Comparison

Bond Breaker vs Empty.

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

Head to head
About

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.

Highlights
  • Atomic and molecular simulation
  • Real-world physics principles
  • Interactive scientific tools
  • Educational gameplay
  • Bond formation and breaking mechanics
Features
Read 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!

About

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.

Highlights
  • Unique room rotation puzzles
  • One-touch controls
  • No ads or paid content
  • Accessible for all ages
  • 25+ handcrafted levels
  • Original soundtrack
Features
Read 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

Bond Breaker4 screens
Empty.4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Bond Breaker ships an update every 2 weeks, Empty. monthly. The most recent releases landed on September 6, 2026 and September 22, 2026 respectively.

Scorecard4 real differences · 6 level
Bond Breaker versus Empty.: the parameters behind the verdict, then further details
ParameterBond BreakerEmpty.
PriceFreeFree
Rating4.6 (14 ratings)4.8 (2.4K ratings) — better
Positive reviews89.5% of reviews93.1% of reviews — better
Number of ratings142.4K — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better12.0
Further details — not scored
Size81 MB88 MB
Age rating4+4+
DeveloperTestTubeGamesMaksym Dzitsiuk

Customer experience

Bond Breaker

All ratings14 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews19 reviews
Positive89.5%
Neutral5.3%
Negative5.3%

Empty.

All ratings2,372 ratings
Positive95.3%
Neutral1.5%
Negative3.2%
Written reviews677 reviews
Positive93.1%
Neutral2.7%
Negative4.3%

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

None

Bond Breaker

No in-app purchases

None

Empty.

No in-app purchases

Questions

Is Bond Breaker free?
Bond Breaker is free to download, with no in-app purchases.
Is Empty. free?
Empty. is free to download, with no in-app purchases.
Which has better reviews, Bond Breaker or Empty.?
Empty. is rated higher. Bond Breaker averages 4.6 out of 5 from 14 ratings, while Empty. averages 4.8 from 2.4K ratings.
Do Bond Breaker or Empty. have ads?
Neither Bond Breaker nor Empty. shows ads.
Which is updated more often, Bond Breaker or Empty.?
Bond Breaker ships an update every 2 weeks, and Empty. monthly. Most recently, Bond Breaker was updated on September 6, 2026 and Empty. on September 22, 2026.

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