# Tracer - Gas Detector — for various gas leak detection

> Smartphone-powered USB gas detector for methane, propane, formaldehyde, and hydrogen. (iPhone/iPad app by ReFleX Wireless Inc..)

- Source: https://appshunter.io/ios/app/tracer-gas-detector/id6473568941 (this page in markdown: same URL + `.md`)
- Developer: [ReFleX Wireless Inc.](https://appshunter.io/developer/666581212)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 17+
- Requires: iOS 12.0 · 37 MB
- Languages: Japanese, Chinese (Simplified, China), American English
- Released: 2023-12-11
- Data updated: 2026-08-19
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/tracer-gas-detector/id6473568941/reviews.md

## What is Tracer?

Introducing our revolutionary gas detector, designed to detect methane, propane, formaldehyde, and hydrogen with unparalleled accuracy. Powered by your smartphone via USB, eliminating the hassle of battery replacements. With our app-enabled technology, pinpoint the exact sources of gas emissions effortlessly, enhancing safety and peace of mind. Whether at home, work, or on the go, stay informed and protected against potential hazards. Our device offers real-time monitoring and alerts, empowering you to take proactive measures to mitigate risks. Embrace convenience and reliability with our cutting-edge gas detector, ensuring a safer environment for you and your surroundings.

## Key features

- Detects methane, propane, formaldehyde, hydrogen
- Smartphone-powered via USB
- Real-time monitoring and alerts
- Pinpoints gas emission sources
- Enhances safety and peace of mind


## Frequently asked questions about Tracer

### What gases can Tracer detect?

Tracer can detect methane, propane, formaldehyde, and hydrogen. It aims to provide unparalleled accuracy in identifying these potentially hazardous gases.

### How does Tracer get power?

Tracer is powered by your smartphone via a USB connection, eliminating the need for separate battery replacements. This makes it a convenient and always-ready device.

### Does Tracer have ads?

Yes, Tracer contains advertisements. As a free utility app, advertisements are displayed to support its development and availability.

### What devices does Tracer support?

Tracer is supported on iPhone, iPad, and iPod devices. It is designed to work across Apple's mobile ecosystem.

### How often is Tracer updated?

The latest version of Tracer is 1.55, last updated on December 20, 2025. This indicates a recent update, suggesting ongoing development and support.

### What is the age rating for Tracer?

Tracer has an age rating of 17+. This is likely due to the nature of the detected gases and the safety implications involved.

### What do users like about Tracer?

Based on the single rating available, Tracer has achieved a perfect 5.0 stars. Users likely appreciate its accuracy and the convenience of smartphone integration for gas detection.

### Is Tracer suitable for professional use?

While designed for general safety, Tracer's ability to pinpoint emission sources and provide real-time monitoring could make it a useful tool for certain professional applications requiring gas detection.

## Version history (last 5 releases)

### 1.55 — 2025-12-20

system update

### 1.52 — 2025-12-11

UI update

### 1.50 — 2025-11-24

UI updates

### 1.42 — 2025-11-11

bugfix UI translation

### 1.41 — 2025-09-02

bug fixes

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## More apps by ReFleX Wireless Inc.

- [Smart Chef Smart Food Scale](https://appshunter.io/ios/app/smart-chef-smart-food-scale/id995829381)
- [Simpocare](https://appshunter.io/ios/app/simpocare/id1108788863)
- [Counting Scale - SmartCounter](https://appshunter.io/ios/app/counting-scale-smartcounter/id1235312727)
- [BarCounting Smart Scale](https://appshunter.io/ios/app/barcounting-smart-scale/id1332255891)
- [AQWave Bio Recorder](https://appshunter.io/ios/app/aqwave-bio-recorder/id1450992206)
- [Simposcan Scanner App PDF OCR](https://appshunter.io/ios/app/simposcan-scanner-app-pdf-ocr/id1511459218)

All apps by ReFleX Wireless Inc.: https://appshunter.io/developer/666581212

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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.*