Kemo

Review by eFreeware

Kemo is the phone side of a home monitoring setup: it pairs with doorbells and cameras and puts the live view, the alerts and the conversation in one place. If you own compatible hardware and want to know when someone is at the door or moving around the property, this is the app that does that job. It is free to download, it carries no ads, and it has been picked up by more than a million people since it appeared in late 2019.

What you get is fairly narrow and clearly defined. The app handles device setup, pushes a message the moment a doorbell is pressed or a PIR motion sensor is triggered, and lets you watch in high definition while speaking to whoever is outside. The developer pitches it as a way to talk to and see visitors through your smartphone, wherever you happen to be.

Who the app fits

This is for someone who already has, or plans to buy, a doorbell or camera that works with Kemo. The app is the control layer rather than the hardware, so its usefulness depends on what it is paired with.

The motion alerts are the part I would expect to matter most for anyone watching a yard, driveway or side gate, since a PIR sensor reacts to movement rather than waiting for a press. Two-way audio covers the case where you want to say something rather than just look. Everything runs through the phone.

It is not a general-purpose smart home hub and it does not try to be. The app is rated for Everyone, which fits a utility of this sort.

Setting up devices and getting alerts

Device setup happens inside Kemo, and the developer describes it as easy, a claim I would treat with caution. Pairing a doorbell or camera decides whether the rest of the app is pleasant or frustrating.

Once paired, the alerts are the core of the experience. A press on the doorbell or a trigger from a PIR sensor produces an instant message, which is the difference between noticing a delivery and finding a card later.

The app was last updated in September 2026 with a note about fixing known bugs.

Watching and speaking from a distance

The monitoring side is where Kemo does its best work. The developer says you can watch your home in high definition and both hear and speak to visitors from anywhere, which covers the two things most people actually want from a door camera: a clear look at who is there, and a way to respond without opening the door.

I would expect the live view to be the feature people open most often, with two-way talk the more situational half. Both depend on the camera doing its part.

The 4.0 average across more than 62,000 ratings suggests a broadly satisfied but not uniformly delighted user base. That is a reasonable signal for a companion app of this type, where a lot of the experience sits outside the app itself.

Kemo is free to download and shows no ads, though it does offer in-app purchases.

For a free app with this many installs, that combination is familiar: no advertising to sit through. If you are weighing it up, the price of entry is nothing.

A companion app, not a replacement for hardware

The main thing to understand before installing Kemo is that it is one half of a system. The app pairs devices and relays alerts, but the doorbell, camera and sensors are separate purchases.

Alternatives tend to fall into two groups: apps bundled with a specific brand of camera, and general smart home platforms that fold cameras, lights and sensors into one interface. Kemo sits closer to the first group.

For a straightforward setup built around a doorbell and a couple of sensors, the narrower focus is an advantage rather than a shortcoming.

A straightforward pick for a connected front door

Kemo does a small number of things and does them in a way that makes sense for a household with compatible hardware: pair the devices, alert you when something happens, and let you look and talk from wherever you are. It is free, ad-free and backed by a large install base and a solid if not exceptional rating.

It suits someone who wants a simple window onto their entrance without building out a full smart home. If you are starting from scratch, choose the hardware first and let the app follow.

What's new in version 3.6.2

Optimize known bugs.