# PE Wideband — O2 Sensor with Bluetooth

> Engine tuning and diagnostics app displaying air fuel ratio and lambda values. (iPhone/iPad app by Performance Electronics.)

- Source: https://appshunter.io/ios/app/pe-wideband/id1351406709 (this page in markdown: same URL + `.md`)
- Developer: [Performance Electronics](https://appshunter.io/developer/1161515426)
- Category: Utilities
- Price: Free
- Rating: 4.90/5 from 7 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 21 MB
- Languages: American English
- Released: 2019-04-17
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/pe-wideband/id1351406709/reviews.md

## What is PE Wideband?

No more guessing the air fuel ratios coming from your engine. With the PE Wideband App, troubleshooting and tuning your engine has never been easier. 

Simply choose to view air fuel ratio or lambda values. 

Use the other features within the app to customize your view and setup your color gradients for rich and lean conditions. 

Using the integrated adjustable history graph, users can view past data from 10 to 120 seconds. 

Fast connection times.

## Key features

- View Air Fuel Ratio or Lambda
- Customizable Color Gradients
- Adjustable History Graph
- Fast Bluetooth Connection
- Engine Troubleshooting

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/pe-wideband/id1351406709/reviews.md

### 4/5 — Room for improvement

*2021-11-09*

For the most part the app and experience with the Bluetooth gauge is great. 

Would love to see some persistent logging so data can be reviewed after driving. There’s a lot of opportunity on the table to use location (gps velocity) or accelerometer data alongside the AFR for tuning.

App never seems to auto connect on startup, so the sensor must always be reselected.

## Frequently asked questions about PE Wideband

### What is PE Wideband used for?

PE Wideband is used for troubleshooting and tuning engines by displaying real-time air fuel ratio or lambda values. It helps users understand their engine's performance and make adjustments.

### Does PE Wideband have ads?

No, PE Wideband does not contain advertisements. It is a free application that focuses on providing a clean user experience for engine diagnostics.

### What devices does PE Wideband support?

PE Wideband is available for iPhone and iPod devices. It utilizes Bluetooth for connection to engine sensors.

### How long can I view past data with PE Wideband?

The integrated adjustable history graph in PE Wideband allows users to view past data ranging from 10 to 120 seconds. This helps in analyzing engine performance trends over time.

### What is the age rating for PE Wideband?

PE Wideband has an age rating of 4+, making it suitable for a wide range of users. The app's functionality is focused on technical engine data.

### How often is PE Wideband updated?

The latest version of PE Wideband is 1.01.03, which was last updated on November 14, 2020. Users can expect updates to improve functionality and compatibility.

### What are the key features of PE Wideband?

Key features include viewing air fuel ratio or lambda values, customizable color gradients for rich and lean conditions, and an adjustable history graph for past data analysis.

### Is PE Wideband free to download?

Yes, PE Wideband is available for free download. There are no in-app purchases or subscription fees associated with using the app.

## Version history (last 2 releases)

### 1.01.03 — 2020-11-14

Now supporting connections to two PE wideband devices at once. 
Minor bug fixes

### 1.00.11 — 2019-04-17

No release notes.

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## More apps by Performance Electronics

- [Ridetech RidePro X-HP](https://appshunter.io/ios/app/ridetech-ridepro-x-hp/id1161515427)
- [EZ-TCU Trans Controller](https://appshunter.io/ios/app/ez-tcu-trans-controller/id1434677792)
- [FAST Wireless Air Fuel Meter](https://appshunter.io/ios/app/fast-wireless-air-fuel-meter/id1478299555)
- [Ridetech - RidePro E5](https://appshunter.io/ios/app/ridetech-ridepro-e5/id1483867870)
- [Nostrum E85 Ethanol Module App](https://appshunter.io/ios/app/nostrum-e85-ethanol-module-app/id1503385365)

All apps by Performance Electronics: https://appshunter.io/developer/1161515426

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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 2026-06-01.*