# Nonograms Katana — user reviews > 339 indexed App Store user reviews of Nonograms Katana by Ucdevs Interaction DOO, rated 4.83/5 from 6,646 ratings. - Source: https://appshunter.io/ios/app/nonograms-katana/id1037710023/reviews - App overview in markdown: https://appshunter.io/ios/app/nonograms-katana/id1037710023.md - Rating breakdown: 5★ 5,469 · 4★ 601 · 3★ 107 · 2★ 16 · 1★ 52 ## What do users think of Nonograms Katana? Overall sentiment: positive **Pros** - 👍 Lots of puzzles - 👍 Customizable settings - 👍 Minimal ads - 👍 Challenging puzzles - 👍 User-created puzzles - 👍 Satisfying to complete - 👍 Relaxing gameplay - 👍 Intuitive interface **Cons** - 🐛 Occasional crashes - 🐛 Puzzle progress loss - 🐛 Ads not working - 🐛 Freezing issues - 🐛 Compatibility problems - 🔍 Lack of difficulty ratings - 🔍 Small buttons/controls **Commonly reported bugs** - Puzzle progress not saving - Puzzle images not loading - Freezing/crashing on larger puzzles - Ads not playing properly - Compatibility issues with newer iOS versions **Most requested features** - Dark mode option - Ability to rearrange/move puzzle pieces - Difficulty ratings for puzzles - Automatic line/row completion - Ability to follow/subscribe to users - Notification system for new puzzles - Diagonal line drawing tool ## Newest reviews (10 of 339) ### 3/5 — One thing *2026-08-03, version 21.300* Please please please let me cross vertical and horizontal arrows ### 3/5 — Really good game but latest update… *2026-07-02, version 13.120* I love this game and really helps me relax. However I have come across some bugs in the last few days. For some reason the game crashes when I open it. I have closed and opened it and uninstalled which helped temporarily nut then it wipes all my settings so I have to redo all the settings so it matches my play style. Why can’t this be linked to your account? Please fix these issues because I really enjoy this game ### 4/5 — Better filtering would be nice *2026-06-20, version 13.120* Overall quite good, but I wish filtering functionality were better. It’s not clear how the filter toggle buttons interact—it would be great to have explicit include/exclude or and/or control. I would also love to be able to filter size by one dimension. On mobile, I much prefer tall/narrow puzzles to short/wide, and I’m not aware of any way to specify that (such as max width). A second-best capability would be a rotate/transpose option. ### 4/5 — Nearly perfect *2026-06-20, version 13.120* Great variety of puzzles and levels of complexity. I was happy to pay for full version and I use my Apple Pencil to accurately tap on the squares. On the larger grids it would be helpful if I could tap on one row/column and the whole line be highlighted so it’s easier to count/mark the squares. ### 4/5 — Addictive puzzle *2026-01-25, version 13.120* Ads are hard to close and are annoying. ### 4/5 — really great monogram app love it!! *2026-01-23, version 13.120* I would give it 5 stars if there was a search feature implemented for each nonogram category ### 5/5 — The Best *2026-01-18, version 13.120* I never write reviews, but I’ve enjoyed this game so much that I had to recommend it. - It has features you didn’t even know you needed. - The pictures actually look like what’s advertised. - You can start with any level you want, rather than being forced to progress from easy to hard. - There is one brief ad before you start a puzzle—ads do not interrupt the puzzle while you’re working on it. - I don’t know how many puzzles there are, but it must be hundreds. - Most of the puzzles are by belko61, but there is another section with puzzles by other authors. If you find a puzzle style you like, you can find the name of the author and sort to find other puzzles by the same person. I just look for more by belko61, who is a real artist. ### 5/5 — J’aime beaucoup *2025-12-30, version 13.120* J’ai 73 ans et ce jeu me permet de rester alerte ### 5/5 — :) *2025-12-27, version 13.120* Fun no ads ### 5/5 — Best Nonogram App *2025-12-18, version 13.120* This is the best monogram app I’ve used! It has great controls for large puzzles on small screens and an abundance of puzzles to try. And it’s all free! You’ll be hooked ## Most critical reviews (10 lowest-rated) ### 1/5 — porn ads in app *2026-08-24, version 21.300* The game itself i love but the ads when you start the game open to porn sites. I accidentally tapped on one and opened it in front of my kid. ### 1/5 — Too many Temu ads *2026-08-10, version 21.300* The