aRacer X Tune
ARACER SPEEDTEK INC. Utilities iPhoneiPadiPod touch
aRacer X Tune is a free Utilities app for iPhone and iPad by ARACER SPEEDTEK INC. Rated 2.9/5 from 17 ratings. Requires iOS 15.6. Updated June 10, 2026.
- Rating
- 2.9
- 17 ratings
- Price
- Free
- on the App Store
- Size
- 120 MB
- Age 4+
- Updated
- Jun 10
- 2026 · vv3.2.17
Screenshots
About aRacer X Tune
X Tune APP is aRacer puts the experience in participating of global competitions in the past, providing for new generation ECU for engine adjustment. It is suitable for RC Super X and RC Mini X series ECUs with more user-friendly interface, more convenient to use, and is suitable for holiday track days and daily use. It uses WiFi transmission to complete the adjustment and analysis of the relevant data in a more stable and faster way! In addition, you can also pay to turn on the built-in ECU functions according to the needs of the use, so it is the fun of playing in the engine tuning can be extended infinitely!! X Tune has more powerful built-in functions including (depending on different sales countries and regions, related functions need to be paid to turn on): # More powerful adjustment functions: 1. 20x17 (RPM x TPS%) fuel adjustment 2. 20x9 (RPM x TPS%) ignition timing adjustment (paid to upgrade can enable switching of 3 ignition timing MAP) 3. 20x9 (RPM x TPS%) target air-fuel ratio setting (paid to upgrade can enable switching of 3 target air-fuel ratio MAP) # More powerful AT automatic adjustment function and more accurate & fast actual A/F data feedback through AF2 / AF1: 1. Correct the fuel value% & A/F value in time and record it in the 20x17 fuel MAP 2. The corrected result can be used as a base fuel MAP # New features: 1. TCS tracking functions: # The stock is not equipped with TCS, and it can be easily work in rainy and slippery conditions after starting # The stock is equipped with TCS, can provide 3 levels adjustable 2. 3 levels of fuel correction in stock narrowband O2 sensor Adjustable injection phase 3. Response Button for power response adjustment. After the upgrade, you can switch 3 target air-fuel & ignition timing MAPs in time 4. Guided idle speed setting 5. Guided quick shift triggered pressure setting 6. New style Backfire / Idle lope control 7. New analysis tools # Notes: 1. X Tune is only suitable for safe and closed road track, and don’t allow to be used in public road!! 2. After paying to turn on the ECU functions, no refund can be made, because the function has been turned-on in the ECU! Before paying, you can use the trial function to confirm the applicability! 3. The adjustment function may damage the engine, please find a qualified professional technician to adjust it and it is not suitable for general users! Any adjustment causes engine damage and dangerous accidents, the company cannot provide any compensation! About the details, please refer to: https://www.aracer-speedtek.com/product_d.php?lang=tw&tb=1&id=1770
Ratings & reviews
2.9
17 ratings
What’s new
Version v3.2.17 · Updated June 10, 2026
v3.2.17 Support XMAX 300 (2025) Auto Wind Shield function
App privacy
The developer, ARACER SPEEDTEK INC., reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to aRacer X Tune
Looking for apps like aRacer X Tune? Here are 6 similar apps on the App Store. The highest rated is UMA M9 (5.0/5), and all 6 are free to download.
-
UMA M9
5.0
-
Fullstand Next
4.1
-
iQS easy WiFi (iQSE-W)
5.0
-
QuickShifter easy (iQSE)
5.0
-
SHv4 Calculator
5.0
-
PowerVision 4
4.9
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| aRacer X Tune | 2.9 / 5 (17 ratings) | Free | June 10, 2026 | |
| UMA M9 | 5.0 / 5 (1) | Free | Jan 14, 2025 | Compare |
| Fullstand Next | 4.1 / 5 (19) | Free | Sep 3, 2025 | Compare |
| iQS easy WiFi (iQSE-W) | 5.0 / 5 (2) | Free | Jul 6, 2026 | Compare |
| QuickShifter easy (iQSE) | 5.0 / 5 (2) | Free | May 6, 2025 | Compare |
| SHv4 Calculator | 5.0 / 5 (4) | Free | Jan 21, 2025 | Compare |
| PowerVision 4 | 4.9 / 5 (312) | Free | Oct 12, 2026 | Compare |
Compare aRacer X Tune with the top alternatives: ratings, updates, ASO score and keyword gaps →