Comparison

Giant Sudoku vs Hexadoku

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Giant Sudoku

This puzzle app offers a challenging Sudoku experience beyond the traditional 9x9 grid, featuring larger 16x16 and 25x25 puzzles. It's designed to enhance logical thinking and focus, with the option to print puzzles for offline enjoyment. The interface is user-friendly, making it accessible for all ages.

Highlights
  • Larger Sudoku grids (16x16, 25x25)
  • Enhances logical thinking and focus
  • Printable puzzles
  • User-friendly interface
  • Suitable for all ages
Features
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Giant Sudoku – Take on the ultimate challenge! If the classic 9×9 Sudoku feels too easy, why not try 16×16 or even 25×25? In Giant Sudoku, your logical thinking and focus will be pushed to the next level. It’s a full-scale puzzle app you can enjoy at your own pace during your free time. Prefer solving on paper? You can print puzzles directly from the app. Even if you’re not used to apps, it’s easy to play. Share it with your parents or grandparents too!

About

Hexadoku

Features
Read full description

究極の脳トレに挑戦しよう! 圧倒的なスケールを誇る16×16マス(1〜16の数字を使用)の特大ナンプレ(Hexadoku)が、最高に遊びやすいアプリになって登場しました。 「マスが多すぎて、どこにどの数字があるか分からない…」 そんな大盤面ならではのストレスをゼロにするため、独自の便利機能を搭載しています! 【アプリの特徴】 スマートなハイライト機能 盤面の数字をタップするだけで、同じ数字が入っているマスがパッと色付きます。視線が迷子にならず、プレイの快適さが劇的に向上! 超高速の問題生成アルゴリズム 16×16の巨大盤面でもサクサク問題を作成。待ち時間のストレスなく、すぐにゲームを始められます(進行度の%表示付き!)。 3つの難易度 Easy、Normal、Hardから、自分のレベルに合わせた問題に挑戦できます。さらに究極難易度「Extreme」も今後のアップデートで追加予定! 頼れる「探索・解析ソルバー」モード 自作の問題を入力して解けるか判定したり、どうしても解けない問題の答えを探したりできる専用モードを搭載。 盤面の画像保存機能 お気に入りの問題やクリアした盤面を高画質で写真アプリに保存。SNSでのシェアや印刷にも便利です。 論理的思考を極めたい方、普通の9×9ナンプレでは物足りなくなってしまった方におすすめです。さあ、16×16の未知の領域に挑みましょう!

Screenshots

Giant Sudoku4 screens
Hexadoku2 screens

Verdict

The call

The clearest difference is in-app purchases: Giant Sudoku at none against Hexadoku's 1. Giant Sudoku also leads on update cadence (every 2 weeks vs monthly). Hexadoku's advantage is ads (none vs shown). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Hexadoku sells 1 one-off in-app purchase. Giant Sudoku asks for nothing beyond the download.

UpkeepUpdate frequency

Giant Sudoku ships an update every 2 weeks, Hexadoku monthly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Giant Sudoku versus Hexadoku: the parameters behind the verdict, then further details
ParameterGiant SudokuHexadoku
PriceFreeFree
Rating4.8 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size56 MB2 MB
Age rating4+4+
Developernarito hojoRyosuke Asano

In-app purchases

None

Giant Sudoku

No in-app purchases

1 purchases

Hexadoku

One-time1
  • ナンプレ保存機能$0.99

Questions

Is Giant Sudoku free?
Giant Sudoku is free to download, with no in-app purchases.
Is Hexadoku free?
Hexadoku is free to download, with in-app purchases available.
Do Giant Sudoku or Hexadoku have ads?
Giant Sudoku shows ads; Hexadoku does not.
Which is updated more often, Giant Sudoku or Hexadoku?
Giant Sudoku ships an update every 2 weeks, and Hexadoku monthly. Most recently, Giant Sudoku was updated on November 8, 2026 and Hexadoku on October 31, 2026.

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