# KTuner FlexFuel — Ethanol content display

> Real-time ethanol content and temperature display for KTuner FlexFuel units. (iPhone/iPad app by Peter Linszter.)

- Source: https://appshunter.io/ios/app/ktuner-flexfuel/id6447161311 (this page in markdown: same URL + `.md`)
- Developer: [Peter Linszter](https://appshunter.io/developer/530077583)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 11.0 · 41 MB
- Languages: American English
- Released: 2023-04-05
- Data updated: 2026-08-19
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ktuner-flexfuel/id6447161311/reviews.md

## What is KTuner FlexFuel?

The app connects to the KTuner FlexFuel units using Bluetooth BLE and displays realtime ethanol content and temperature.

## Key features

- Bluetooth BLE connectivity
- Real-time ethanol content display
- Real-time temperature display
- Supports KTuner FlexFuel units


## Frequently asked questions about KTuner FlexFuel

### What devices does KTuner FlexFuel support?

KTuner FlexFuel is available for iPhone and iPod devices. It requires a KTuner FlexFuel unit to function.

### How does KTuner FlexFuel connect to the hardware?

KTuner FlexFuel utilizes Bluetooth Low Energy (BLE) to establish a connection with the KTuner FlexFuel units.

### What information does KTuner FlexFuel display?

The app displays real-time ethanol content and the temperature of the fuel mixture directly from the connected KTuner FlexFuel unit.

### Is KTuner FlexFuel free to use?

Yes, KTuner FlexFuel is available for free download and use. There are no in-app purchases or advertisements.

### How often is KTuner FlexFuel updated?

The app was last updated on April 6, 2023, with version 1.01. Future updates will depend on developer releases.

### What is the age rating for KTuner FlexFuel?

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

### What is the user sentiment for KTuner FlexFuel?

Based on available data, KTuner FlexFuel has a perfect 5.0-star rating from one review, indicating positive user sentiment.

## Version history (last 2 releases)

### 1.01 — 2023-04-06

Small design changes

### 1.0 — 2023-04-06

No release notes.

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## More apps by Peter Linszter

- [Compression Calculator](https://appshunter.io/ios/app/compression-calculator/id1421927149)
- [HONDAtabase](https://appshunter.io/ios/app/hondatabase/id1421957481)
- [TunerView](https://appshunter.io/ios/app/tunerview/id1593158185)

All apps by Peter Linszter: https://appshunter.io/developer/530077583

## Related topics

[ktuner flexfuel](https://appshunter.io/ios/topics/ktuner-flexfuel) · [ktuner](https://appshunter.io/ios/topics/ktuner)

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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 2026-08-19.*