# Auto Emission Investigator — Check your car emission system

> Check your car emission system (iPhone/iPad app by REDFIRE SOFTWARE LTD.)

- Source: https://appshunter.io/ios/app/auto-emission-investigator/id6498401741 (this page in markdown: same URL + `.md`)
- Developer: [REDFIRE SOFTWARE LTD](https://appshunter.io/developer/1705004640)
- Category: Utilities, Business
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 40 MB
- Languages: English
- Released: 2024-07-16
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/auto-emission-investigator/id6498401741/reviews.md

## What is Auto Emission Investigator?

Auto Emissions Validator provides you with the ability to read data from your vehicle and determine if it's emissions system is functioning correctly.  You may suspect the vehicle has had a DPF removed or is being represented fraudulently.  This app can help you find out.

Our app is designed to work with Bluetooth OBD ELM327 devices to help you keep tabs on your vehicle's emissions system. With our app, you can quickly check if your engine light is on, see if the necessary readiness checks pass, and identify any current Diagnostic Trouble Codes (DTCs). This can help you understand whether your vehicle's emissions system is functioning properly.

The app will provide a test result which will indicate if your vehicle has a functioning emissions system.  If the test fails, it could indicate there is an issue with your vehicle or there is fraud at play.

Our emissions app is designed to work exclusively with Bluetooth ELM327 Low Energy (BLE) devices. These devices, compatible with Bluetooth version 4.0 and higher, offer efficient, low-power connectivity to communicate with your vehicle's onboard diagnostics (OBD) system. ELM327 BLE devices are widely recognised for their reliability and compatibility with a broad range of vehicles, ensuring a seamless connection to monitor your car's emissions status.


## Version history (last 3 releases)

### 1.1.1 — 2024-09-26

This release contains extra features for the test process and more data available from the vehicle.

### 1.1 — 2024-08-22

Overhaul of user interface and design.

### 1.0 — 2024-07-16

No release notes.

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## More apps by REDFIRE SOFTWARE LTD

- [Revelation Tracking](https://appshunter.io/ios/app/revelation-tracking/id6463798883)
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All apps by REDFIRE SOFTWARE LTD: https://appshunter.io/developer/1705004640

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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 2026-05-16.*