QA² vs Bauhaus Echo
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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!
Bauhaus Echo
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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
Verdict
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
Both are free to download. Bauhaus Echo sells 1 one-off in-app purchase. QA² asks for nothing beyond the download.
QA² ships an update every 3 weeks, Bauhaus Echo monthly. The most recent releases landed on September 9, 2026 and September 12, 2026 respectively.
| Parameter | QA² | Bauhaus Echo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 181 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | TISI Incorporated | Such Software |
In-app purchases
QA²
No in-app purchases
Bauhaus Echo
- Remove Ads$1.99









