Comparison

POWER TUNER App vs Lapper

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

Head to head
About

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.

Highlights
  • Engine and suspension tuning
  • Real-time machine data monitoring
  • Lap time tracking
  • Traction and launch control
  • ECU lock for theft deterrence
  • Setup guide
Features
Read full description

■ 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.

About

Lapper

Read full description

Lapper turns your iPhone or iPad into a smart lap timer and real-time audio assistant for all lap-based sports. Whether you're driving, cycling, skating, or running laps, Lapper gives you detailed insights without the need for extra hardware. No complicated setup. No external sensors. Just press start and move. Lapper takes care of the rest—lap detection, timing, audio messages, and data sync happen automatically. - Just drop a start/finish point on the map and begin your session. Lapper automatically detects every lap using GPS with high precision. Under optimal conditions, lap timing is near-perfect. Even with weaker signals, accuracy stays within ±1s. - Get voice feedback in your ears, lap after lap. Choose what type of message to receive—lap time, performance progression, or best lap—and adjust message length for better focus. Stay in your zone while staying informed. - Coach Mode lets you connect live with your coach, spotter, or teammate. Talk in real time and share full session data instantly, over Bluetooth or the internet. It’s like having a pit wall in your pocket. - After your session, review detailed performance data. Compare lap times, progression, and performance deltas. Replay your route from above with satellite view and understand exactly where you gained or lost time. - Lapper also detects performance trends. Whether you're improving, plateauing, or regressing, you’ll see the trend per lap, per session, and across tracks. These trends help you adapt your training and recognize breakthroughs. - Save your tracks and sessions for any sport. Lapper remembers your favorite layouts and lets you build your personal track library, whether you're on a racing circuit, a velodrome, or a loop in the park. Built for iOS and iPadOS, Lapper takes advantage of all Apple technologies and sensors, with no extra dongles, beacons, or wearables needed. Just mount your phone and go. Train smarter. Get faster. One lap at a time. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://lapperapp.com/legal/privacy

Screenshots

POWER TUNER App4 screens
Lapper4 screens

Verdict

The call

The clearest difference is in-app purchases: POWER TUNER App at none against Lapper's 2. POWER TUNER App also leads on update cadence (every 3 months vs every 7 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lapper sells 2 in-app purchases, starting at $6.99 per month. POWER TUNER App asks for nothing beyond the download.

UpkeepUpdate frequency

POWER TUNER App ships an update every 3 months, Lapper every 7 months. Both last shipped on September 24, 2026.

Scorecard2 real differences · 8 level
POWER TUNER App versus Lapper: the parameters behind the verdict, then further details
ParameterPOWER TUNER AppLapper
PriceFreeFree
Rating3.1 (80 ratings) — better—
Positive reviews26.6% of reviews—
Number of ratings80 — better—
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better16.6
Further details — not scored
Size14 MB43 MB
Age rating4+4+
DeveloperYamaha Motor Co., Ltd.Longwave Studio

Bugs and 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
Show 32 more
  • 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
Show 9 more
  • 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

Lapper

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

POWER TUNER App

No in-app purchases

2 purchases

Lapper

Subscriptions2
  • Coach Mode Monthly7 Days trial$6.991 Month
  • Coach Mode Yearly7 Days trial$44.991 Year

Questions

Is POWER TUNER App free?
POWER TUNER App is free to download, with no in-app purchases.
Is Lapper free?
Lapper is free to download, with in-app purchases available.
Do POWER TUNER App or Lapper have ads?
Neither POWER TUNER App nor Lapper shows ads.
Which is updated more often, POWER TUNER App or Lapper?
POWER TUNER App ships an update every 3 months, and Lapper every 7 months. Most recently, POWER TUNER App was updated on September 24, 2026 and Lapper on September 24, 2026.

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