EquationSolve vs QQTazen
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
EquationSolve
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EquationSolve is an educational spelling-to-math game that challenges players to convert words into numerical equations. Each letter has a point value, and players must construct the correct mathematical equation that equals the word's total value. The game features multiple difficulty levels, from simple 3-4 letter words to complex phrases, with optional time limits to increase the challenge. Players build equations using addition and other mathematical operations, then calculate the final result. Correct answers earn points while wrong answers deduct them. The app includes a leaderboard system to track high scores across different difficulty levels.
QQTazen
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QQTazen is a relaxing offline sudoku game designed for players who enjoy pure logic, clean design, and satisfying puzzle solving. Whether you are a beginner learning the basics or a sudoku expert looking for a daily brain challenge, QQTazen offers a smooth and enjoyable single-player experience you can play anytime, anywhere. Train your mind with carefully crafted sudoku puzzles across multiple difficulty levels. Start with easy grids to build confidence, then move on to harder challenges that test your logic, focus, and problem-solving skills. Every puzzle is designed to be both fair and rewarding, giving you the perfect balance of relaxation and mental exercise. With a simple interface and intuitive controls, QQTazen keeps the experience focused on what matters most: solving puzzles. Take notes, spot patterns, avoid mistakes, and enjoy the satisfying moment when every number falls into place. No distractions, no complicated systems—just classic sudoku gameplay in a polished mobile format. Because QQTazen is fully offline, you can enjoy your favorite number puzzles wherever you are. Play during a commute, on a break, while traveling, or whenever you want a calm and meaningful challenge without needing an internet connection. Features: - Classic single-player sudoku gameplay - Play offline anytime, anywhere - Multiple difficulty levels for all skill levels - Clean and easy-to-use interface - A relaxing brain-training experience - Great for both beginners and experienced players If you love number puzzles, logic games, and peaceful offline challenges, QQTazen is the perfect sudoku companion for your daily routine.
Screenshots
Verdict
EquationSolve and QQTazen are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | EquationSolve | QQTazen |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 6 MB | 9 MB |
| Age rating | 4+ | 17+ |
| Developer | Acunalan Tekin | Tuyet Trinh Nguyen Thi |
In-app purchases
EquationSolve
No in-app purchases
QQTazen
No in-app purchases









