Comparison

Ultra Reaction vs RevHeadz Engine Sounds

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

Head to head
About

Ultra Reaction

Test and improve your reflex speed with this engaging game. Compete across multiple modes, track your progress, and challenge friends to become the ultimate speed champion. It's a fun way to enhance reaction times for various fast-paced activities.

Highlights
  • 3 game modes (responsive, dynamic, endless)
  • 7 difficulty levels
  • Game Center integration
  • Leaderboard and achievements
  • Reaction time training
  • Improve speed and agility
  • Enhance concentration and endurance
Features
Read full description

Let's see who's faster with this reflex testing game. Improve your reaction speed and you'll even get better in other fast-paced games. √ 3 game modes (Responsive, Dynamic, Endless) and 9 levels √ 5 visual themes and 6 alternate app icons with the Supporter Pack √ a proven way to train and improve your reaction times Game modes: √ RESPONSIVE How quick are you? Test your reaction speed and monitor your improvement. Tap the squares as quickly as possible as soon as they appear. Perfect for improving your response time. √ DYNAMIC Try to reach your top speed! Hit the targets in the right order and dodge the red ones. Hit as many targets as possible in 30 seconds. Improve your speed and agility. √ ENDLESS Only the strong survive. Test your ability and concentration with this endurance mode. Hit the blue targets before they disappear in waves of increasing difficulty. A great way to improve your speed, agility, concentration and endurance.

About

RevHeadz Engine Sounds

Experience realistic car and motorcycle engine sounds with interactive controls for gears, brakes, and acceleration. Connect to sound systems for an immersive audio experience. Supports OBD2 connectivity for real-time driving simulation.

Highlights
  • Realistic engine sound simulation
  • Interactive gear, brake, and accelerator controls
  • OBD2 connectivity for real-time driving
  • Vast library of car and bike engines
  • Connect to external sound systems
  • Detailed mechanical parameter simulation
Features
Read full description

State-of-the-art engine sound application, accurately simulating a huge range of car and bike engines from off-road to grand prix and everything in-between. RevHeadz puts you in control of gear-shifts, brakes, and accelerator speed, incorporating sonic models of real engine sounds with real-world mechanical physical parameters including speedometer, tachometer, accelerator, brake, drive ratios, drive lashing, engine load, gear-shifts and backfire logic. To experience the real scope of RevHeadz, simply connect your device to a home or car sound system and take control of the best sounding engines ever created. OBD2 FEATURE You can experience RevHeadz Engine Sounds while driving your car using OBD-II (On-Board Diagnostics / OBD2) communication. *Requires an OBD-II compliant vehicle that reports RPM or Speed and an ELM / OBD-II Wifi adapter or Bluetooth adapter certified to work with iOS. Free Pack Includes: - 6.0L V12 Italian Supercar - 1000cc V4 Japanese Sports Bike - 4.7L V8 American Classic Muscle Car - 1.3L RX Rotary - 100cc Chainsaw - 1800cc V-Twin Cruiser - NIS 350Z V8 Super GT - AM V12 GT3 - FER 458 GT3 Modern American Muscle Pack Includes: - Hellcat - Mustang GT500 - Camaro ZL1 Classic V8 Sports Car Pack Includes: - Cobra - GT40 - Pantera - Stingray Classic American Muscle Pack Includes: - Camaro - Charger - Mustang - Viper GT Pack 1 Includes: - AUD R8 LMS GT3 - CHEV CAM GT3 - POR 997 GT3 R - BENT CONT GT3 GT Pack 2 Includes: - BMW Z4 GT3 - MERC AMG GT3 - FRD GT LM GT3 - FER FXX K GT Pack 3 Includes: - MCLN 12C GT3 - NIS GT-R GT3 - CHEV COR C7.R - FER 488 GT3 Import Pack Includes: - 4.8L V10 LF-Nurb Onboard Sound - 4.8L V10 LF-Nurb Exhaust Sound - 2.0L 4-Boxer 86 Tuned - 3.5L V6 Trophy Historic Grand Prix Pack Includes: - 3.0L Flat-12 1978 Italian Classic - 3.0 V8 1976 World Champion - 1.5L V6-T 1988 World Champion Modern Grand Prix Pack Includes: - 1.6L V6 Turbo Hybrid - 2.4L V8 2013 Onboard Sound - 2.4L V8 2013 Exhaust Sound - 3.0L V10 2004 World Champion Off Road Pack Includes: - 2.0L Flat-4T Rallycar - 450cc 4-Stroke Quad Bike - 250cc 2-Stroke Dirt Bike Race Car Pack Includes: - 5.8L V8 American Stockcar - 5.5L V10 TDI German LMP - 3.6L Flat-6 German GT3 Street Tuner Pack Includes: - 3.7L V6 Z-Car - 1.6L Inline-4 86 Classic - 2.0L Triple Rotor Drift Street Bike Pack Includes: - 1200cc V-Twin American Chopper - 1200cc V-Twin Italian Sports Bike - 1050cc Triple British Sports Bike Supercar Pack Includes: - 5.2L V10 Italian Supercar - 4.5L V8 Italian Supercar - 3.2L V6 Japanese Supercar V8 Thunder Pack Includes: - 6.2L V8 Caddy Racecar - 5.0L V8 Australian Racecar - 11.5L V8 Monster Truck

