# FAST Wireless Air Fuel Meter — FAST Air Fuel Meter for iOS

> iOS air/fuel ratio monitoring and data logging tool for automotive enthusiasts. (iPhone/iPad app by Performance Electronics.)

- Source: https://appshunter.io/ios/app/fast-wireless-air-fuel-meter/id1478299555 (this page in markdown: same URL + `.md`)
- Developer: [Performance Electronics](https://appshunter.io/developer/1161515426)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 9 MB
- Languages: English
- Released: 2020-02-11
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/fast-wireless-air-fuel-meter/id1478299555/reviews.md

## What is FAST Wireless Air Fuel Meter?

The revolutionary FAST Wireless Air/Fuel Meter Kits allow enthusiasts to monitor air/fuel ratios and data log directly from an iOS device.

Features & Benefits:    
• Monitor air/fuel ratio directly from your iOS Device    
• Pause and review up to 120 seconds of previous air/fuel ratios and rpm    
• A selectable relay output can be used as an RPM window switch, lean A/F safety cut-off or vehicle immobilizing anti-theft feature    
• Supports all popular fuel types including Diesel, E85, and Methanol    
• Clean install, no extensive wiring or permanent gauge needed

## Key features

- Monitor air/fuel ratio on iOS device
- Log up to 120 seconds of previous data
- Selectable relay output for RPM window switch
- Supports Diesel, E85, and Methanol fuels
- Clean install, no permanent gauge needed

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/fast-wireless-air-fuel-meter/id1478299555/reviews.md

### 3/5 — No CarPlay

*2026-03-20*

Hard to understand why an AFR fuel meter app wouldn’t be developed compatible with CarPlay so you could easily monitor.

## Frequently asked questions about FAST Wireless Air Fuel Meter

### What is the FAST Wireless Air Fuel Meter app?

The FAST Wireless Air Fuel Meter app allows users to monitor and data log air/fuel ratios directly from their iOS devices. It offers features like reviewing past data and a selectable relay output for various functions.

### What fuel types does the FAST Wireless Air Fuel Meter support?

This app supports a wide range of fuel types, including Diesel, E85, and Methanol. This makes it versatile for different types of vehicles and performance setups.

### Can I review past air/fuel ratio data with the FAST Wireless Air Fuel Meter?

Yes, you can pause and review up to 120 seconds of previous air/fuel ratios and RPM data. This allows for detailed analysis of engine performance.

### Does the FAST Wireless Air Fuel Meter have an anti-theft feature?

Yes, a selectable relay output can be configured as a vehicle immobilizing anti-theft feature. This adds an extra layer of security for your vehicle.

### Is the FAST Wireless Air Fuel Meter app free to download?

Yes, the FAST Wireless Air Fuel Meter app is available for free. It does not have any in-app purchases or require a subscription.

### What devices is the FAST Wireless Air Fuel Meter compatible with?

The FAST Wireless Air Fuel Meter is designed for iOS devices, specifically iPhones and iPods. It requires iOS version 4+.

### How often is the FAST Wireless Air Fuel Meter app updated?

The app was last updated on February 11, 2020, with version 1.0.9. It is rated 5.0 stars from 2 ratings, indicating positive user sentiment.

### Does the FAST Wireless Air Fuel Meter require extensive wiring?

No, the app is designed for a clean install without extensive wiring or the need for a permanent gauge. This simplifies the setup process for users.

## Version history (last 1 release)

### 1.0.9 — 2020-02-11

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)
- [PE Wideband](https://appshunter.io/ios/app/pe-wideband/id1351406709)
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- [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

## Related topics

[fast wireless air fuel meter](https://appshunter.io/ios/topics/fast-wireless-air-fuel-meter)

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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 2026-06-05.*