Onelink Home by First Alert vs Flame Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Flame Detector
This app offers advanced flame detection for your home, alerting you to fires hundreds of times faster than traditional smoke alarms. It's designed for spaces where flames should never be, providing instant notifications to your smart device.
- Detects flame hundreds of times faster than smoke alarms
- Instant alerts to smart devices
- Monitors spaces where flames should not exist
- Designed for bedrooms, playrooms, and garages
- Provides real-time fire notifications
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Welcome to a whole new level of fire protection like you’ve never seen before. Developed by a leading-edge team of scientists and fire detection engineers, The Flame Detector is the only product of its kind on the market today. Designed to detect flame, it can detect many home fires hundreds of times faster than traditional smoke alarms. Detect flame in seconds, alerting you to fire much faster and helping prevent fire from ever getting out of hand in the first place. How does a Flame Detector compare to a smoke alarm? Smoke alarms work by detecting small particles of combustion (smoke) that must travel into the smoke alarm’s sensing chamber before ever alarming. Depending on the location of the fire to the proximity of the smoke alarm, it can take tens of minutes before a smoke alarm is activated. The Flame Detector, on the other hand, constantly monitors for the presence of flame in your home, and the moment it detects unwanted fire, you’re notified. It’s that simple! The Flame Detector is beautifully designed to monitor spaces where a flame should never exist, like a child’s bedroom, playroom or even your garage. Thousands of home fires are started by children every year, and more than half of those fires originate in the bedroom. With a Flame Detector, the moment a child lights a match a loud alarm is produced and a push notification is sent to your smart device telling you exactly where the fire started. When dealing with fire, seconds truly count! With the Flame Detector, you can be made aware of flame instantaneously, preventing dangerous home fires from ever occurring.
Screenshots
Verdict
The clearest difference is review sentiment: Flame Detector at 100% against Onelink Home by First Alert's 9%. Flame Detector also leads on rating (5.0 vs 1.5). Onelink Home by First Alert's advantage is ratings volume (306 vs 4) and iOS requirement (10.0 vs 12.0). 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.
Flame Detector holds the better App Store score, 5.0 against 1.5. That said, the two scores are not equally well evidenced: Onelink Home by First Alert has 306 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 9% of Onelink Home by First Alert's written reviews are positive against 100% of Flame Detector's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Onelink Home by First Alert | Flame Detector |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (306 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 9.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 306 — better | 4 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 241 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | First Alert / BRK Brands | Forge Technologies, Inc (NC) |
Customer experience
Onelink Home by First Alert
Flame Detector
Bugs and 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
Flame Detector
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Onelink Home by First Alert
No in-app purchases
Flame Detector
No in-app purchases
Questions
Is Onelink Home by First Alert free?
Is Flame Detector free?
Which has better reviews, Onelink Home by First Alert or Flame Detector?
Do Onelink Home by First Alert or Flame Detector have ads?
Which is updated more often, Onelink Home by First Alert or Flame Detector?
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