# Boostline — Data logger for BMW engines

> BMW engine data logger and performance analyzer for iOS devices. (iPhone/iPad app by Kyle Aschenberg.)

- Source: https://appshunter.io/ios/app/boostline/id6821409701 (this page in markdown: same URL + `.md`)
- Developer: [Kyle Aschenberg](https://appshunter.io/developer/6821409703)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-11-05
- Data updated: 2026-11-08
- Monetization: free

## What is Boostline?

Boostline turns your iPhone or iPad into a data logger for your BMW. Plug an MHD or bootmod3 WiFi adapter into the OBD port, join its WiFi network and see what your engine is doing, live.

LIVE
• A dashboard of value tiles: engine speed, boost, lambda, rail pressure, timing, temperatures and more
• Actual and target side by side, with a bar that shows how far apart they are
• Live graphs with touch controls: drag to read values, pinch to zoom

LOGS
• Capture a log with one tap
• Logs are CSV files in the Files app, ready to share with your tuner

ANALYZE
• Graphs with the full-throttle pulls found for you
• Compare two logs
• Heatmaps of boost, lambda, rail pressure and timing against engine speed and load

ROAD DYNO
• Estimated engine and wheel power and torque from a pull
• Uses your car's weight, drivetrain loss and the weather
• Save runs and overlay them

DRAG TIMING
• 0–100 km/h, 0–60 mph, 100–200 km/h, 60–130 mph, 1/8 and 1/4 mile
• Splits and gear changes
• Calibrate the car's speed reading against GPS

BMW DME DATA
Import BMW's engine measurement tables once (a free download from the open-source bmw-unified-db project) for boost target, wastegate position, per-cylinder timing and knock, VANOS and hundreds more channels on B38, B48, B58, S58, S55, N55, N20, N54, N63 and S63 engines. Without it, Boostline reads the standard OBD-II channels.

WHAT YOU NEED
• A BMW with an MHD WiFi adapter or a bootmod3 WiFi adapter
• An internet connection once, to download the BMW data (about 130 MB)

READ-ONLY AND PRIVATE
Boostline only reads data. It doesn't flash, code or change anything in the car. No accounts, no ads, no tracking: your logs stay on your device.

Dyno and drag runs belong on a closed course or a dyno, never on public roads. Road-dyno figures are estimates, not dynamometer measurements.

Boostline is not affiliated with or endorsed by BMW AG, MHD or bootmod3.

## Key features

- Live engine data dashboard
- Real-time and target value comparison
- Live graph analysis with touch controls
- One-tap log capture to CSV
- Log comparison and heatmaps
- Estimated road dyno power and torque
- Drag timing metrics (0-100 km/h, 1/4 mile)

## Is Boostline safe?

Not enough ratings yet to assess Boostline.

## Is Boostline legit?

Boostline has limited verification signals. The AppsHunter Legitimacy Score for Boostline is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Boostline

### What is Boostline?

Boostline is a free utility app that turns your iPhone or iPad into a data logger for BMW engines. It displays live engine metrics, allows you to capture and analyze logs, and provides performance estimations.

### Does Boostline have ads?

No, Boostline is ad-free. The app emphasizes privacy and states that your logs stay on your device with no tracking.

### What BMW engines does Boostline support?

Boostline supports a wide range of BMW engines including B38, B48, B58, S58, S55, N55, N20, N54, and N63 engines, provided you import the necessary engine measurement tables.

### What hardware do I need for Boostline?

You will need a BMW with either an MHD WiFi adapter or a bootmod3 WiFi adapter plugged into the OBD port to use Boostline.

### How often is Boostline updated?

The latest version, 0.6.0, was released on November 5, 2026, indicating recent development activity. Updates typically occur to improve features and compatibility.

### Can Boostline flash or change my car's settings?

No, Boostline is a read-only application. It does not flash, code, or change any settings in your car; it only reads data.

### What devices is Boostline compatible with?

Boostline is available for iPhone and iPad devices. It requires iOS and is rated for ages 4 and up.

### How accurate are the road dyno estimates in Boostline?

The road dyno figures provided by Boostline are estimates and not actual dynamometer measurements. They are calculated using your car's weight, drivetrain loss, and weather conditions.

## Version history (last 1 release)

### 0.6.0 — 2026-11-05

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-08.*