Comparison

Aircraft Engine vs HoppAR

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

Head to head
About

Aircraft Engine

Explore the intricate structure and operation of an aircraft engine in augmented reality. Utilize various view modes and animations to understand its mechanics. Simply target an instruction image with your device to bring the 3D engine to life.

Highlights
  • Augmented reality engine visualization
  • Multiple view modes
  • Interactive animations
  • 3D engine exploration
  • Target image recognition
Read full description

Aircraft Engine is an augmented reality application. You can discover the structure and operating of an aircraft engine thanks to different view modes and animations. 1 – Download and launch the app Aircraft Engine 2 – Target the instruction picture with your mobile device and visualize the 3D engine. If you don’t have the picture, you can download and print the visual here : http://aircraftengine.numix.fr/Target.pdf 3 – Move your mobile device around the picture, explore different view modes and turn-up the volume !

About

HoppAR

Experience rocket launches and landings in augmented reality. Control thrust vectoring, perform engine test fires, and customize rockets with your own colors. Explore a variety of real spacecraft and space mission scenarios.

Highlights
  • Augmented reality rocket launches
  • Manual thrust vectoring control
  • Rocket engine test fires
  • Customizable rocket coloring
  • Variety of real spacecraft models
  • Entry, Descent, and Landing simulations
  • Indoor and Outdoor AR modes
Features
Read full description

Launch and land your favorite rockets in Augmented Reality from your courtyard! Perform rocket engine test fires directly on your table. Manually control the Thrust Vectoring and perform your first landing at home! Color your favorite rocket and see it in action in Augmented Reality You can choose between many different rocket prototypes and real spacecrafts. Here are a few of them: the beloved StarHopper, the giant Starship MK1, and the hover test of the Dragon 2. Watch the Crew Dragon Demo Mission 2 leave the launch pad and the Falcon 9 first stage land back! Enjoy the Buran Orbiter and Energia Rocket conquer the sky, and many more spacecrafts to come! Not only rockets: enjoy the Perseverance Landing and the Sky-Crane maneuver in the "Last Minute of Terror" of the Entry Descend and Landing sequence. Fire a Raptor engine on your desk at home! Select between Indoor and Outdoor mode depending on where you are and the scale of the Rocket you want to launch. Apply filters to mimic the colors of your favorite planet and change the environmental conditions choosing among many different options: Rain, Thunderstorm, Snow and more Take a picture or record your best launch, share them with your friends with the #HoppAR hashtag and get into the Rocket Launcher's Social Wall Auto-renewable Subscription: Support app Development and new Rockets Addition (renewed on an annual basis) You get all mission unlocked with no limits for the time the subscription is active Non-Consumable Purchase: Instead of subscribing you might buy a single mission that will be unlocked with no time limit Let's HoppAR! (Disclaimer: This is app is not affiliated with any space company or its partners or customers)

Screenshots

Aircraft Engine3 screens
HoppAR4 screens

Verdict

The call

The clearest difference is review sentiment: HoppAR at 85% against Aircraft Engine's 25%. HoppAR also leads on rating (4.8 vs 2.1) and ratings volume (579 vs 18). Aircraft Engine's advantage is in-app purchases (none vs 14) and update cadence (every 3 days vs every 2 months). On price, ads 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. HoppAR sells 14 in-app purchases, starting at $7.99 per year. Aircraft Engine asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

HoppAR holds the better App Store score, 4.8 against 2.1. That said, the two scores are not equally well evidenced: HoppAR has 579 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 25% of Aircraft Engine's written reviews are positive against 85% of HoppAR's.

UpkeepUpdate frequency

Aircraft Engine ships an update every 3 days, HoppAR every 2 months. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
Aircraft Engine versus HoppAR: the parameters behind the verdict, then further details
ParameterAircraft EngineHoppAR
PriceFreeFree
Rating2.1 (18 ratings)4.8 (579 ratings) — better
Positive reviews25.0% of reviews85.4% of reviews — better
Number of ratings18579 — better
Update frequencyEvery 3 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.0
Further details — not scored
Size145 MB372 MB
Age rating4+4+
DeveloperNumixJosef Grunig

Customer experience

Aircraft Engine

All ratings18 ratings
Positive27.8%
Neutral0.0%
Negative72.2%
Written reviews8 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

HoppAR

All ratings579 ratings
Positive94.6%
Neutral2.8%
Negative2.6%
Written reviews41 reviews
Positive85.4%
Neutral2.4%
Negative12.2%

Bugs and requests

Aircraft Engine

Not enough reviews yet to summarise bugs or requests.

HoppAR

Reported bugs

7 issues
  • Black screen on horizontal surface scanning
  • Camera not working on certain devices
  • App won't open or crashes on startup
  • Gray screen display issue
  • iPad AR compatibility problems
Show 2 more
  • App performance issues causing crashes
  • Sound/audio problems requiring fixes

Requested features

15 requests
  • Space Shuttle addition
  • Manual control for Falcon 9 and Dragon
  • Free access to premium rockets
  • Launch towers for all rockets
  • Soyuz rocket
Show 10 more
  • Sea Dragon rocket
  • Starship inclusion
  • First-person/cockpit camera view
  • Non-AR mode for gameplay
  • VR mode support
  • Ability to place objects in front of rockets
  • Increased rocket size to fill room
  • Enhanced smoke/rumble effects
  • Original countdown voices per rocket
  • More rocket variety overall

In-app purchases

None

Aircraft Engine

No in-app purchases

14 purchases

HoppAR

Subscriptions1
  • HoppAR Supporter$7.991 Year
One-time13
  • FALCON HEAVY$0.99
  • STARSHIP Belly Flop$0.99
  • SUPER HEAVY$0.99
Show 10 more
  • DELTA IV HEAVY$0.99
  • PERSEVERANCE$0.99
  • DRONESHIP OCISLY$0.99
  • NEW SHEPARD$0.99
  • ARIANE 5$0.99
  • ARTEMIS I$0.99
  • SOYUZ$0.99
  • ELECTRON$0.99
  • SATURN V$1.99
  • Control Feature$2.99

Questions

Is Aircraft Engine free?
Aircraft Engine is free to download, with no in-app purchases.
Is HoppAR free?
HoppAR is free to download, with in-app purchases available.
Which has better reviews, Aircraft Engine or HoppAR?
HoppAR is rated higher. Aircraft Engine averages 2.1 out of 5 from 18 ratings, while HoppAR averages 4.8 from 579 ratings.
Do Aircraft Engine or HoppAR have ads?
Neither Aircraft Engine nor HoppAR shows ads.
Which is updated more often, Aircraft Engine or HoppAR?
Aircraft Engine ships an update every 3 days, and HoppAR every 2 months. Most recently, Aircraft Engine was updated on October 13, 2026 and HoppAR on October 8, 2026.

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