# POWER TUNER App vs Lapper

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.

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.

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

## The numbers

| Metric | POWER TUNER App | Lapper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (80 ratings)](https://appshunter.io/ios/app/power-tuner-app/id1235945328/reviews)** | — |
| Number of ratings | **80** | — |
| Positive reviews | 26.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | — |
| Size | 14 MB | 43 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yamaha Motor Co., Ltd.](https://appshunter.io/developer/337268490) | [Longwave Studio](https://appshunter.io/developer/1507791927) |

## What reviewers say

### POWER TUNER App

[App page](https://appshunter.io/ios/app/power-tuner-app/id1235945328)

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:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use for tuning
- 💡 Comprehensive maintenance log
- 🚀 FI/IG tuning is amazing
- 👍 App is great when it works
- 👍 Adjustability is amazing

**What reviewers complain about**

- 🐛 Freezing/crashing in menus
- 🐛 Connectivity issues
- 🐛 App not working with iOS 14
- 🐛 ECU lock greyed out
- 🐛 No power tuning for WR450F

**Reported bugs**

- 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

**Requested features**

- Add Russian language support
- Add Portuguese language support
- Add Spanish language support
- Add French language support
- Add Chinese language support


### Lapper

[App page](https://appshunter.io/ios/app/lapper-lap-timer-plus-coach/id6463862718)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coach Mode Monthly | $6.99 | per month |
| Coach Mode Yearly | $44.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*