# X-Series Alarm Scan — user reviews > 23 indexed App Store user reviews of X by Honeywell International Inc., rated 1.00/5 from 2 ratings. - Source: https://appshunter.io/ios/app/x-series-alarm-scan/id1198949717/reviews - App overview in markdown: https://appshunter.io/ios/app/x-series-alarm-scan/id1198949717.md - Rating breakdown: 5★ 0 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 2 ## Newest reviews (12 of 23) ### 1/5 — Poor *2021-10-05, version 2.0.1* Doesn’t work on iPhone 12 Pro ### 1/5 — Won’t work on iPhone 12 *2021-07-04, version 2.0.1* Right as a gas engineer I use this app a lot for co investigations, never had a problem using it on any of my other iPhones so could you let me know if there is a known problem please👍 ### 1/5 — 2021 Honeywell XC70 *2021-06-16, version 2.0.1* Won’t pick up the alarm when scanning, would 0 star if I could. Waste of time. ### 1/5 — Does not work *2021-05-17, version 2.0.1* Outdated and unsupported on any of the modern iOS releases. It requests access to microphone but then cannot “hear” anything. App support website is also no longer online. Should be removed from AppStore. ### 1/5 — Does not work anymore *2021-04-01, version 2.0.1* This was really good but not working on iPhone anymoreDeleted the app and reinstalled it but still not working ### 1/5 — Pointless *2021-01-02, version 2.0.1* As per the other review (that was dated 2 years ago) same problem still. Mine is a XC70, I can hear the noises but the app just doesn’t reading them, utterly pointless and very disappointing. I am Poole/UK based. ### 1/5 — Does not work *2020-11-03, version 2.0.1* Tried to download chirps from an XC100D at least 5 or 6 times, restated app, reinstalled app. Nothing! One time it said unsuccessful, the rest it just kept saying listening for sounds. Hopeless. Why even bother releasing the app?! Also last update was (at the time) 2 years ago. ### 1/5 — XC70 honeywell alarm *2020-10-18, version 2.0.1* Doesn’t work. Won’t connect ### 1/5 — App does not work *2020-09-22, version 2.0.1* Unable to connect the app to my XC70 carbon monoxide alarm using my iPhone 11 Pro Max. Have enabled microphone access. ### 1/5 — Doesn’t work on iPhone 11 Pro *2019-11-19, version 2.0.1* Can’t link devices to app. ### 1/5 — Doesn’t work *2019-09-22, version 2.0.1* App not optimised for newer screen sizes and wont recognise Carbon Monoxide Alarm despite being next to it. ### 1/5 — Charging *2018-01-07, version 1.0.9* Can’t believe you’re charging to use the app, all the other co alarm apps are free to use, what a liberty ## Most critical reviews (10 lowest-rated) ### 1/5 — Does not work *2025-08-17, version 2.0.1* Bought a new iPhone and now the app won’t work. Looking at other reviews this seems to have been a problem for some time. ### 1/5 — Joe *2024-10-25, version 2.0.1* Doesn’t work . Remove it from the library ### 1/5 — Last update 6 years ago. *2024-02-18, version 2.0.1* As the title says. Last updated 6 years ago. Absolutely pointless buying one of these for app integration. Buy the Aico instead. Sort it out Honeywell. 🙄 ### 1/5 — Updates needed *2024-01-31, version 2.0.1* Used to work great but somewhere between the signal and my phone, the picking up of the status for tests has ceased. ### 1/5 — Only works on old phones so don’t buy Honeywell detectors *2024-01-23, version 2.0.1* I’ve bought 5 of these xmodel carbon monoxide detectors for use across 2 houses with in rooms with boilers, open fires, stoves etc. All was fine with this app for downloading the detection data to see which rooms had trace CO. But then I upgraded my iPhone 7 to a 12 and the app stopped working. It acts like the microphone does not work (I’ve checked the app has permission to use the mic) Come on Honeywell, get it fixed. ### 1/5 — App not working *2022-12-02, version 2.0.1* I’ve tried to use the app it doesn’t work. ### 1/5 — Totally Useless. *2022-11-19, version 2.0.1* Wonder if their alarms work as well as the app. ### 1/5 — Not working on iPhone 13 *2022-07-15, version 2.0.1* Was previously happy with this on previous iPhone SE (2nd gen). On iPhone 13, the device pups are not recorded. Please fix! ### 1/5 — Garbage! *2021-12-24, version 2.0.1* Never ever works, given up trying. Worst app in the App Store which Honeywell should be ashamed of. Do the alarms work?? 🤔 ### 1/5 — As others have said, does not work. *2021-11-11, version 2.0.1* Does not work on my iPhone or iPad ## Most praised reviews (1 highest-rated) ### 5/5 — Life saver *2018-10-26, version 2.0.1* Works a treat beauty of it is you can take anywhere for your own peace of mind. Small amount to pay for your life. --- *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 2026-06-01.*