Sudoku Tutor vs 3D Puzzle Game「VariableCube」
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sudoku Tutor
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Learn Sudoku Instead of Just Solving It! Sudoku Tutor is more than a Sudoku solver. It teaches you how to solve Sudoku puzzles using real logical techniques. Simply scan a puzzle from a newspaper, magazine, book, or photo. The app analyzes the puzzle and explains each solving step with clear hints instead of immediately revealing the answer. Whether you're a beginner learning Sudoku or an experienced player improving advanced techniques, Sudoku Tutor helps you become a better solver. Features • Scan Sudoku with your camera • Import puzzles from your photo library • Correct recognition results manually • Step-by-step logical hints • Learn advanced solving techniques • Save puzzles and continue anytime • Clean and easy-to-use interface • Supports both beginners and experts Instead of giving you the solution, Sudoku Tutor teaches you how to think. Master Sudoku with logical solving techniques and enjoy improving your skills every day.
3D Puzzle Game「VariableCube」
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Start with two colors and just a few shuffle moves, and enjoy a 3D cube puzzle at your own pace. Variable Cube lets you customize the number of colors, color scheme, and shuffle level to suit you. Found six-color cube puzzles too difficult? Start with fewer colors and an easier shuffle. If you get stuck, use hints to see how to move the pieces. As you gain confidence, try solving without hints or beating your personal best! ◆ Variable Cube Features 【1】Choose from 2 to 6 colors In beginner-friendly 2-Color Mode, the solved cube has three faces of each color. Start with fewer colors, then move on to 3, 4, 5, or 6 colors as you improve. Find the challenge that suits you. 【2】Start with a single shuffle move Begin by solving a cube that has been scrambled with just one move. After your first solve, you can choose shuffle levels up to 25. 【3】Make the cube your own Customize the cube's colors freely. Play with your favorite color scheme or choose combinations that are easy to tell apart. 【4】Take your time or race the clock • Try Mode Solve at your own pace with no time limit. • Time Mode See how quickly you can solve a cube at shuffle level 20. Aim to beat your personal best in each color mode, from 2 to 6 colors. 【5】Follow hints all the way to the solution In Try Mode, hints show you the steps from the cube's current state to completion. • Manual Follow the flashing tiles and arrows, making one move at a time with your finger. Use Step Back and Step Forward to review the moves. • Auto Watch the cube solve itself. Adjust the playback speed or pause to take a closer look at any move. Hints are available in Try Mode at shuffle level 2 or higher. 【6】Solve without hints and collect stars Try Mode tracks your progress for each combination of 2 to 6 colors and shuffle levels 1 to 25. Complete a puzzle without using any hints to earn a star for that combination. Fill your records chart with stars and see how far you've come! You can check your completion records from the main menu or after completing a puzzle. 【7】Save personal bests and challenge Game Center records Time Mode saves your best time for each color count when you complete a puzzle without hints. Connect to Game Center to see the top-ranked player's name and time for each color count. Use the leading times as your next goal and aim for a faster solve! ◆ Simple Controls • Swipe the background to rotate the entire cube and view it from different angles. • Swipe a colored tile to turn its row or column. • Solve the puzzle by making each of the six faces a single, matching color. Whether you want a quick break or time to think through a challenge, choose your colors and difficulty, and enjoy the satisfaction of solving the cube.
Screenshots
Verdict
The clearest difference is update cadence: 3D Puzzle Game「VariableCube」 at every 5 days against Sudoku Tutor's every 3 weeks. Sudoku Tutor's advantage is iOS requirement (17.6 vs 26.2). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Sudoku Tutor ships an update every 3 weeks, 3D Puzzle Game「VariableCube」 every 5 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.
| Parameter | Sudoku Tutor | 3D Puzzle Game「VariableCube」 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 13 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Kenichi Nakagawa | naohito fukunishi |
In-app purchases
Sudoku Tutor
No in-app purchases
3D Puzzle Game「VariableCube」
No in-app purchases
Questions
Is Sudoku Tutor free?
Is 3D Puzzle Game「VariableCube」 free?
Do Sudoku Tutor or 3D Puzzle Game「VariableCube」 have ads?
Which is updated more often, Sudoku Tutor or 3D Puzzle Game「VariableCube」?
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