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Best Kidde Carbon Monoxide Apps

143+ iOS apps curated and reviewed

4.1 avg rating
20 free apps
Updated October 2026

With an average user rating of 4.1★, the kidde carbon monoxide category is one of the App Store's strongest. Browse all 143+ apps we track, sorted so the most loved ones surface first.

Compare top Kidde Carbon Monoxide Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1KiddeKiddeFree4.7★ (6.7K)NoYesOct 2026
2CO2 sensorCO2 sensorFree3.4★ (7)NoNoOct 2026
3OTG CO Leak DetectorOTG CO Leak DetectorFree—NoNoMay 2026
4TekerahezaTekerahezaFree—NoNoSep 2026
5Manjis Gas - VerifyManjis Gas - VerifyFree—NoNoMay 2026
6True SafetyTrue SafetyFree—NoNoOct 2026
7NSI CO MonitorNSI CO MonitorFree—NoNoMay 2026
8Foreign Footprints TWForeign Footprints TWFree—NoNoSep 2026

Top Picks for Kidde Carbon Monoxide

Kidde#1

Kidde by Walter Kidde Portable Equipment

Your link to safety.
Editor's Choice
🌟 Lifestyle
4.7😐(6.7K ratings)
FreeIn-App Purchases
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This app connects to smart home safety devices, providing real-time alerts for smoke, CO, air quality, and water leaks. It offers features like Smart Hush, remote notifications to loved ones, and advanced indoor air quality monitoring through a subscription service.

What We Love

  • 🚀 Easy setup
  • 👍 Helpful app features
  • 🔒 Provides peace of mind
  • 💡 Useful air quality monitoring
  • 👍 Good customer support

Room to Improve

  • 🐛 Frequent false alarms
  • 🐛 Connectivity issues
  • 🐛 Buggy app and firmware
  • 👎 Paywalled features
  • 👎 Poor user experience
CO2 sensor#2

CO2 sensor by sighmon

Display SCD-41 CO2 readings.
Strong Contender
🔧 Utilities
3.4(7 ratings)
Free
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Monitor CO2, temperature, and humidity levels in real-time using a Bluetooth sensor. Save readings with location data and sync them across Apple devices via iCloud. View historical data on a map.

More Kidde Carbon Monoxide apps to explore

FAQ about Kidde Carbon Monoxide

What are the best kidde carbon monoxide apps for iPhone?
Kidde tops our kidde carbon monoxide apps ranking as of October 2026, with a 4.7-star average from 6.7K App Store ratings, and it's free to download.
Yes — 20 of the top kidde carbon monoxide apps we rank are free to download, including Kidde and CO2 sensor.
Kidde has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 143+ kidde carbon monoxide apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.