Comparison

SimplePlanes vs Genius Killer 2 Sandbox

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

Head to head
About

SimplePlanes

Design, build, and fly your own aircraft with realistic physics. Explore a vast community-created library of over 250,000 planes or test your creations in challenging scenarios.

Highlights
  • Build custom airplanes with modular parts
  • Realistic flight physics simulation
  • Download over 250,000 community-created aircraft
  • Engage in flight challenges
  • Sandbox mode for unrestricted building
  • Educational tutorials on airplane design
Features
Currently charting
Read full description

Build airplanes by snapping parts together, designing wing sections, and attaching engines. At any time, you can strap yourself into the cockpit and see how it flies with realistic physics. If you're not in the mood for building, over 250,000 airplanes are available to download for free. BUILD AIRPLANES You have the tools you'll need to bring any airplane to life. Snap parts together to build your airplane's body. Place engines to add thrust. Design and attach wings and then strap yourself into the cockpit and see how it flies. DOWNLOAD AIRPLANES Over 250,000 airplanes are available to download for free from SimplePlanes.com. Find anything from old WW2 bombers to next-generation fighters to sci-fi spacecraft. You can upload your own airplanes and rise through the ranks from a bronze builder to a gold level builder. DYNAMIC FLIGHT MODEL Flight simulation at its finest. Every little change you make in the designer impacts how the airplane flies. Weight distribution, thrust, lift, and drag are all calculated continuously while flying. Parts can break off in spectacular fashion while flying due to over-stress or by hitting something. The fun won't stop there though. You can keep on flying even with a missing wing if you've got the skills. SANDBOX MODE Use all available parts to build airplanes with no restrictions. The sky is the limit. Literally. CHALLENGES Climb into the cockpit of one of your custom aircraft and see how it does in the challenges. Land on aircraft carriers, dodge surface-to-air missiles, race through courses, and so much more. EDUCATIONAL Tutorials will help players learn the basics of real airplane design and the considerations that need to be taken when airplanes are made.

About

Genius Killer 2 Sandbox

Design and construct unique destructive machines in an open-world sandbox. Engage in combat with various enemies across land, sea, and air using your custom-built creations. The intuitive editor allows for complex control schemes for any vehicle.

Highlights
  • Build destructive machines
  • Intuitive editor
  • Open world combat
  • Create flying vehicles
  • Build water transport
  • Secret weapon acquisition
Features
Read full description

Build destructive machines in this unique sandbox game. Only here can you create the perfect weapon for destruction. An ideal constructor will help you with this, combining simplicity and convenience and at the same time rich functionality. Sandbox games will provide you with tons of fun. The open world of the game is filled with dangerous enemies. You can fight opponents on the map. There are military bases here, guarded by watchtowers. Floating opponents will not let you get bored on the water. The Flying Will Destroy everything in the sky. Only in our sandbox game can you build perfect constructions. Create controls for them the way you want. The game editor allows you to create controls for a specific task, whether you craft an airplane or a submarine. Features of the game. Intuitive editor. Open world. The ability to create a flying vehicle. Blocks for creating water transport. Secret weapon. Take which is possible only by destroying the crystals, guarded by rocket launchers. What are we planning to add to the game. Full multiplayer. For the ability to play sandbox with friends online. More blocks for weapons. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy https://patyukgames.blogspot.com/2017/02/normal-0-false-false-false-ru-x-none-x.html

Screenshots

SimplePlanes4 screens
Genius Killer 2 Sandbox4 screens

Verdict

The call

The clearest difference is price: Genius Killer 2 Sandbox at Free against SimplePlanes's $5.99. SimplePlanes's advantage is rating (4.6 vs 3.3) and in-app purchases (none vs 7). On 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

Genius Killer 2 Sandbox is free to download; SimplePlanes costs $5.99 up front. Genius Killer 2 Sandbox sells 7 in-app purchases, starting at $3.99 per month. SimplePlanes asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SimplePlanes holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: SimplePlanes has 3.1K ratings behind it against 83, so its average is the more settled of the two. Written reviews point the same way: 83% of SimplePlanes's written reviews are positive against 51% of Genius Killer 2 Sandbox's.

UpkeepUpdate frequency

SimplePlanes ships an update every 3 months, Genius Killer 2 Sandbox every 10 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard10 real differences · 1 level
SimplePlanes versus Genius Killer 2 Sandbox: the parameters behind the verdict, then further details
ParameterSimplePlanesGenius Killer 2 Sandbox
Price$5.99Free — better
Rating4.6 (3.1K ratings) — better3.3 (83 ratings)
Positive reviews83.4% of reviews — better50.7% of reviews
Number of ratings3.1K — better83
Update frequencyEvery 3 months — betterEvery 10 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#94 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size335 MB228 MB
Age rating4+17+
DeveloperJundroo, LLCDarya Vladislavovna

Customer experience

SimplePlanes

All ratings3,024 ratings
Positive89.9%
Neutral2.9%
Negative7.1%
Written reviews879 reviews
Positive83.4%
Neutral5.5%
Negative11.1%

Genius Killer 2 Sandbox

All ratings82 ratings
Positive57.3%
Neutral9.8%
Negative32.9%
Written reviews73 reviews
Positive50.7%
Neutral21.9%
Negative27.4%

User reviews

SimplePlanes

From 3.1K App Store ratings

What we love

  • 👍 Fun and creative sandbox
  • 🚀 Powerful building mechanics
  • 📥 Ability to download community-created planes
  • 🎨 Customizable vehicles
  • ⚙️ Realistic physics

