iPhone Screenshots


The Leeo App allows you to easily setup and manage your Leeo Smart Alert (sold separately).

The Leeo Smart Alert monitors your existing smoke, carbon monoxide, and water (NEW) alarms 24/7 and alerts you if your alarms go off. Use the Leeo app to receive intelligent alerts, check temperature and humidity readings, add emergency contacts, and change the color and brightness of the nightlight. Simple to set up. Easy to manage and gets better over time with new features and improved performance.

Leeo Smart Alert features:
-Simple set up
-Calls friends and family for backup
-Nightlight color adjustment
-IFTTT integration
-Continuous improvements
-Optional loud noise detection

Leeo Smart Alert is currently only available for purchase in the U.S. and requires a U.S. phone number and resident address for all features.

Information about Smart Alert Loud Noise Alerts subscriptions:
- Payment will be charged to your iTunes account at confirmation of purchase.
- Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period.
- Your account will be charged for renewal within 24-hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription.
- You can manage your subscriptions and turn off auto-renewal by going to your Account Settings on the App Store after purchase.
- Read our terms of service and privacy policy for more information.

What’s New

Version 2.1.0

* NEW Loud Noise Detection - Know if there are loud noises in your home
* Misc. UI Improvements
* Bug Fixes and Performance Improvements

Love your Leeo Smart Alert? Let us know by leaving a review. Your feedback helps us grow.

Need support? Tap Help in the Leeo Smart Alert app or visit support.leeo.com for answers to frequently asked questions.

Leeo Smart Alert is currently only available for purchase in the U.S. and requires a U.S. phone number and residential address for all features.

Ratings and Reviews

3.7 out of 5
32 Ratings

32 Ratings

JSW_Wojo ,

Mostly good, issues with notifications.

Really neat concept, and in general I like the device and app. However, my biggest gripe is that notifications (for alerts) don’t seem to work reliably, and they only work with a single device. Reliability is key here since the point of this is remote monitoring, and many homes have more than one occupant so delivering notifications to all devices on the same account would be really nice to have.

Cyaner ,


I’m very pleased with the Leeo app and the device itself. We have three little precious dogs and two homes that we alternate between. I bought a Leeo for each house and could not be happier.

The Leeo app is great and has worked flawlessly. Set-up was a breeze, and each Leeo was up and working on the first try in less than five minutes. The app allows me to name each device and to easily switch between the two. I’m able to customize the night light colors and change my emergency contact info. Alerts display prominently so I can quickly review and most importantly, audio recordings are flat-out crystal clear.

Just this week, an alert was sent when a technician was testing our security system. I wasn’t even thinking about the Leeo going off...that is, until I received a text alert. The link opened the app and there was the audio recording of the alarm event.

I never write app reviews but this Leeo system deserves my praise. I’m here to download the latest update and am amped to see my Leeos will now detect *any* loud noise, not just an alarm.

Leeo is a perfect complement to our home security system. It gives us such peace of mind to protect our pets as well as our property. HIGHLY RECOMMEND!!

CrimsonEcon ,

Brilliant. Efficient. Works.

I wanted something that would notify me if smoke detectors went off while away. Replacing all smoke detectors with Nests would be expensive and a lot of work. Home security system doubly so. Found this device that monitors existing detectors. Installation was a breeze. Less than five minutes and completely smooth. Device is now monitoring and temperature and humidity readings are spot on. Ability to change color and brightness of nightlight feature is a cool bonus. Not sure why others have had problems, but for me setup was a snap and device performs as promised. Much cheaper and simpler than any other solution I've found.


Leeo, Inc.
41.8 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Leeo Inc.
In-App Purchases
  1. Loud Noise Monitoring $4.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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