Comparison

Bond Breaker vs Fly Challenge

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

Fly Challenge

Build and race custom airplanes in this high-flying simulator. Master speed, customize parts, and perform extreme landings to become the top pilot. Experience thrilling aerial races and progress to advanced aircraft.

Highlights
  • Build and customize airplanes
  • Compete in high-speed races
  • Master extreme landings
  • Merge plane parts for speed
  • Earn money and expand fleet
  • Realistic flight simulation
Features
Read full description

Get ready to race like never before in Fly Challenge, the ultimate racing game where speed meets skill! In this high-flying game, you'll build a plane from the ground up and compete in heart-pounding races against the clock. Whether you're new to plane games and racing or a seasoned pro, this flying simulator will have you hooked! In this airplane game, you’ll learn to fly and master the art of speed in the sky. Customize your airplane with different wings, engines, and wheels to create the fastest plane possible. Merge plane parts to boost your speed and stay airborne for a longer time in this fly simulator. Take on intense flight challenges as you navigate tight turns and perform extreme landings with the precision of a pro pilot! This fly simulator isn’t your typical plane game or helicopter simulator. It’s a thrilling racing game where you start with a simple plane and progress by earning money the further your flight goes. Whether you're zooming through the air or maneuvering in this fly game, the competition is fierce. Feel the rush as you race in the air and strive to be the top flight pilot of our airplane game. Other jet games or planes games are not this immersive! Airplane Simulator Features: Racing and Flying Simulator: Learn to fly professionally, compete in high-speed airplane races, and perform extreme landings! Simple Builder Games Mechanics: To build a plane, merge plane parts to boost the speed of your pocket planes and customize your airplanes for maximum performance. Extreme Landings: Perfect your landing skills to avoid any plane crash and get to the finish line safe and sound in this flight game! Pilot Life: Take on the role of a competitive flight pilot and avoid any plane crash in this ultimate flying game. Real Flight Simulator: Experience the thrill of a realistic plane simulator combined with the excitement of a flight pilot simulator. Planes Control: Master the controls of various airplanes, avoiding any airplane crash, in this intense flight pilot simulator. Plane Tycoon: Complete every level of our flight game to earn more money, expand your racing fleet, and dominate the skies in this unique mix of idle racing and flying games! Think you have what it takes to win the ultimate sky race? Download our pilot simulator now and start your journey from simple planes to advanced aircraft to become the top race pilot of all plane games!

Screenshots

Bond Breaker4 screens
Fly Challenge4 screens

Verdict

The call

The clearest difference is review sentiment: Bond Breaker at 89% against Fly Challenge's 27%. Bond Breaker also leads on in-app purchases (none vs 20) and ads (none vs shown). Fly Challenge's advantage is ratings volume (1.3K vs 14). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Fly Challenge sells 20 one-off in-app purchases. Bond Breaker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bond Breaker holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Fly Challenge has 1.3K 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 27% of Fly Challenge's.

UpkeepUpdate frequency

Bond Breaker ships an update every 2 weeks, Fly Challenge every 5 months. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

Scorecard8 real differences · 2 level
Bond Breaker versus Fly Challenge: the parameters behind the verdict, then further details
ParameterBond BreakerFly Challenge
PriceFreeFree
Rating4.6 (14 ratings) — better4.2 (1.3K ratings)
Positive reviews89.5% of reviews — better26.6% of reviews
Number of ratings141.3K — better
Update frequencyEvery 2 weeks — betterEvery 5 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better13.0
Further details — not scored
Size81 MB400 MB
Age rating4+12+
DeveloperTestTubeGamesFreeplay LLC

Customer experience

Bond Breaker

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

Fly Challenge

All ratings1,299 ratings
Positive79.8%
Neutral4.1%
Negative16.1%
Written reviews459 reviews
Positive26.6%
Neutral10.0%
Negative63.4%

Bugs and requests

Bond Breaker

Not enough reviews yet to summarise bugs or requests.

Fly Challenge

Reported bugs

3 issues
  • Invisible ceiling on volcano/lava level
  • Plane gets stuck and can't progress
  • Game progress gets lost or reset

Requested features

3 requests
  • More levels and content
  • Fix the impossible volcano/lava level
  • Reduce the number of ads

In-app purchases

None

Bond Breaker

No in-app purchases

20 purchases

Fly Challenge

One-time20
  • Massive Earning$0.99
  • Big Milestone$0.99
  • 10 Ticket$1.99
Show 17 more
  • Coin Rain$2.99
  • Small Coin Pack$2.99
  • No Ads$2.99
  • Gem Rain$3.99
  • No-Ads one time offer$3.99
  • Small Gems Pack$3.99
  • Starter Pack$3.99
  • Skip it!$4.99
  • 30 Ticket$4.99
  • Medium coin pack$5.99
  • Medium Gem Pack$6.99
  • Richie Pilot$9.99
  • Large Coin Pack$9.99
  • 100 Ticket$9.99
  • Legendary Pack$14.99
  • Large Gem Pack$14.99
  • Special Pilot$19.99

Questions

Is Bond Breaker free?
Bond Breaker is free to download, with no in-app purchases.
Is Fly Challenge free?
Fly Challenge is free to download, with in-app purchases available.
Which has better reviews, Bond Breaker or Fly Challenge?
Bond Breaker is rated higher. Bond Breaker averages 4.6 out of 5 from 14 ratings, while Fly Challenge averages 4.2 from 1.3K ratings.
Do Bond Breaker or Fly Challenge have ads?
Fly Challenge shows ads; Bond Breaker does not.
Which is updated more often, Bond Breaker or Fly Challenge?
Bond Breaker ships an update every 2 weeks, and Fly Challenge every 5 months. Most recently, Bond Breaker was updated on October 15, 2026 and Fly Challenge on October 20, 2026.

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