Room to improve

  • 🐛 Bugs and glitches (crashes, invisible collisions, control issues)
  • 🚫 Lack of mod support on mobile
  • 🌍 Limited map/island selection on mobile
  • 🔍 Difficulty finding/downloading larger planes on mobile
  • 🎮 Awkward mobile controls

Genius Killer 2 Sandbox

From 83 App Store ratings

What we love

  • 👍 Great creativity and textures
  • 👍 Very good game overall
  • 👍 Good building game
  • 👍 Awesome game with cool stuff
  • 👍 Love the game

Room to improve

  • 🐛 Game is full of bugs
  • 🐛 Game is unplayable
  • 🐛 Too many ads
  • 🐛 Difficult to build
  • 🐛 Game crashes frequently

Bugs and requests

SimplePlanes

Reported bugs

5 issues
  • Undo function causing plane glitches
  • Autopilot issues (retracting landing gear)
  • Invisible collision problems
  • Planes spawning in ground/air unexpectedly
  • Graphical/performance issues on older devices

Requested features

6 requests
  • Add multiplayer mode
  • Implement more advanced damage/failure models
  • Expand map selection (e.g. desert island, underwater view)
  • Improve AI behavior and add more combat-focused missions
  • Introduce new vehicle types (e.g. tanks, ships, trains)
Show 1 more
  • Add more advanced building tools (e.g. individual part movement, custom cockpits)

Genius Killer 2 Sandbox

Reported bugs

53 issues
  • Workshop keeps loading nonstop
  • Game doesn't work on mobile
  • Game is full of bugs
  • Can't delete blocks
  • Tutorial only on YouTube
Show 48 more
  • Ads appear every time to test a build
  • Some items are unclear
  • Touchscreen won't work on older devices
  • Game is always crashing
  • Deleting and control systems are broken
  • Physics are confusing
  • Floating sphere in terrain
  • Water under ground vibrates stuff
  • Lamps have no connection points
  • Stuff attaches to other laser's back
  • Adding controls turns other things on/off
  • Hydraulics cause build to flip out
  • Cannot disable sound
  • Tank treads don't work
  • DLC doesn't work
  • Ads are pitch black and lead to websites
  • Game crashes when loading bigger blueprints
  • Cannot delete or customize anything without restarting
  • Cannot build planes (DPAD issue)
  • Cannot control anything
  • No download in the game
  • Touchscreen refuses to work half the time
  • Ads to get stuff
  • Game stops in air
  • Game crashes when pressing load button
  • Larger structures get very glitchy
  • Tracks get out and stuck
  • Memory leak, app gets slower over time
  • Delete block function doesn't work for single blocks
  • Game freezes
  • Game crashes after testing builds
  • Tracks get out and stuck
  • Controls are hard with planes
  • Plane crashes and breaks
  • Too much force on a block breaks it
  • Game freezes and crashes from too many saves
  • FPS issues (30-60)
  • Cannot move on phone
  • Over half of the stuff cannot be used
  • Game crashes on iPhone 6
  • Game crashes on iPhone 5s
  • Buttons not suited for iPhone
  • Items from Android not on iPhone (laser)
  • Cannot press load button without game freezing and crashing
  • Game crashes when entering
  • Blocks don't press on first try
  • Saves of builds sometimes break
  • Low FPS with large builds

Requested features

23 requests
  • More maps
  • Colorization of parts
  • Add gears for machines
  • Add ballast tanks and torpedo tubes
  • Mobile friendly version
Show 18 more
  • Workshop feature
  • Pre-built engines and flaps
  • Multiplayer mode
  • Search functionality
  • More destructive creations
  • More blocks and items
  • Add tutorial
  • Add description for items
  • Add Spanish language option
  • Change speed of hydraulics
  • Add time manipulation (slow-mo/fast-forward)
  • Add ropes and cables
  • Add more enemies
  • Make gold easier to obtain
  • Add a handbook for creating items
  • Make silver skin purchasable by gold
  • Improve graphics and interface
  • Add download feature

In-app purchases

None

SimplePlanes

No in-app purchases

7 purchases

Genius Killer 2 Sandbox

Subscriptions1
  • PRO user subscription$3.991 Month
One-time6
  • 1000 Gold$2.99
  • 2500 Gold$5.99
  • Silver Skin$6.99
Show 3 more
  • 5000 Gold$10.99
  • 10 000 Gold$19.99
  • 30 000 Gold$99.99

Questions

Is SimplePlanes free?
SimplePlanes costs $5.99, with no in-app purchases.
Is Genius Killer 2 Sandbox free?
Genius Killer 2 Sandbox is free to download, with in-app purchases available.
Which has better reviews, SimplePlanes or Genius Killer 2 Sandbox?
SimplePlanes is rated higher. SimplePlanes averages 4.6 out of 5 from 3.1K ratings, while Genius Killer 2 Sandbox averages 3.3 from 83 ratings.
Do SimplePlanes or Genius Killer 2 Sandbox have ads?
Genius Killer 2 Sandbox shows ads; SimplePlanes does not.
Which is updated more often, SimplePlanes or Genius Killer 2 Sandbox?
SimplePlanes ships an update every 3 months, and Genius Killer 2 Sandbox every 10 months. Most recently, SimplePlanes was updated on November 6, 2026 and Genius Killer 2 Sandbox on November 3, 2026.

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