K.O. Nonogram vs Grid Hero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
K.O. Nonogram
Instantly solve Nonogram puzzles with step-by-step guidance. Supports grids from 5x5 to 50x50. Explore a vast online store for printable puzzles.
- Instant puzzle solving
- Step-by-step guidance
- Supports 5-50 grid sizes
- Online puzzle store
- Printable puzzle support
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Get nonogram answers / solving steps immediately. It supports 5~50 grid nonogram. There is a rich online nonogram store, support print puzzle. --------------- The grid of squares must be either filled in black or marked with X. Beside each row of the grid are listed the lengths of the runs of black squares on that row. Above each column are listed the lengths of the runs of black squares in that column. Go to find all black squares.
Grid Hero
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.
- Extensive logic puzzle collection
- Daily bonus and challenge
- Weekly new challenge levels
- Continuous addition of new games
- Multiple subscription options
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Welcome to 'Grid Hero' – A growing collection of number-based puzzles! Games Included: Hitori, Sudoku, Kuromasu, FindNine, Skyscrapers, SlitherLink, Binairo, Dominosa, Battleships, Tents, Light Up, Shikaku, Minesweeper, Renzoku, Masyu, FourWinds, Nurikabe, Arrows, Gappy, Doppelblock, EulerSquare, Thermometers, Bricks, Oneness, Hundred, Kakurasu, Walls, Slant, Nonogram, Kakuro, Heyawake, Tren, Magnet, Mirror, LITS, Tapa, Galaxies, Hashi, Shimaguni, Norinori, StarBattle, BlindSpot, Context, Go. 100 challenge levels every week to test your logical thinking. Daily lottery and a new puzzle every day. Measure your solving skills with the Ability Test. Climb the global leaderboard and compete with puzzle enthusiasts worldwide. More puzzles are being added continuously! Contact: wyklion@qq.com Web Portal:：https://gridhero.kkfun.fun
Screenshots
Verdict
The clearest difference is in-app purchases: K.O. Nonogram at none against Grid Hero's 3. Grid Hero's advantage is review sentiment (100% vs 85%). On price, rating, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Grid Hero sells 3 in-app purchases, starting at $1.99 per month. K.O. Nonogram asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for K.O. Nonogram against 5.0 for Grid Hero. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews are what separate them: 85% of K.O. Nonogram's written reviews are positive against 100% of Grid Hero's.
K.O. Nonogram ships an update every 5 days, Grid Hero weekly. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.
| Parameter | K.O. Nonogram | Grid Hero |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 85.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 2 |
| Update frequency | Every 5 days — better | Weekly |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 42 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | 又瑞 韦 | YIKAI WANG |
Customer experience
K.O. Nonogram
Grid Hero
In-app purchases
K.O. Nonogram
No in-app purchases
Grid Hero
- Premium (Monthly)$1.991 Month
- Premium (Quarterly)$4.993 Months
- Premium (Annual)$17.991 Year