Screenshots

Ultra Reaction4 screens
RevHeadz Engine Sounds4 screens

Verdict

The call

The clearest difference is ads: Ultra Reaction at none against RevHeadz Engine Sounds's shown. RevHeadz Engine Sounds's advantage is ratings volume (1.4K vs 69) and review sentiment (69% vs 58%). On price, rating, update cadence 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. Ultra Reaction sells 2 one-off in-app purchases and RevHeadz Engine Sounds sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Ultra Reaction holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: RevHeadz Engine Sounds has 1.4K ratings behind it against 69, so its average is the more settled of the two. Written reviews complicate that: 58% of Ultra Reaction's written reviews are positive against 69% of RevHeadz Engine Sounds's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ultra Reaction ships an update every 5 months, RevHeadz Engine Sounds every 3 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Ultra Reaction versus RevHeadz Engine Sounds: the parameters behind the verdict, then further details
ParameterUltra ReactionRevHeadz Engine Sounds
PriceFreeFree
Rating4.5 (69 ratings) — better4.3 (1.4K ratings)
Positive reviews58.2% of reviews68.7% of reviews — better
Number of ratings691.4K — better
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size6 MB201 MB
Age rating4+4+
DeveloperFabio BassanD.S LONG & SOUNDWAVE CONCEPTS PTY. LTD. & C.G WISE

Customer experience

Ultra Reaction

All ratings68 ratings
Positive85.3%
Neutral8.8%
Negative5.9%
Written reviews79 reviews
Positive58.2%
Neutral8.9%
Negative32.9%

RevHeadz Engine Sounds

All ratings1,379 ratings
Positive82.7%
Neutral4.5%
Negative12.8%
Written reviews750 reviews
Positive68.7%
Neutral9.9%
Negative21.5%

Bugs and requests

Ultra Reaction

Not enough reviews yet to summarise bugs or requests.

RevHeadz Engine Sounds

Reported bugs

4 issues
  • Inconsistent RPM/speed detection
  • Delayed or unresponsive engine sounds
  • Compatibility issues on certain devices
  • Startup/shutdown sound not working in OBD2 mode

Requested features

9 requests
  • Add more free car sounds
  • Include diesel engine sounds
  • Implement turbo/supercharger sounds
  • Add more JDM and classic car sounds
  • Introduce a clutch/manual gearbox feature
Show 4 more
  • Implement a customization/tuning system
  • Add support for newer/high-performance cars
  • Integrate GPS/speed tracking
  • Implement a multiplayer/competitive mode

In-app purchases

2 purchases

Ultra Reaction

One-time2
  • Remove ads$0.99
  • Supporter Pack$0.99
10 purchases

RevHeadz Engine Sounds

One-time10
  • Historic Grand Prix Pack$0.99
  • Race Car Pack$0.99
  • Super Car Pack$0.99
Show 7 more
  • Street Tuner Pack$0.99
  • Street Bike Pack$0.99
  • Off Road Pack$0.99
  • V8 Thunder Pack$0.99
  • Modern Grand Prix Pack$0.99
  • Import Pack$0.99
  • Classic American Muscle Pack$0.99

Questions

Is Ultra Reaction free?
Ultra Reaction is free to download, with in-app purchases available.
Is RevHeadz Engine Sounds free?
RevHeadz Engine Sounds is free to download, with in-app purchases available.
Which has better reviews, Ultra Reaction or RevHeadz Engine Sounds?
Ultra Reaction is rated higher. Ultra Reaction averages 4.5 out of 5 from 69 ratings, while RevHeadz Engine Sounds averages 4.3 from 1.4K ratings.
Do Ultra Reaction or RevHeadz Engine Sounds have ads?
RevHeadz Engine Sounds shows ads; Ultra Reaction does not.
Which is updated more often, Ultra Reaction or RevHeadz Engine Sounds?
Ultra Reaction ships an update every 5 months, and RevHeadz Engine Sounds every 3 months. Most recently, Ultra Reaction was updated on October 23, 2026 and RevHeadz Engine Sounds on October 29, 2026.

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