Bond Breaker vs Empty.
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Bond Breaker
Engage with atomic physics in this puzzle game where you start as a proton and build up to atoms and molecules. Utilize scientific tools like lasers and microscopes to manipulate matter and learn real-world physics concepts.
- Atomic and molecular simulation
- Real-world physics principles
- Interactive scientific tools
- Educational gameplay
- Bond formation and breaking mechanics
Read full descriptionHide full description
Pit yourself against atomic physics in Bond Breaker, a new puzzle game based on real nano-scale science. You start this game in the smallest way possible - as a single proton, without even a single atom to call your own. But with a little luck, and a lot of physical chemistry, you'll grow into an atoms, smash together into molecules, or break apart again using lasers, tunneling microscopes, and heat. Created by TestTubeGames and scientists at the CaSTL research center at UC Irvine, this is truly the most accurate physics engine to date. After all, what other game is correct down to the atomic level? When you make and break molecular bonds, you’ll encounter real forces and real physics. This isn’t just simple stuff, either! You'll learn about... The forces that bind molecules together How lasers can excite atoms Why water sticks together into drops What happens when you heat something up And much, much more. Simply put, this is the most fun you can have without buying your own Scanning Tunneling Microscope!
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
Read full descriptionHide full description
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.
Screenshots
Verdict
The clearest difference is ratings volume: Empty. at 2.4K against Bond Breaker's 14. Empty. also leads on rating (4.8 vs 4.6). Bond Breaker's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (6.0 vs 12.0). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Empty. holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Empty. has 2.4K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 89% of Bond Breaker's written reviews are positive against 93% of Empty.'s.
Bond Breaker ships an update every 2 weeks, Empty. monthly. The most recent releases landed on September 6, 2026 and September 22, 2026 respectively.
| Parameter | Bond Breaker | Empty. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (14 ratings) | 4.8 (2.4K ratings) — better |
| Positive reviews | 89.5% of reviews | 93.1% of reviews — better |
| Number of ratings | 14 | 2.4K — better |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 81 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | TestTubeGames | Maksym Dzitsiuk |
Customer experience
Bond Breaker
Empty.
Bugs and requests
Bond Breaker
Not enough reviews yet to summarise bugs or 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
In-app purchases
Bond Breaker
No in-app purchases
Empty.
No in-app purchases









