Comparison

QA² vs Bauhaus Echo

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

Head to head
About

QA²

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■ 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

Bauhaus Echo

Features
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BAUHAUS ECHO — Where Art Meets Memory A stunning visual memory puzzle inspired by the Bauhaus art movement. Thousands of hand-curated geometric tiles across multiple palettes, wrapped in a meditative gameplay loop. FIVE GAME MODES CLASSIC — Memorize the pattern, watch the tiles shuffle, rebuild from memory. SPEED — Tiles appear one at a time. Place each before the next arrives. ENDLESS — Tiles keep coming, the tempo rises, your memory gets pushed. Chase your high score. MEMORY — Classic pairs matching, reimagined with Bauhaus tiles. ZEN — No timer, no score, no pressure. Compose freely and share your work. FEATURES • 500+ core Bauhaus tiles plus 23 downloadable packs — Bauhaus Blocks palettes (Rand's Brand, Dreaming Darkly, Provably Pop, Pastel Party) and curated NFT collections (Mondrian, NFT-isse, Enzos, Based Vitalik, Renascence, Good Boi Society, and more) • MIX picker combines your favorite packs into one shuffled tile pool, automatically capped to fit GPU memory • 5 game modes × 4 grid sizes (2×2 to 5×5) × 3 difficulty levels • Online leaderboards for the 4 scored modes • Hint system, milestone progression, 13 original music tracks • Clean, intuitive touch controls • No internet required — play anywhere PRIVACY We collect anonymous analytics to improve the game. Personalized ads require your explicit consent at first launch. Remove Ads is a one-time in-app purchase that disables all ads and supports development. Questions or feedback: johnwmurphy@gmail.com

Screenshots

QA²4 screens
Bauhaus Echo4 screens

Verdict

The call

The clearest difference is in-app purchases: QA² at none against Bauhaus Echo's 1. QA² also leads on ads (none vs shown). Bauhaus Echo's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence 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. Bauhaus Echo sells 1 one-off in-app purchase. QA² asks for nothing beyond the download.

UpkeepUpdate frequency

QA² ships an update every 3 weeks, Bauhaus Echo monthly. The most recent releases landed on September 9, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 3 level
QA² versus Bauhaus Echo: the parameters behind the verdict, then further details
ParameterQA²Bauhaus Echo
PriceFreeFree
Update frequencyEvery 3 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size181 MB124 MB
Age rating4+4+
DeveloperTISI IncorporatedSuch Software

In-app purchases

None

QA²

No in-app purchases

1 purchases

Bauhaus Echo

One-time1
  • Remove Ads$1.99

Questions

Is QA² free?
QA² is free to download, with no in-app purchases.
Is Bauhaus Echo free?
Bauhaus Echo is free to download, with in-app purchases available.
Do QA² or Bauhaus Echo have ads?
Bauhaus Echo shows ads; QA² does not.
Which is updated more often, QA² or Bauhaus Echo?
QA² ships an update every 3 weeks, and Bauhaus Echo monthly. Most recently, QA² was updated on September 9, 2026 and Bauhaus Echo on September 12, 2026.

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