sfty vs Onelink Home by First Alert
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
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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.
Onelink Home by First Alert
Manage and monitor your connected home devices, including smart smoke and carbon monoxide alarms. Receive emergency notifications and enjoy premium audio and voice commands with integrated smart assistants.
- Device installation and pairing
- Real-time monitoring
- Smoke and CO emergency notifications
- Integrated Amazon Alexa
- Premium audio speaker
- Hands-free voice commands
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Download the Onelink Home app to install, pair, and monitor all of your Onelink by First Alert connected home devices. Now featuring the Onelink Safe & Sound, the 3-in-1 device that combines a hardwired smart smoke and carbon monoxide alarm with a premium speaker and embedded Amazon Alexa voice assistant. With safety notifications in the event of a smoke or CO emergency, plus premium audio and hands-free voice commands, the Safe & Sound adds safety, entertainment, and convenience to any home. The Onelink Home app also supports Onelink Smoke & Carbon Monoxide alarms, providing smart safety and comfort to your home.
Screenshots
Verdict
The clearest difference is rating: sfty at 4.0 against Onelink Home by First Alert's 1.5. Onelink Home by First Alert's advantage is ratings volume (295 vs 1) and review sentiment (9% vs 0%). On price, update cadence, ads and in-app purchases 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.
sfty holds the better App Store score, 4.0 against 1.5. That said, the two scores are not equally well evidenced: Onelink Home by First Alert has 295 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of sfty's written reviews are positive against 9% of Onelink Home by First Alert's, so the app with the better star average is not the one people write more warmly about.
sfty ships an update every 4 months, Onelink Home by First Alert every 3 months. Both last shipped on September 23, 2026.
| Parameter | sfty | Onelink Home by First Alert |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | 1.5 (295 ratings) |
| Positive reviews | 0.0% of reviews | 9.2% of reviews — better |
| Number of ratings | 1 | 295 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 208 MB | 241 MB |
| Age rating | 4+ | 4+ |
| Developer | Sfty AS | First Alert / BRK Brands |
Customer experience
sfty
Onelink Home by First Alert
Bugs and requests
sfty
Not enough reviews yet to summarise bugs or requests.
Onelink Home by First Alert
Reported bugs
4 issues- App fails to recognize existing accounts
- Devices disappear from app and HomeKit
- Alarms going off for no reason
- Inability to silence alarms remotely
Requested features
4 requests- Ability to disable Alexa/Google Home integration
- Improved firmware update process
- More customization options for nightlight and alarm settings
- Better app performance and stability
In-app purchases
sfty
No in-app purchases
Onelink Home by First Alert
No in-app purchases
Questions
Is sfty free?
Is Onelink Home by First Alert free?
Which has better reviews, sfty or Onelink Home by First Alert?
Do sfty or Onelink Home by First Alert have ads?
Which is updated more often, sfty or Onelink Home by First Alert?
Other comparisons
