# Killer Sudoku - Puzzle Game — user reviews > 96 indexed App Store user reviews of Killer Sudoku by LI SAIHUA, rated 4.90/5 from 1,179 ratings. - Source: https://appshunter.io/ios/app/killer-sudoku-puzzle-game/id1532839429/reviews - App overview in markdown: https://appshunter.io/ios/app/killer-sudoku-puzzle-game/id1532839429.md - Rating breakdown: 5★ 1,117 · 4★ 37 · 3★ 9 · 2★ 8 · 1★ 8 ## What do users think of Killer Sudoku? Overall sentiment: negative **Pros** - 🎨 Color-coded interface - 🧠 Engaging brain-teasing gameplay - 🤓 Challenging for experienced players **Cons** - 🤬 Excessive and intrusive ads - 🔥 Overheating and battery drain issues - 🐛 Frequent crashes and freezes - 🤯 Disruptive ad placement during gameplay **Commonly reported bugs** - Ads blocking gameplay and preventing return to game - Progress loss after app crashes or ads - Incompatibility issues causing overheating on some devices **Most requested features** - Customizable color schemes - Adjustable text/number size - Undo/redo functionality with more steps - Option to disable ads for a fee ## Newest reviews (15 of 96) ### 2/5 — Ads! *2026-08-10* Ads are INCREDIBLY wrong, and mistakes are restricted **Developer response:** Thank you for sharing this. We understand your concerns about inaccurate ads and restricted gameplay. We’ve recorded your feedback for review and will work to make the experience clearer and more enjoyable. ### 3/5 — Great App but… *2026-03-27* I love the app; it’s one of the best implementations I’ve played. But the full screen ads make it not worth it. Please, PLEASE GIVE US AN OPT OUT! **Developer response:** Thank you for loving the app and sharing your concern about full screen ads. Your suggestion for an opt-out option has been noted for further review by our team. We aim to enhance your experience. ### 2/5 — The ads kill this game! *2025-12-31* Used to love this. The game itself is great BUT ads before after and during the game, some are a full 2 minutes and more. I’m done. ### 4/5 — Color *2025-07-20, version 3.1* Love. Color coded ### 2/5 — Just no *2025-03-03* I was playing this game and it made my device really hot and it suddenly turns black but somehow still played my music and it makes me watch so many adds and the adds are almost 2 minutes long! Like WHAT! I can’t. ### 4/5 — 會當機？ *2025-01-22, version 2.9* 覺得好像很耗記憶體？ 手機空間足夠，玩別的遊戲沒問題，但這常常玩到當機要重啟遊戲或速度變慢。 ### 2/5 — Battery drain *2024-11-29* The gameplay is ok, but the battery drain is horrendous. It drains battery MUCH faster than fully graphical 3D games and it makes your phone run hot to touch. It does raise the question of what exactly is this game doing in the background? ### 2/5 — 広告の出方に問題あり *2024-08-03* ゲーム自体はありふれて普通にプレイできるが広告の出方に問題がある。 ・ピクチャインピクチャでYouTubeなどを視聴しながらプレイしていると広告に音声出力を奪われピクチャインピクチャの再生を停止する ・長考するなどで放置していると広告が最大化し操作不可に陥る 明らかに不具合なので修正リリースされるべきである ### 2/5 — 玩得不開心 *2024-07-31, version 2.5* 本來可以邊追戲邊玩數獨 現在不行了 麻煩改進一下 ### 2/5 — Where did the pop up ads come from? *2024-06-18* I loved this game. I've played for a long while and only saw ads between games. Suddenly, I'm getting pop up ads in the MIDDLE of the game. And they're in CHINESE! What gives? I'll delete if it continues. ### 3/5 — 広告が多すぎ *2024-06-01* ここ最近プレー中も広告が出てくるようになりました。 集中力が、途切れるのでイマイチです。 ゲーム後であればわかるのですが… 途中はやめてほしい。 ### 1/5 — 危険 *2024-05-31* 数秒毎に広告が出たり、重くてフリーズします。また本体は熱を持ち、バッテリーの減りも早いので、危険なアプリだた思います。ゲールは色分けされてて遊び易かったが、もう使いません。 ### 1/5 — 好游戏， *2024-05-31* 硬是在广告里面加了一个游戏。开始还是手机一动才有广告，最后直接隔一分钟跳一次广告你怕不怕。 ### 1/5 — 广告变多了 *2024-05-31* 这次更新增加了很多广告，游戏中途不定时弹出，还带抖动的 ### 1/5 — Interstitial ads, uninstalled *2024-05-31* Been playing this game for years but the latest version now plays ads in the middle of gameplay. No more for me! ## Most critical reviews (10 lowest-rated) ### 1/5 — 跳转广告之多实在无法忍受 *2026-07-21* 随便一点或者晃一下就是跳转广告，防不胜防 **Developer response:** 理解您对广告数量的困扰，这确实是需要优化的地方。