SOINSU math puzzle vs Ring in Ring
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
Ring in Ring
Trace and connect rings of different sizes to create larger ones. Complete patterned rings to unlock new connections. Enjoy a relaxing experience with no time limits and global leaderboards.
- Trace and connect rings
- Create patterned rings
- No time limit gameplay
- Tranquil BGM and sound effects
- Global score rankings
- Satisfying ring generation
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---Rules--- Trace and connect rings of different sizes Lift your finger, and the rings gather into one spot When a ring is completely filled, it gets a special pattern Connect patterned rings of the same size to create an even bigger ring The game ends when no more connections are possible ---Feature--- - With no time limit, you can enjoy the game at your own pace. - Experience gameplay free from flashy distractions. - Immerse yourself in the tranquil beauty of the BGM and the satisfying sound effects when tracing or generating rings, designed to relax and enchant. - Challenge players from around the globe in the score rankings. - It's easy to dive into, but once you start, you'll find it hard to stop.
Screenshots
Verdict
The clearest difference is review sentiment: SOINSU math puzzle at 90% against Ring in Ring's 71%. SOINSU math puzzle also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, 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. SOINSU math puzzle sells 2 one-off in-app purchases and Ring in Ring sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly weekly. Both last shipped on September 9, 2026.
| Parameter | SOINSU math puzzle | Ring in Ring |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 90.0% of reviews — better | 71.4% of reviews |
| Update frequency | Weekly | Weekly |
| 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 | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 105 MB | 121 MB |
| Age rating | 4+ | 4+ |
| Developer | GAIBAKO co., Ltd. | Strawberry Gohan |
Customer experience
SOINSU math puzzle
Ring in Ring
In-app purchases
SOINSU math puzzle
- Add no time limit mode$0.99
- Hidden Ads$2.99
Ring in Ring
- Plus [long chain] buttons$1.99
- Remove Ads (Permanently)$2.99
Questions
Is SOINSU math puzzle free?
Is Ring in Ring free?
Do SOINSU math puzzle or Ring in Ring have ads?
Which is updated more often, SOINSU math puzzle or Ring in Ring?
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