# Defi Logger

> Vehicle data logger and tracker for iOS devices via Bluetooth adapter. (iPhone/iPad app by Defi.)

- Source: https://appshunter.io/ios/app/defi-logger/id994409901 (this page in markdown: same URL + `.md`)
- Developer: [Defi](https://appshunter.io/developer/887419342)
- Category: Sports, Entertainment
- Price: Free
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 5.1.1 · 3 MB
- Languages: American English, Japanese
- Released: 2015-06-12
- Data updated: 2026-07-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/defi-logger/id994409901/reviews.md

## What is Defi Logger?

本アプリはDefi Smart Adapter WとBluetoothで接続して使用するアプリです。
Defi Smart AdapterはADVANCE Control UnitまたはOBDと接続して使用する製品で、
ADVANCE　Control Unitに取り込んでいる車両情報及びOBDの車両情報をBluetoothでiOS端末に送信するアダプターです。

Defi Webサイトに記載の注意点および使用方法を必ずお読みになってからダウンロードしてください。
　http://www.nippon-seiki.co.jp/defi/products/smart_adp/app/
 
必ずDefiにて動作確認が取れた携帯端末をご使用ください。
動作確認が取れている携帯端末につきましてはDefi Webサイトに記載しております。
　http://www.nippon-seiki.co.jp/defi/products/smart_adp/smart_adp_summary/

Defi ADVANCEコントロールユニットに入力されているセンサーデータが、デジタル数値表示とグラフ表示されます。また携帯端末の位置情報から MAP上に軌跡表示も行います。
走行中のセンサーデータおよび走行軌跡を記録することができ、走行後に解析機能で呼び出すことができます。

アプリが正常に動作しない場合や、ご不明点等がありましたら、下記Defi Webサイトの問い合わせフォームよりご連絡ください。
　http://www.nippon-seiki.co.jp/defi/support/inquiry/

## Key features

- Bluetooth connectivity with Defi Smart Adapter
- Digital and graph display of sensor data
- Map-based route tracking using device location
- Recording of sensor data and driving routes
- Post-drive analysis of recorded data

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/defi-logger/id994409901/reviews.md

### 1/5 — when to update ios 9.3.1 ver

*2016-05-02*

when to update ios 9.3.1 ver

## Frequently asked questions about Defi Logger

### What is Defi Logger used for?

Defi Logger connects to the Defi Smart Adapter W via Bluetooth to transmit vehicle information from your car to your iOS device. It displays sensor data and allows you to record and analyze your driving.

### What devices is Defi Logger compatible with?

Defi Logger is compatible with iPhone, iPad, and iPod devices. It is recommended to use a mobile device that has been confirmed to work with Defi products, as listed on their website.

### How does Defi Logger display vehicle data?

The app displays sensor data from your vehicle in both digital numerical format and as graphs. It also uses your device's location to show your driving route on a map.

### Can I record my drives with Defi Logger?

Yes, Defi Logger allows you to record your driving sessions, including sensor data and your route. This recorded data can be accessed and analyzed later through the app's analysis function.

### Where can I find information on compatible devices for Defi Logger?

A list of mobile devices that have been confirmed to work with Defi products, including Defi Logger, can be found on the official Defi website.

### What is the age rating for Defi Logger?

Defi Logger has an age rating of 4+, making it suitable for a wide range of users.

### How often is Defi Logger updated?

The latest version of Defi Logger is 1.2.0, which was released on May 9, 2016. The app was initially released on June 12, 2015.

### What is the user rating for Defi Logger?

Defi Logger has a rating of 1.0 stars based on 1 rating. Users experiencing issues or having questions are encouraged to contact Defi via their website's inquiry form.

## Version history (last 3 releases)

### 1.2.0 — 2016-05-09

This app has been updated by Apple to display the Apple Watch app icon.

iOS9に対応しました。

### 1.1.0 — 2015-06-30

ローカライズ（英語）対応しました。
Supported in English

### 1.0.0 — 2015-06-11

No release notes.

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## More apps by Defi

- [Defi Meter C](https://appshunter.io/ios/app/defi-meter-c/id887419339)

All apps by Defi: https://appshunter.io/developer/887419342

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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 2026-07-04.*