XLR8 vs UB+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
XLR8
Transform your car's audio experience by making it sound like an exotic supercar. This app uses your device's accelerometers to simulate realistic engine sounds based on your driving actions. Choose from a variety of authentic engine sounds and customize their performance for an immersive driving simulation.
- Realistic engine sound simulation
- Accelerometer-based input
- Five authentic engine sound options
- Engine performance tuning
- Automatic and manual driving modes
- Bluetooth and cabled audio support
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Wish you owned an exotic supercar? Now you can with XLR8! XLR8 (pronounced accelerate) is an exciting new app from 2XL Games that makes your car sound like an exotic supercar as you drive! Connect your iPhone, iPod or iPad to your car stereo and you are off and running. Once secured inside your vehicle, XLR8 uses the accelerometers of your device to realistically respond to acceleration, braking and cornering forces. Select from one of five exciting engines: - Classic V8 muscle car - NASCAR engine - Ford GT40 - Ferrari sports car - Lamborghini Supercar Dazzle your friends when you roll into the parking lot with the sound of a lumbering muscle car. Each engine realistically delivers the thrill of driving a different type of supercar. Uses Hollywood quality recordings of the real engines to sound totally authentic. Tune the performance of your engines by adjusting the shift point and gear ratios. Sound like you are burning out your tires and drifting without driving recklessly. Supports both cabled and wireless Bluetooth audio connections to your car stereo. Some vehicle Bluetooth connections can experience a slight delay. Automatic Mode measures the acceleration of your car and Manual Mode lets you control the engine by hand. XLR8 works well with any device, but works best with a GPS. Drive the car of your dreams – XLR8
UB+
Stream high-resolution audio from your smartphone to compatible devices. Control playback, adjust sound settings, and even pair two speakers for wireless stereo sound. Enjoy a personalized audio experience with advanced customization options.
- High-resolution audio streaming
- Playback control (play, pause, volume)
- Selectable sound sources (TV, computer, phone)
- Advanced sound settings (EQ, 3D, stereo)
- Wireless stereo pairing for two speakers
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Key Features Includes : a) To play music on your smartphone and transmit thru SBC, AAC, APTX and other high-resolution audio sources. b) Control play pause, volume, track c) Select and play the sound source of TV, computer, mobile phone d) Adjust various sound settings, equal loudness, 3D, stereo left and right channels, etc. e) You can also Pair 2 speakers to form a wireless stereo thru this APP. *Compatible devices only *Some functions only correspond to specific mobile phone models
Screenshots
Verdict
The clearest difference is price: UB+ at Free against XLR8's $4.99. UB+ also leads on in-app purchases (none vs 5) and update cadence (every 2 months vs every 7 months). XLR8's advantage is rating (2.0 vs 1.0) and ratings volume (168 vs 1). On ads, device support and iOS requirement 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
UB+ is free to download; XLR8 costs $4.99 up front. XLR8 sells 5 one-off in-app purchases. UB+ asks for nothing beyond the download.
XLR8 holds the better App Store score, 2.0 against 1.0. That said, the two scores are not equally well evidenced: XLR8 has 168 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 16% of XLR8's written reviews are positive against 0% of UB+'s.
XLR8 ships an update every 7 months, UB+ every 2 months. The most recent releases landed on September 30, 2026 and June 25, 2026 respectively.
| Parameter | XLR8 | UB+ |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 2.0 (168 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 15.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 168 — better | 1 |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #149 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 78 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 2XL Games, Inc. | TGI TECHNOLOGY PTE LTD |
Customer experience
XLR8
UB+
Bugs and requests
XLR8
Reported bugs
4 issues- Doesn't work on iOS 11/12
- Inconsistent performance
- Fails to download purchased content
- Doesn't detect vehicle motion
Requested features
4 requests- Background mode
- Accelerometer integration
- More car sounds
- Restore purchases option
UB+
Not enough reviews yet to summarise bugs or requests.
In-app purchases
XLR8
- Stock Car$0.99
- American Sports Car$1.99
- Italian Supercar$2.99
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- Italian Sports Car$2.99
- Unlock All Engines$4.99
UB+
No in-app purchases









