weekly, and K.O. Nonogram Pro every 6 days. Most recently, Grid Hero was updated on October 18, 2026 and K.O. Nonogram Pro on October 24, 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.*