我们会记录您的反馈并进行评估，非常感谢您提出宝贵意见，期待未来能带来更好的体验。 ### 1/5 — Disgusting ads *2026-03-14* This actually a great game and I will revise my rating if the ad for 3d wool escape is no longer shown. It’s utterly disgusting. **Developer response:** Thank you for sharing your thoughts. We understand your frustration with the current advertisement. Your feedback is very valuable, and we will review it with our team. We hope to enhance your experience in future updates. ### 1/5 — third time this week where ad is just blank black page *2025-11-27* And then can’t get back to game… so have to delete app and reload. Very annoying ### 1/5 — 是有毒嗎 *2025-05-07, version 2.9* 沒廣告卻爆炸Lag，真厲害 ### 1/5 — Delays filling box with number *2025-03-07* I love this game, but it frustrates me when I often have to keep tapping a box and the number doesn’t enter. It also lags when switching from On to Off with guesses, causing needless entry errors. I tried clicking on app support, but it is in Asian characters, as are many of the ads. Sorry. To annoying. Deleted. ### 1/5 — Something Changed and it’s Just Not as Good Anymore *2024-07-13* What has happened to the Expert Level points and scoring? What did you change? I have been playing at Expert level for some time. I have started 888 games of which I have won 569 - 240 without mistakes. My best time is 16’40” and my average time is 43’18”. When I first started playing, the maximum score I could achieve (which I did repeatedly) was 86,400. Then you changed something and the highest score I could achieve (which I also did repeatedly) was 82,440. Something else has changed in the last few days and now the highest score I can get is around 32,000!! What have you changed and why have you done so? Also, up until a few days ago, the Expert level had an unlimited “Undo” buffer. Now, with the recent changes, I can’t go back more than about 20 moves. The smaller “Undo” buffer makes it impossible to trial combinations in the more difficult games, and so makes it much harder to win by using deductive elimination. Instead, one has to guess (and likely start over if wrong) on the more difficult games - which introduces a large amount of luck, which I believe is simply not in the spirit of the design of the puzzle! These recent changes have materially reduced the fun and challenge in what was, in my opinion, the best version of Killer Sudoku. ### 1/5 — Stop shutting off my music *2024-07-02, version 2.5* I’ve sent in so many complaints ### 1/5 — 広告の数が激増 *2024-06-18* ゲームの開始前、終了後だけではなくゲーム途中にもぶっ込んできます。以前はここまで多くなくストレスなく楽しめていただけに非常に残念です。 ### 1/5 — 体验感差 *2024-06-17* 广告全是摇一摇手机就弹，稍微一动就跳出去，有时候要关三四回，严重影响体验 ### 1/5 — 改悪が酷すぎてアンインストールする事にした *2024-06-01* ゲームの合間にCMならまだ我慢できるがゲームの最中にCMが何度も出てきてゲームが中断するのでイライラしてやる気にならなくなった ## Most praised reviews (10 highest-rated) ### 5/5 — Little Ranger *2025-05-05* Love it! Challenging! Enjoying the puzzle! ### 5/5 — Like the game *2024-11-22* Very nice encouraging game. Train my eyes and thinking All the time. Thank you. ### 5/5 — Great game. *2024-09-30* The use of color helps to limit stupid errors ### 5/5 — フリーズ *2024-06-14* どんどん進んでゆくと激しくフリーズが多くなり やがて動かなくなる 異様にADが入り出す ### 5/5 — 広告がストレス *2024-05-31* 最近，アプリを開いた時と新しいゲームを始める時以外に，ゲームのプレイ中に不意に短い広告が出てきてそれが非常にストレスです．他はいいのでその部分だけ改善希望です． ### 5/5 — 益智 *2024-03-20* 益智游戏，激发创新意识，富有挑战性 ### 5/5 — Active Brain *2024-03-04* It helps keep my 73 year old brain working! ### 5/5 — Всё отлично *2023-11-05* лучшее из того, что есть ### 5/5 — さよなら　おやすみなさい *2023-07-13, version 2.1* ご ### 5/5 — Review *2023-06-05* Great game for you and everyone else to play --- *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 2026-08-29.*