Comparison

PRO1 Connect vs First Alert by Resideo

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

Head to head
About

PRO1 Connect

Effortlessly manage your home's heating and cooling system. Adjust temperatures, create custom schedules, and monitor your thermostat remotely for ultimate comfort and energy savings. Enjoy peace of mind with professional installation and reliable performance.

Highlights
  • Add and manage thermostats
  • Adjust temperatures remotely
  • Create custom schedules
  • Energy saving features
  • Intuitive user interface
  • Seamless setup process
Features
Read full description

Redesigned for ultimate simplicity, efficiency, and control. Easily add and manage your thermostat with a seamless setup process, adjust temperatures through an intuitive interface, and create schedules with just a few taps. Stay connected and comfortable from anywhere, save energy effortlessly, and enjoy complete peace of mind. Elevate your thermostat experience with PRO1 Connect today! Who is PRO1? PRO1 products are designed to maximize the comfort and energy efficiency of your heating and cooling system. Our thermostats and apps are built for ease of use and years of reliable performance. We distribute exclusively through the professional HVAC trade so you can have peace of mind knowing that your thermostat was installed properly by a professional heating and cooling technician.

About

First Alert by Resideo

Monitor and manage your smart home devices for comfort, safety, and water leak detection. Receive alerts whether you're home or away, and integrate with various smart home partners for comprehensive control.

Highlights
  • Whole-home device management
  • Real-time alerts (home/away)
  • Comfort control (thermostats)
  • Smart smoke & CO detection
  • Video monitoring (doorbell/cameras)
  • Water leak detection & shutoff
  • Smart home partner integration
Features
Currently charting
Read full description

Take control of your home’s comfort, safety, and water leak detection with the First Alert app. Whether at home or away, this whole home solution lets you monitor and manage your smart home devices. Powered by our family of brands, the First Alert app is compatible across select Resideo, Honeywell Home and First Alert branded products. Plus, integrate with smart home partners to control additional devices in your home. Start connecting to what matters most with the First Alert app. • Whole-Home Coverage: Manage video, smart smoke & carbon monoxide alarms, select smart thermostats, and water leak detection in one intuitive app. • Alerts Whether Home or Away: Receive alerts for water leaks, motion, smoke or CO incidents and more, so you’re always connected. • Trusted Brands: Powered by select Resideo, Honeywell Home and First Alert devices for reliable, trusted performance. Key Features • Comfort Control: Manage select Honeywell Home smart thermostats, set schedules, enroll in energy-saving programs to help save on utility. • Smart Smoke & Carbon Monoxide Detection: Fire safety you trust is now connected and compatible. Add smart fire & CO safety alerts to your home and stay connected whether home or away. Plus, seamlessly integrate with existing Google Nest Protect Alarms* in your home to expand your safety ecosystem or if it’s time to replace. • Smart Home Awareness Video Offering: Stay connected to First Alert Video Doorbell and Outdoor Cameras with advanced event detection for improved event information (people, pets, vehicles, packages) and notifications. • Water Leak Detection: Water leaks can happen, and the First Alert WiFi Water Leak and Freeze Detector helps detect leaks early and help prevent damage. Plus, our Water Shutoff Device can be installed by a professional to shut off your home’s water supply when it detects water via the sensor cable or paired with the WiFi Water Leak and Freeze Detector. • Smart Home Partner devices: Now control additional devices including Schlage smart locks, Kwikset smart locks and Genie garage door openers for ultimate convenience in one app. Plus, integrate with the leading Smart Home Platforms for the ultimate convenience and control. Expand your home’s protection with our whole home offering. Learn more about our family of connected smart products at Resideo.com/FirstAlertApp • New to our brands? Download the app and easily add devices with a guided setup.

Screenshots

PRO1 Connect4 screens
First Alert by Resideo4 screens

Verdict

The call

The clearest difference is rating: First Alert by Resideo at 4.8 against PRO1 Connect's 4.4. First Alert by Resideo also leads on ratings volume (34K vs 1.2K) and chart position (#72 vs unranked). PRO1 Connect's advantage is monetization model (free vs free with in-app purchases). On price, review sentiment, update cadence and ads there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

First Alert by Resideo holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: First Alert by Resideo has 34K ratings behind it against 1.2K, so its average is the more settled of the two. Written reviews point the same way: 18% of PRO1 Connect's written reviews are positive against 21% of First Alert by Resideo's.

UpkeepUpdate frequency

PRO1 Connect ships an update every 6 weeks, First Alert by Resideo monthly. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 7 level
PRO1 Connect versus First Alert by Resideo: the parameters behind the verdict, then further details
ParameterPRO1 ConnectFirst Alert by Resideo
PriceFreeFree
Rating4.4 (1.2K ratings)4.8 (34K ratings) — better
Positive reviews17.7% of reviews21.5% of reviews — better
Number of ratings1.2K34K — better
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
Best chart rank#72 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size71 MB211 MB
Age rating4+17+
DeveloperPro1Resideo Technologies, Inc.

Customer experience

PRO1 Connect

All ratings1,180 ratings
Positive86.0%
Neutral7.0%
Negative6.9%
Written reviews215 reviews
Positive17.7%
Neutral8.4%
Negative74.0%

First Alert by Resideo

All ratings33,967 ratings
Positive94.9%
Neutral1.8%
Negative3.4%
Written reviews470 reviews
Positive21.5%
Neutral10.9%
Negative67.7%

User reviews

PRO1 Connect

From 1.2K App Store ratings

What we love

  • 🚀 Easy to set up
  • 👍 Reliable control
  • 💡 Helpful customer support

Room to improve

  • 🐛 Frequent connectivity issues
  • 🔍 Confusing user interface
  • 🕰️ Slow performance
  • 🔄 Unreliable app updates

First Alert by Resideo

From 34K App Store ratings

What we love

  • 🚀 Functionality when it works
  • 👍 Useful for smart home monitoring

Room to improve

  • 🐛 Frequent crashes and login issues
  • 🤯 Confusing and unintuitive UI
  • 🔒 Privacy concerns with data collection
  • 🔌 Compatibility issues with other smart home devices

Bugs and requests

PRO1 Connect

Reported bugs

3 issues
  • App freezes when changing temperature
  • Thermostat settings not syncing with app
  • Inability to log in or create account

Requested features

3 requests
  • Dark mode option
  • Improved scheduling capabilities
  • Better integration with smart home platforms

First Alert by Resideo

Reported bugs

3 issues
  • Sign-in button not functioning
  • Delayed HVAC runtime data updates
  • Inability to add new devices

Requested features

3 requests
  • Option to switch between Celsius and Fahrenheit
  • Improved remote sensor integration
  • Apple Watch and landscape mode support

In-app purchases

None

PRO1 Connect

No in-app purchases

None

First Alert by Resideo

No in-app purchases

Questions

Is PRO1 Connect free?
PRO1 Connect is free to download, with no in-app purchases.
Is First Alert by Resideo free?
First Alert by Resideo is free to download, with no in-app purchases.
Which has better reviews, PRO1 Connect or First Alert by Resideo?
First Alert by Resideo is rated higher. PRO1 Connect averages 4.4 out of 5 from 1.2K ratings, while First Alert by Resideo averages 4.8 from 34K ratings.
Do PRO1 Connect or First Alert by Resideo have ads?
Neither PRO1 Connect nor First Alert by Resideo shows ads.
Which is updated more often, PRO1 Connect or First Alert by Resideo?
PRO1 Connect ships an update every 6 weeks, and First Alert by Resideo monthly. Most recently, PRO1 Connect was updated on September 22, 2026 and First Alert by Resideo on September 24, 2026.

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