ads are nothing but Temu which I can’t stand anymore. I got a virus because of those ads. Get rid of all of them right now! ### 1/5 — Broken *2026-04-09, version 13.120* Ads don’t close. They lock up and the app has to be hard closed, then reopened. Ad rewards not awarded. Even worse, it opens to an ad, so you can’t get past it to the game. Completely broken. ### 1/5 — No Guild!!!!!! *2026-03-09, version 13.120* Still no guild for iOS!! Please make that happen!! ### 1/5 — Porn ads *2026-02-25, version 13.120* Ads look like porn pics until open. Not good for kids! ### 1/5 — Android version has a night mode *2026-02-23, version 13.120* Android people can enjoy the nonograms in their beds, while we have to endure an eye burning experience of a bright white screen. I thought it was a great app (free!) until i saw how much more pleasant it could be if it had just a black background :( ### 1/5 — Spammy ads *2026-02-05, version 13.120* There are a lot of ads that contain spam and fake information. I did get a virus because of this. Please get rid of all those ads right now! ### 1/5 — Bad design *2026-02-05, version 13.120* Puzzles are too small and are therefore awkward. “Hints” keep taking you back to the same box. One puzzle I did was indicating an error that clearly was not. The column did not match the row; a lot of time wasted for nothing. ### 1/5 — Soooo bad *2026-01-11, version 13.120* So hard ### 1/5 — We’re guild *2026-01-08, version 13.120* On android guid is. But on IOS is not. Shame ## Most praised reviews (10 highest-rated) ### 5/5 — Great fun, well implemented *2026-08-18, version 21.300* This is great! So many customisable options and it’s the best app for Nonograms around. At only $5 to remove ads (very short ads by the way) the amount of content is amazing. Good social features too if you’re into that. Regardless, you can play other Nonograms created by other uses. Literally thousands and thousands to play through. I can’t imagine doing some of the bigger ones (above 25 rows/columns) on phone, but the pinch in/out and move is easy and intuitive. I think I’ll get a ton of use and fun out of this app! And I would recommend it to anyone. It has its high ratings in the App Store for a reason! Get it today, you won’t regret it. ### 5/5 — Very relaxing *2026-08-08, version 21.300* Only usually the odd short advert. ### 5/5 — Thank you *2026-07-17, version 21.300* Ever since my mom got this app for me I have fallen in love with it ### 5/5 — look no further *2026-07-06, version 13.120* Truly just the best nonogram app. Been playing this (or addicted) for 5 years now. The community feature is so good, endless large scale nonograms! ### 5/5 — Best nonogram app *2026-07-05, version 13.120* First, it’s a great app. Challenging — you can pick your difficulty — and fun, with lots of content. No doubt good for my brain. They do a great job with ads. Ads are fine; the developers deserve to make a profit. Too many apps allow ads you can’t delete or are replaced by more ads. (I’ve uninstalled enough of them.). Not here. The ages are short — so much so that I actually watch them — and do not interrupt play. It’s almost like they want you to enjoy the program. ### 5/5 — best nonogram app i’ve played! *2026-06-06, version 13.120* this app is so good! i think it’s the best nonogram app i’ve played: so many puzzles and levels of difficulty :D it’s so cool how you can make and upload your own ones too and play other people’s puzzles ### 5/5 — Best Nonogram Program *2026-05-29, version 13.120* After doing nonograms here, I find it hard to enjoy other picross and nonogram apps and programs because this one is so good! Consistently great for years ### 5/5 — ❤️Gefunden❤️ *2026-05-12, version 13.120* Auf der Suche nach einer schönen, umfassenden und auch den Spielanreiz lange erhaltenden Nonogramm App bin ich auf diese hier gestoßen. Der Funktionsumfang und die schier unglaubliche Menge an Puzzles wird mich lange bei der Stange halten! Absolute Empfehlung! ### 5/5 — Wonderful app! *2026-02-21, version 13.120* Great controls for those that love Nonograms. The ability to customize colors is wonderful—I use it to increase contrast between similar colors. The abundance of note taking tools: arrow tool to assist counting, multiple symbols to mark possibilities, color dots, etc. ### 5/5 — Amazing!! *2026-02-04, version 13.120* Best app ever! Everything is free with minimal ads (1 ad per puzzle). Too addicting. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*