Empty. vs QuickMathMaster
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Empty.
A relaxing puzzle game designed to help you unwind and appreciate simplicity. Rotate rooms to clear them using intuitive one-touch controls. Enjoy a peaceful experience with a beautiful soundtrack and over 25 handcrafted levels.
- Unique room rotation puzzles
- One-touch controls
- No ads or paid content
- Accessible for all ages
- 25+ handcrafted levels
- Original soundtrack
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A relaxing puzzle game to unwind with. Each level teaches you to value simplicity in life. ‣ Unique puzzle mechanics — clear the room by rotating it! ‣ One-touch controls — play with one hand! ‣ No ads. No paid content. Supported by donations. ‣ Accessible for players of all ages. ‣ 25+ beautiful hand-crafted levels. ‣ Original soundtrack - a full length album. Learn the timeless concept — that less is more — that will contribute to your wellbeing in addition to simply joyfully passing time.
QuickMathMaster
Sharpen your mind with this fast-paced mental math game. Improve calculation speed, focus, and logic through three difficulty levels and timed challenges. Track your progress and aim for top ranks in a distraction-free environment.
- Three difficulty levels
- Fast-paced timed challenges
- Performance tracking
- Distraction-free interface
- Logic and memory improvement
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Is your brain getting lazy from relying too much on calculators? It's time to wake it up! Quick Math Master is a fast-paced mental math game designed to sharpen your mind, improve your calculation speed, and boost your focus. Whether you are a student looking to improve your math skills or an adult wanting to keep your brain active, this is the perfect gym for your mind. KEY FEATURES: 3 Difficulty Levels: Simple: Warm up with basic arithmetic. Perfect for beginners or a relaxing brain massage. Normal: The standard challenge. Test your speed and accuracy under pressure. Hard: For the true Math Masters! Complex mixed operations that will push your limits. Blazing Fast Gameplay: Race against the clock! Answer as many questions as possible within the time limit. The faster you answer, the higher your score. Track Your Growth: Get instant feedback on your performance. Can you achieve the legendary "S" Rank? Watch your calculation skills improve day by day. Distraction-Free Experience: Clean, vibrant interface with zero clutter. Just you, the numbers, and the challenge. Why play Quick Math Master? Improve memory and logic. Reduce calculator dependency. Fun and addictive brain training for all ages. Ready to challenge your brain? Download Quick Math Master now and start calculating!
Screenshots
Verdict
The clearest difference is in-app purchases: Empty. at none against QuickMathMaster's 1. Empty. also leads on ads (none vs shown) and ratings volume (2.4K vs 1). QuickMathMaster's advantage is rating (5.0 vs 4.8). On price, review sentiment, device support and iOS requirement 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. QuickMathMaster sells 1 one-off in-app purchase. Empty. asks for nothing beyond the download.
QuickMathMaster holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Empty. has 2.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 93% of Empty.'s written reviews are positive against 100% of QuickMathMaster's.
Empty. ships an update monthly, QuickMathMaster every 3 months. The most recent releases landed on October 7, 2026 and September 21, 2026 respectively.
| Parameter | Empty. | QuickMathMaster |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (2.4K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 92.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 2.4K — better | 1 |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 88 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Maksym Dzitsiuk | XINGHUA HE |
Customer experience
Empty.
QuickMathMaster
Bugs and requests
Empty.
Reported bugs
2 issues- Certain objects not disappearing as expected
- Glitches on specific levels
Requested features
3 requests- More levels and content
- Difficulty settings or options
- Ability to save progress
QuickMathMaster
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Empty.
No in-app purchases
QuickMathMaster
- Permanent Ad Removal$0.99
