Comparison

monitorCat vs X

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

monitorCat

Features
Read full description

A lot of smoke/CO detector can NOT send internet notification other than generating loud or pitch noise alarm, the App use your smart phone to listen to the alarm and send real time gmail notification, by which, we extend life to our old smart phone to be as wireless assistant, what's more, we don't have to buy expensive wireless smoke/CO detector and pay monthly fee, the App is free!

About

X

Features
Read full description

With the X-Series Gas Detection mobile app, reading status and configuring your unit is simple and easy. Connect to the device using Bluetooth communications with the push of a button. Once connected, users can interact with X30 & X50 gas monitoring units and X10 remote sensors from their mobile device. From commissioning to maintenance activities, features and functions of the app include: -View operating status and gas concentration at-a-glance -Configure settings at any time, including monitoring levels, outputs, and gas type -Calibrate with a guided step-by-step process or conduct a bump test -Test outputs from the device, including analog, relays, audiovisual indicators, and Modbus communications The X-Series App helps make installation and integration of your unit straightforward. During its lifetime, maintenance activities are also supported by the app. If a sensor needs to be added, changed, or replaced, the mobile app enables gas and sensor configuration updates directly on your phone or tablet. Calibration reminders, reports, and key troubleshooting information like fault codes are accessible for device support. Demo mode is available on the app to explore functionality without needing to connect to a live device. Whether you need to view, test, or re-configure your X10 / X30 / X50 system, the X-Series Gas Detection App provides a user-friendly interface to work with your devices.

Screenshots

monitorCat3 screens
X4 screens

Verdict

The call

The clearest difference is ads: monitorCat at none against X's shown. monitorCat also leads on iOS requirement (8.0 vs 14.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

monitorCat ships an update fortnightly, X every 9 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 4 level
monitorCat versus X: the parameters behind the verdict, then further details
ParametermonitorCatX
PriceFreeFree
Update frequencyFortnightlyEvery 9 days โ€” better
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 โ€” better14.0
Further details โ€” not scored
Size8 MB22 MB
Age rating4+4+
DeveloperWei ZhaoMSA - The Safety Company

In-app purchases

None

monitorCat

No in-app purchases

None

X

No in-app purchases

Questions

Is monitorCat free?
monitorCat is free to download, with no in-app purchases.
Is X free?
X is free to download, with no in-app purchases.
Do monitorCat or X have ads?
X shows ads; monitorCat does not.
Which is updated more often, monitorCat or X?
monitorCat ships an update fortnightly, and X every 9 days. Most recently, monitorCat was updated on November 2, 2026 and X on October 31, 2026.

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