QA² vs PlusFix
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- 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
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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!
PlusFix
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This app offers a new kind of puzzle game, featuring intuitive controls and a variety of stages. Simple yet thought‑provoking, it’s enjoyable for everyone.
Screenshots
Verdict
The clearest difference is in-app purchases: QA² at none against PlusFix's 3. QA² also leads on ads (none vs shown). PlusFix's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (13.0 vs 15.0). 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
Both are free to download. PlusFix sells 3 one-off in-app purchases. QA² asks for nothing beyond the download.
QA² ships an update every 3 weeks, PlusFix every 2 days. The most recent releases landed on September 25, 2026 and October 7, 2026 respectively.
| Parameter | QA² | PlusFix |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 180 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | TISI Incorporated | young jun Cho |
In-app purchases
QA²
No in-app purchases
PlusFix
- Unlimited ZeroPoint$3.99
- Ad-Free Experince$5.99
- Full Level Access$7.99
