Comparison

SOINSU math puzzle vs QA²

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Prime factorization gameplay
  • Brain training puzzles
  • Mental arithmetic practice
  • Cyber visuals
  • Trance music soundtrack
  • Multiple game modes
  • Prime number collection
Features
Read 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.

About

QA²

Engage in a unique puzzle game set in the quantum world. Swipe and match colorful blocks to create satisfying chain reactions and master various game modes. Challenge AI opponents and compete on global leaderboards.

Highlights
  • Quantum-themed puzzle gameplay
  • Satisfying chain reaction system
  • Multiple game modes (Rush, Depth, Flow, Overload)
  • VS AI mode with challenging opponents
  • Global leaderboards for competitive play
  • Brain training mechanics
Read full description

■ Welcome to the Quantum World QA2 is a fresh new puzzle game themed around quantum computing. Swipe and match colorful blocks to trigger massive chain reactions! ■ Satisfying Chain System Match blocks to trigger chain reactions. The satisfaction of watching blocks disappear one after another is truly addictive! Use timing and strategy to pull off huge combos. ■ Multiple Game Modes 【Rush Mode】 Race against the clock for the highest score! 【Depth Mode】 How deep can you go? Challenge yourself! 【Flow Mode】 Relax and play at your own pace. 【Overload Mode】 Push your limits! A challenge for advanced players. ■ Battle AI Anytime Featuring VS AI mode with powerful AI opponents. Enjoy intense battles even when playing solo. ■ Compete on Global Leaderboards Compete with players from around the world. Aim for the #1 spot in the global rankings! ■ Perfect For • Puzzle game enthusiasts • Players who love the thrill of chain reactions • Those looking to train their brain • Anyone curious about quantum computing • People seeking a quick gaming session Dive into the world of quantum puzzles!

Screenshots

SOINSU math puzzle4 screens
QA²4 screens

Verdict

The call

The clearest difference is review sentiment: SOINSU math puzzle at 90% against QA²'s 50%. SOINSU math puzzle also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (12.0 vs 15.0). QA²'s advantage is in-app purchases (none vs 2) and ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SOINSU math puzzle sells 2 one-off in-app purchases. QA² asks for nothing beyond the download.

UpkeepUpdate frequency

SOINSU math puzzle ships an update weekly, QA² every 3 weeks. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 2 level
SOINSU math puzzle versus QA²: the parameters behind the verdict, then further details
ParameterSOINSU math puzzleQA²
PriceFreeFree
Positive reviews90.0% of reviews — better50.0% of reviews
Update frequencyWeekly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size105 MB180 MB
Age rating4+4+
DeveloperGAIBAKO co., Ltd.TISI Incorporated

Customer experience

SOINSU math puzzle

Written reviews20 reviews
Positive90.0%
Neutral5.0%
Negative5.0%

QA²

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

2 purchases

SOINSU math puzzle

One-time2
  • Add no time limit mode$0.99
  • Hidden Ads$2.99
None

QA²

No in-app purchases

Questions

Is SOINSU math puzzle free?
SOINSU math puzzle is free to download, with in-app purchases available.
Is QA² free?
QA² is free to download, with no in-app purchases.
Do SOINSU math puzzle or QA² have ads?
SOINSU math puzzle shows ads; QA² does not.
Which is updated more often, SOINSU math puzzle or QA²?
SOINSU math puzzle ships an update weekly, and QA² every 3 weeks. Most recently, SOINSU math puzzle was updated on October 17, 2026 and QA² on October 12, 2026.

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