Coin Line vs SOINSU math puzzle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Coin Line
A brain-training puzzle game where you merge coins of the same value to create higher denominations. Strategically switch and pile coins to clear them and achieve high scores, with five different currencies and special coins to aid your progress.
- Coin merging mechanics
- Five different currencies
- Special coins with bonus effects
- Upgrade system for gameplay enhancements
- World ranking leaderboards
- Brain training puzzle gameplay
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A brain training puzzle using money! Merge coins to turn them into big money. Five different currencies available: US Dollar, Euro, Japanese Yen, etc. BASIC RULES: Switch the coins wisely, and try to pile the same coins up. For example, if you pile five 1 cent coins, they turn into a 5 cent coin. Two 5 cent coins turn into a 10 cent coin. Every time the value change happens, the coins become 1 cent -> 5 cent -> 10 cent -> 50 cent -> $1. When five $1 coins turn into a $5 bill, and it disappears. Coins are added from the bottom. Make a value change happen as fast as you can and erase the coins effectively. When coins go over the line limit, the game is over. As the value change happens, you gain the corresponding score. When you make a chain of value changes happen, you'll get the higher score! Coin Line is a simple, yet profound, puzzle game that anyone can enjoy. 5 TYPES OF CURRENCIES: The game supports Japanese yen, US dollar, euro, Pound sterling, and Chinese Renminbi. You can change the currency at any time from the option screen. SPECIAL COINS: Sometimes a special coin with a certain icon will appear. If you eliminate these coins with a value change, the special effects, such as tripling the score and removing obstacle coins will be invoked. Aim for eliminating those coins! UPGRADE: According to the score you get, you'll receive coins. Use the coins to buy various upgrades at the shop screen. For example, you can get upgrades to heighten the line limit or strengthen the effect of the special coins. Upgrade yourself and aim for the higher score! WORLD RANKING: Support Game Center leaderboard rankings and achievements. Complete against your friends or players all over the world!
SOINSU math puzzle
Engage in a brain-training puzzle game focused on prime factorization. Anyone can learn the fun of numbers through this simple, time-killing activity. Enjoy the challenge of dividing numbers into prime factors with a high-tempo soundtrack.
- Prime factorization gameplay
- Brain training puzzles
- Mental arithmetic practice
- Cyber visuals
- Trance music soundtrack
- Multiple game modes
- Prime number collection
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SOINSU Math puzzles to stimulate your brain. Anyone can easily learn the fun of numbers through time-killing brain training. This is a simple game that can be enjoyed by even elementary school students to train their mental arithmetic skills. You can casually enjoy prime factorization, which is essential for mathematics. Let's enter the world of prime numbers with high-tempo trance music! You'll definitely be hooked! Choose a prime number that can evenly divide the numbers that appear. Repeat more and more until you reach a prime number, then select "SOSUU!" The next number will appear. When you clear it, the level will go up. As the level increases, the number of types of prime numbers increases. Aim to clear the high level! ●Basic rules: ◇This is a game where you do prime factorization. ●How to play: ◇Divide the number in the middle into prime factors ◇Choose a prime number that can divide the number and flick in that direction ◇If you answer correctly, it will be divided, so repeat ◇Repeat until it becomes a prime number ◇When it becomes a prime number, flick down (SOSUU!) ◇The level increases and the next number is displayed in the center. ◇If you can't answer within 5 seconds, it's a mistake. ◇If you make a mistake 3 times, the game is over. Even though it's easy to play, you'll definitely get hooked on the increasingly difficult problems! Now, let's have some fun! ●Function: ◇Simple and cyber visuals ◇Trance music that uplifts your mood ◇Game play that strengthens concentration ◇Casual game that can be completed in a short time ◇The prime number collection that can be collected is a threatening 168 pieces. ◇You can play the no time limit mode once by watching the video. ●Mode ◇Normal Time limit 5 seconds ◇Easy 10 seconds time limit ◇Hard Time limit 5 seconds Starts at level 21 ◇Unlimited time (paid) unlimited time ●Prime number collection ◇When you watch the video, one prime number collection will be released. ◇There are 168 prime numbers in total. It covers all 3-digit prime numbers. ◇Prime numbers can be seen in beautiful cyber visuals.
Screenshots
Verdict
The clearest difference is update cadence: SOINSU math puzzle at weekly against Coin Line's every 10 months. Coin Line's advantage is iOS requirement (10.0 vs 12.0). On price, review sentiment, ads and in-app purchases 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. Coin Line sells 1 one-off in-app purchase and SOINSU math puzzle sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Coin Line ships an update every 10 months, SOINSU math puzzle weekly. The most recent releases landed on October 31, 2026 and October 27, 2026 respectively.
| Parameter | Coin Line | SOINSU math puzzle |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (8 ratings) — better | — |
| Positive reviews | 88.5% of reviews | 90.0% of reviews — better |
| Number of ratings | 8 — better | — |
| Update frequency | Every 10 months | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 56 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | Keaton.com | GAIBAKO co., Ltd. |
Customer experience
Coin Line
SOINSU math puzzle
In-app purchases
Coin Line
- Premium Pass$2.99
SOINSU math puzzle
- Add no time limit mode$0.99
- Hidden Ads$2.99









