Comparison

QA² vs Fermat's Math Puzzle

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

Head to head
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!

About

Fermat's Math Puzzle

Features
Read full description

Merge the numbers nature loves. Fermat's Math Puzzle is a relaxing merge puzzle built on the most beautiful ideas in mathematics. Tap an empty square to place a tile — when two neighbors are consecutive Fibonacci numbers (1+1, 1+2, 2+3, 3+5…), they merge into the next one. If the result meets another neighbor, the chain keeps going, and every link multiplies your score by the golden ratio φ (1.618…). Features • One tap to play — you only decide where to place. A round fits in a coffee break. • Chain reactions — every merge blooms into a spiral of particles and a chord climbing a perfect fifth. • Golden ratio bonus — chains multiply your score by φ, then φ², then φ³… • Swap the NEXT tile — three swaps per game to get you out of a tight board. • Daily Challenge — everyone in the world gets the same tiles today. • Game Center leaderboards — compare your best score and your daily rank worldwide. Built out of mathematics Everything you see and hear follows the math: • The specks drifting in the background sit on Fermat spirals at the golden angle (137.5°), the same arrangement as seeds in a sunflower head. • Tile colors are spaced around the hue wheel by the golden ratio, so neighboring numbers stay as far apart in color as possible. • The title screen is a golden spiral, widening by φ every quarter turn. • The soundtrack is generated on your device as you play, tuned in just intonation (pure ratios 1 : 9/8 : 5/4 : 3/2 : 5/3), with melodies that walk the scale in Fibonacci steps. You might like this if you • enjoy 2048 and other merge puzzles • want a few quiet minutes between tasks • like it when math, color, and sound turn out to be the same thing About ads No forced ads, ever. Nothing interrupts a game. An ad plays only when you choose a reward — continuing a run, or refilling your swaps — and the one-time Premium purchase removes even those. Plays offline; a connection is only needed for leaderboards and reward ads.

Screenshots

QA²4 screens
Fermat's Math Puzzle4 screens

Verdict

The call

The clearest difference is in-app purchases: QA² at none against Fermat's Math Puzzle's 1. QA² also leads on ads (none vs shown) and iOS requirement (15.0 vs 26.0). Fermat's Math Puzzle's advantage is update cadence (weekly vs every 3 weeks). 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. Fermat's Math Puzzle sells 1 one-off in-app purchase. QA² asks for nothing beyond the download.

UpkeepUpdate frequency

QA² ships an update every 3 weeks, Fermat's Math Puzzle weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 4 level
QA² versus Fermat's Math Puzzle: the parameters behind the verdict, then further details
ParameterQA²Fermat's Math Puzzle
PriceFreeFree
Positive reviews50.0% of reviews—
Update frequencyEvery 3 weeksWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size180 MB8 MB
Age rating4+4+
DeveloperTISI IncorporatedKenichi Horiuchi

In-app purchases

None

QA²

No in-app purchases

1 purchases

Fermat's Math Puzzle

One-time1
  • Premium$3.99

Questions

Is QA² free?
QA² is free to download, with no in-app purchases.
Is Fermat's Math Puzzle free?
Fermat's Math Puzzle is free to download, with in-app purchases available.
Do QA² or Fermat's Math Puzzle have ads?
Fermat's Math Puzzle shows ads; QA² does not.
Which is updated more often, QA² or Fermat's Math Puzzle?
QA² ships an update every 3 weeks, and Fermat's Math Puzzle weekly. Most recently, QA² was updated on October 24, 2026 and Fermat's Math Puzzle on October 28, 2026.

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