iTSX vs POWER TUNER App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iTSX
Tune and monitor your vehicle's performance using your iPhone or iPad. This app requires a specific wireless OBD-II interface to adjust engine parameters, view real-time data, and run performance tests. It also allows for reading and clearing diagnostic trouble codes.
- Vehicle programming for performance gains
- Pre-loaded dyno-proven tunes
- Adjustable speed limiter
- Virtual gauges and data monitoring
- Record and review data logs
- Performance tests (0-60, 1/4 mile)
- Read and clear diagnostic trouble codes
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TUNE YOUR VEHICLE WITH YOUR iPHONE / iPAD! NOTE: This app requires the iTSX Wireless OBD-II Interface. Visit https://sctflash.com/Products/unfiltered-product/sct/SCTITSX/sct-itsx for more information. The iTSX App lets you control the vehicle-tuning and monitoring capabilities of the iTSX Wireless OBD-II Interface... the first & only “Made for iPod – iPhone – iPad” vehicle tuner & OBD-II monitoring product on the market. The iTSX Wireless OBD-II Interface plugs into your vehicle’s OBD-II diagnostic connector, and communicates with your Apple device via a secure Bluetooth wireless connection. When used with the iTSX Wireless OBD-II Interface, the iTSX App provides the following features: VEHICLE PROGRAMMING • Increase your vehicle’s Performance in Minutes • Works with 1996 - 2012 Ford Gas & Diesel vehicles • Works with popular GM vehicles (see What's New) • Pre-Loaded Dyno Proven Tunes for the Most Popular vehicles • Re-Calibrates the Vehicle using Bluetooth Wireless Technology • Ability to set your vehicle’s Speed Limiter for young drivers VIRTUAL GAUGES / DATA MONITORING / DATA LOGGING • On-Screen Virtual Gauges with Adjustable Warning / Alert lights • Monitor Vehicle Engine Data / Parameters via Virtual Gauges • Record & Review Recorded Data Logs • Huge Virtual Gauges on iPad VEHICLE PERFORMANCE TESTS • 0-60MPH Test: Virtual Speedometer & Graph with Estimated Horsepower • ET / MPH Test: 1/8th mile & 1/4 mile ET / MPH with Estimated Horsepower • Top Speed Test • Braking Test VEHICLE DIAGNOSTICS • Reads & Clears Vehicle Diagnostic Trouble Codes ( Check Engine Light ) • Diagnose your vehicle’s Diagnostic Trouble Codes using your mobile device
POWER TUNER App
Optimize your Yamaha motorcycle's performance for racing. Adjust engine and suspension settings, monitor real-time machine data, and track lap times. Features include mapping, traction control, launch control, and an ECU lock for theft deterrence.
- Engine and suspension tuning
- Real-time machine data monitoring
- Lap time tracking
- Traction and launch control
- ECU lock for theft deterrence
- Setup guide
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■ Introduction To win races, it is absolutely essential to set up your machine to best suit both you and the track conditions. To facilitate this, Yamaha Motors has developed the PowerTuner app for the Yamaha YZ series and WR series (*1). You can now quickly and easily adjust engine and suspension settings using the app to best suit every rider and any conditions. In PowerTuner, all features are available at no additional cost! Want to set up the machine to run faster? ⇒ Intuitive and easy settings. More detailed settings are also available. Make settings as per your choice by referring to the setup guide! Want to check the recorded usage information such as speed, throttle opening, engine speed, fuel consumption? ⇒ You can now use your smartphone as a machine information monitor! Want to check how much your lap time improves after customizing the machine settings in the app? ⇒ Measure your times lap-by-lap with the connected button on the machine! (*1) Depending on the machine, some functions may not be available. ■ Description ・Mapping There are three setting types: (1) Fuel Injection (FI) and Ignition (IG) Intuitive and easy adjustment by selecting "Smooth ⇔ Aggressive". If you want more detailed settings, you can adjust each with 16 points (4 x 4) according to the engine speed / throttle opening. (2) Traction Control Adjust the level of intervention within 3–4 levels. (3) Launch Control Set the "Rev limit" for launches. ・Monitor The race log, failure diagnostics, machine status, vehicle speed, throttle opening, engine speed, fuel consumption, water temperature, intake air temperature, and battery voltage are displayed on the smartphone. ・Lap timer (Time) Measure lap times with “Multi-function Button” on the left handlebar. After, check the data recorded by the machine's CCU on your smartphone. Since lap-by-lap measurement is available, you can numerically check the settings effect and lap time discrepancies in actual races. ・Set Up A FAQ-style setup guide is available for engine and suspension settings. Since it is easy to check the setting instructions on your smartphone, anyone can easily setup the engine and suspension. ・ECU Lock ECU Lock is a theft deterrent feature that, when engaged, prevents the engine from being started. ■ Supported environment: ・This app requires a smartphone. ・It is not guaranteed that the app will work with all devices. ■ Precautions: ・Use this app safely in compliance with all traffic rules and regulations. ・Only use it when the machine is parked in a safe place. ・It is not guaranteed that this app will work with all machines. CCU installation location and installation method may affect accuracy, sensitivity, and operation of the CCU. ・Some functions of this app require an internet connection through mobile data communication or wireless LAN. ・It is not guaranteed that the figures displayed on this app are accurate. ■ Inquiries ・This app can be used with some Yamaha machines. For inquiries, contact Yamaha dealer.
