Plusris vs SOINSU math puzzle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Plusris
A free brain training puzzle game where you trace numbers with one finger, add them to make 10, and clear the board. It offers thousands of problems, including daily and weekly challenges, to enhance cognitive skills.
- One-finger gameplay
- Brain training puzzles
- Addition and number tracing
- Thousands of problems
- Daily and weekly challenges
- Hint system
Read full descriptionHide full description
Play with just one finger. One stroke brain training addition puzzle game to improve your brain. A simple yet profound free brain training puzzle game using numbers. The rules are simple. Trace the numbers with your fingers, add them, make them 10 and erase them. If you erase everything, it's clear. Number of problems. We have prepared 15,000 questions. Daily and weekly questions are available from a further 32,000 questions. Try to take advantage of the hints on difficult problems. However, hints cannot be used for weekly problems, so please consult with us on SNS before playing. Try these free brain training puzzle games, ranging from easy to difficult problems.
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
Read full descriptionHide full description
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 in-app purchases: Plusris at none against SOINSU math puzzle's 2. SOINSU math puzzle's advantage is update cadence (weekly vs every 6 weeks) and review sentiment (90% vs 67%). On price, ads 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. SOINSU math puzzle sells 2 one-off in-app purchases. Plusris asks for nothing beyond the download.
Plusris ships an update every 6 weeks, SOINSU math puzzle weekly. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.
| Parameter | Plusris | SOINSU math puzzle |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | 90.0% of reviews — better |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 160 MB | 105 MB |
| Age rating | 12+ | 4+ |
| Developer | MASAYOSHI TADA | GAIBAKO co., Ltd. |
Customer experience
Plusris
SOINSU math puzzle
In-app purchases
Plusris
No in-app purchases
SOINSU math puzzle
- Add no time limit mode$0.99
- Hidden Ads$2.99









