sfty vs First Alert by Resideo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
sfty
This app enhances personal safety by allowing users to share their location with a trusted network. It also features an emergency alarm and integrates with a smart smoke detector for comprehensive home security.
- Location sharing with trusted contacts
- Personal emergency alarm
- Motion detection alerts
- Room temperature monitoring
- Relative air humidity monitoring
- WiFi connectivity for smart detector
Read full descriptionHide full description
Sfty is both a free personal safety app and the main companion of sfty Sense - the WiFi connected smoke detector for apartments. You choose who should be part of your safety network - so they can be notified if something happens. Sfty Sense features: Interconnected, optical smoke detector Supports building wide installation for apartment buildings; warning everyone if a dangerous situation occurs Motion detection and alerts Monitoring of room temperature Monitoring of relative air humidity Connects to your WiFi Free features for all users of the app Follow Me Share your movements with all users so they can keep an eye on you as you go on an adventure or make your way home Help Me Personal alarm that can be triggered with the press of a button Continued use of GPS running in the background can dramatically decrease battery life.
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.
- 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
Read full descriptionHide 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
Verdict
The clearest difference is rating: First Alert by Resideo at 4.8 against sfty's 4.0. First Alert by Resideo also leads on ratings volume (34K vs 1) and review sentiment (22% vs 0%). sfty's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
First Alert by Resideo holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: First Alert by Resideo has 34K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of sfty's written reviews are positive against 22% of First Alert by Resideo's.
sfty ships an update every 4 months, First Alert by Resideo monthly. The most recent releases landed on September 23, 2026 and September 27, 2026 respectively.
| Parameter | sfty | First Alert by Resideo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.8 (34K ratings) — better |
| Positive reviews | 0.0% of reviews | 21.8% of reviews — better |
| Number of ratings | 1 | 34K — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #62 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 208 MB | 211 MB |
| Age rating | 4+ | 17+ |
| Developer | Sfty AS | Resideo Technologies, Inc. |
Customer experience
sfty
First Alert by Resideo
Bugs and requests
sfty
Not enough reviews yet to summarise bugs or requests.
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
sfty
No in-app purchases
First Alert by Resideo
No in-app purchases
Questions
Is sfty free?
Is First Alert by Resideo free?
Which has better reviews, sfty or First Alert by Resideo?
Do sfty or First Alert by Resideo have ads?
Which is updated more often, sfty or First Alert by Resideo?
Other comparisons















