Comparison

aRacer X Tune vs Tech2

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

Head to head
About

aRacer X Tune

This app allows for advanced engine tuning and analysis for specific ECU series. It offers features like fuel and ignition timing adjustments, automatic correction, and traction control. Paid upgrades unlock more powerful functions for a customized experience.

Highlights
  • Fuel and ignition timing adjustment
  • Automatic adjustment functions
  • Traction control system (TCS)
  • Power response adjustment
  • Guided idle speed setting
  • Backfire/Idle lope control
  • New analysis tools
Features
Read full description

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

About

Tech2

This utility app offers real-time tuning and configuration for various operational modes. It provides advanced customization options for ignition timing, fuel, and compensation, along with anti-theft protection and analysis features.

Highlights
  • Real-time tuning
  • Anti-theft protection
  • Multiple operation modes
  • Injector tuning
  • Ignition timing tuning
  • BARO compensation
Features
Read full description

Application Functions Configuration: * Easy installation * Real-time tuning Security: * Anti-theft protection Operation Modes: * 3 modes Customization: * Calibration * Injector tuning * Ignition timing tuning * Compensation tuning Analysis: * Analysis Additional Tuning: * TPS enrichment tuning * Fuel start tuning Compensation: * BARO compensation

Screenshots

aRacer X Tune1 screens
Tech24 screens

Verdict

The call

The clearest difference is review sentiment: Tech2 at 50% against aRacer X Tune's 19%. aRacer X Tune's advantage is update cadence (fortnightly vs every 3 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

aRacer X Tune ships an update fortnightly, Tech2 every 3 months. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
aRacer X Tune versus Tech2: the parameters behind the verdict, then further details
ParameteraRacer X TuneTech2
PriceFreeFree
Rating2.8 (18 ratings) — better—
Positive reviews19.0% of reviews50.0% of reviews — better
Number of ratings18 — better—
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size120 MB52 MB
Age rating4+17+
DeveloperARACER SPEEDTEK INC.ECU=SHOP

Customer experience

aRacer X Tune

All ratings18 ratings
Positive44.4%
Neutral5.6%
Negative50.0%
Written reviews84 reviews
Positive19.0%
Neutral15.5%
Negative65.5%

Tech2

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

aRacer X Tune

No in-app purchases

None

Tech2

No in-app purchases

Questions

Is aRacer X Tune free?
aRacer X Tune is free to download, with no in-app purchases.
Is Tech2 free?
Tech2 is free to download, with no in-app purchases.
Do aRacer X Tune or Tech2 have ads?
Neither aRacer X Tune nor Tech2 shows ads.
Which is updated more often, aRacer X Tune or Tech2?
aRacer X Tune ships an update fortnightly, and Tech2 every 3 months. Most recently, aRacer X Tune was updated on October 14, 2026 and Tech2 on October 16, 2026.

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