Screenshots
Verdict
The clearest difference is rating: POWER TUNER App at 3.2 against iTSX's 2.3. iTSX's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 16.0). On price, review sentiment, ratings volume and update cadence 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
POWER TUNER App holds the better App Store score, 3.2 against 2.3. Both are backed by a comparable volume of ratings — 45 and 82 respectively. Written reviews point the same way: 24% of iTSX's written reviews are positive against 27% of POWER TUNER App's.
iTSX ships an update every 2 months, POWER TUNER App every 3 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | iTSX | POWER TUNER App |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (45 ratings) | 3.2 (82 ratings) — better |
| Positive reviews | 24.5% of reviews | 26.6% of reviews — better |
| Number of ratings | 45 | 82 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 35 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | SCT Performance | Yamaha Motor Co., Ltd. |
Customer experience
iTSX
POWER TUNER App
Bugs and requests
iTSX
Not enough reviews yet to summarise bugs or requests.
POWER TUNER App
Reported bugs
37 issues- FI/IG tuning menu freezes
- ECU lock greyed out and shows error message
- App freezes when accessing maps sub menu
- Mapping edit screen is unresponsive
- Cannot connect to WiFi/bike after 120 hours
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- App crashes when downloading maps from Yamaha
- Hour meter resets when bike is turned off
- App not working with iOS 14
- Cannot inject maps downloaded from Yamaha site on iOS
- Cannot connect to bike on iPhone with iOS 14
- App shows no data and won't connect to bike with iOS 14
- Bike will not connect with app, shows no internet service
- Cannot change maps, see hours on iOS 14.2
- App quits working after new iOS updates
- Cannot sync with 2020 YZ450F since iOS 14 update
- Cannot change maps since new iOS update
- App won't connect due to iOS 14
- Cannot connect to 2021 250f
- Does not work with iOS 14
- Cannot connect to 2020 YZ450F since phone update
- App shows no data and won't connect to bike with iOS 14
- App doesn't work with iOS 14
- No funciona con IOS14 en iPhone XS
- App won't connect due to iOS 14
- Unable to connect to 2020 YZ450F since phone update
- App shows no data and won't connect to bike with iOS 14
- App doesn't work with iOS 14
- App works great but does NOT help start 2020 250FX
- Issue with sending/receiving maps
- Cannot import map to vehicle
- Maps download to phone but won't transfer to app
- Cannot send or receive maps on new iPhone
- App does not register bike, requires re-selection on opening
- Phone crashes when importing maps from Yamaha website
- App will not save bike on iPhone
- Cannot get bike to bring up WiFi on phone
- Display is sometimes jerky
Requested features
14 requests- Add Russian language support
- Add Portuguese language support
- Add Spanish language support
- Add French language support
- Add Chinese language support
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- Add ability to lock bike
- Change KMH to MPH and Celsius to Fahrenheit
- Record GPS data with throttle/RPM overlay
- Start bike via app
- Digital RPM readout option
- Simple view with sliders for tuning
- Add more service log entries
- Make maps available in a manual within the app
- Improve connection between app and smartphone
In-app purchases
iTSX
No in-app purchases
POWER TUNER App
No in-app purchases
Questions
Is iTSX free?
Is POWER TUNER App free?
Which has better reviews, iTSX or POWER TUNER App?
Do iTSX or POWER TUNER App have ads?
Which is updated more often, iTSX or POWER TUNER App?
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