Best Gas Detector Apps

250+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated October 2026

Every iPhone needs a few good gas detector apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Gas Detector Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Tracer - Gas DetectorTracer - Gas DetectorFree3.7★ (3)NoNoOct 2026
2GP NOVA gas detectorGP NOVA gas detectorFree—NoNoMay 2026
3Hansen Gas DetectorHansen Gas DetectorFree—NoNoMay 2026
4Gas DetectionGas DetectionFree5.0★ (2)NoNoMay 2026
5SYGNAL - Gas Detector TrainingSYGNAL - Gas Detector TrainingFree—NoYesOct 2026
6Copeland CRLDSCopeland CRLDSFree5.0★ (1)NoNoSep 2026
7CO2 sensorCO2 sensorFree3.4★ (7)NoNoOct 2026
8Gas Detection AssistGas Detection AssistFree—NoNoJul 2026

Top Picks for Gas Detector

Tracer - Gas Detector#1

Tracer - Gas Detector by ReFleX Wireless Inc.

for various gas leak detection
Editor's Choice
🔧 Utilities
3.7(3 ratings)
Free
Tracer - Gas Detector screenshot 1
Tracer - Gas Detector screenshot 2
Tracer - Gas Detector screenshot 3
Tracer - Gas Detector screenshot 4

This app works with a smartphone-powered USB device to detect various gas leaks like methane and formaldehyde. It provides real-time monitoring and alerts to enhance safety at home or work. Pinpoint emission sources effortlessly for peace of mind.

More Gas Detector apps to explore

FAQ about Gas Detector

What are the best gas detector apps for iPhone?
Tracer - Gas Detector tops our gas detector apps ranking as of October 2026, with a 3.7-star average from 3 App Store ratings, and it's free to download.
Yes — 20 of the top gas detector apps we rank are free to download, including Tracer - Gas Detector and GP NOVA gas detector.
Tracer - Gas Detector has no ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 250+ gas detector apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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