Ultimate Sudoku App vs Crack the Code 4 Watch
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Ultimate Sudoku App
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The ultimate sudoku app Features: - Multiple difficulty levels - Smart hints & notes - Multiple languages - Stopwatch to track your time The integrated SAT solver ensures that each new sudoku is truly random and feels different from the previous one, while at the same time giving the ability to provide sudokus with more than one single solution
Crack the Code 4 Watch
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Crack the Code 4 Watch Can you crack the code? Test your logic and deduction skills with Crack the Code 4 Watch, a classic code-breaking game designed for Apple Watch. Enjoy two timeless puzzle games: Mastermind and Bulls and Cows, perfect for quick brain challenges on the go Two Games, One Challenge • Mastermind: Guess the secret code using color feedback. Every attempt brings you closer to the solution. • Bulls and Cows: A number-based deduction game where bulls mean correct digits in the right place and cows mean correct digits in the wrong place. Solve it in as few moves as possible. Designed for Apple Watch • Quick, fun, and challenging logic puzzles • Play anytime, anywhere—right from your wrist • Minimalist interface optimized for small screens Think fast, strategize smart, and crack the code. Download Crack the Code 4 Watch now and put your logic to the test.
Screenshots
Verdict
The clearest difference is price: Ultimate Sudoku App at Free against Crack the Code 4 Watch's $0.99. Ultimate Sudoku App also leads on update cadence (every 6 days vs every 6 weeks). On ads, in-app purchases, 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
Ultimate Sudoku App is free to download; Crack the Code 4 Watch costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ultimate Sudoku App ships an update every 6 days, Crack the Code 4 Watch every 6 weeks. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.
| Parameter | Ultimate Sudoku App | Crack the Code 4 Watch |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 6 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 16.4 — better | 16.6 |
| Further details — not scored | ||
| Size | 40 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Michele Yin | Bolo mobile, Inc |
In-app purchases
Ultimate Sudoku App
No in-app purchases
Crack the Code 4 Watch
No in-app purchases
Questions
Is Ultimate Sudoku App free?
Is Crack the Code 4 Watch free?
Do Ultimate Sudoku App or Crack the Code 4 Watch have ads?
Which is updated more often, Ultimate Sudoku App or Crack the Code 4 Watch?
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