Dormi - Baby Monitor

Review by eFreeware

Parents who already have a spare Android phone sitting unused are the people most likely to get value from Dormi. Instead of buying a dedicated monitor, you leave one handset in the nursery as the child device and keep the other with you as the parent unit, turning hardware you own into a live audio and video link.

What that gives you is a monitor built around encrypted streaming, automatic noise detection and night vision, with no ads and no tracking. The app has been on Google Play since 2014, and the install count sits above a million with a 4.0 average from roughly 17,000 ratings, so it is not a novelty project.

I think the appeal is clearest for households with an old phone in a drawer and a reluctance to add another single-purpose gadget to the nursery. The developer's pitch is that the retired handset becomes the monitor, and everything else follows from that idea.

How the two-phone setup works

Dormi splits the job between two devices. One phone stays in the room with your baby and does the listening and watching; the other stays with you and shows what is happening. The connection carries live audio and video, and the developer says it is end-to-end encrypted, so the stream is not something a third party is meant to be able to dip into.

Pairing is handled with auto-discovery, which suggests you do not need to type in addresses or wrestle with network settings to get the two phones talking. Once paired, monitoring can start straight away. The child device is also expected to sit anywhere in the room rather than in one fixed spot, which matters more than it sounds: a monitor that only works from a shelf beside the crib is far less useful than one you can move as the room changes.

Multiple parent devices can connect to a single child device at the same time, so two adults can each keep an eye on the same stream rather than passing one phone back and forth. That matters in a household where both parents want access overnight.

Listening, watching and talking back

The audio side is built around automatic noise detection. Rather than asking you to set a microphone threshold, the app adapts to the background noise in the room and picks out crying, then amplifies it. That removes a fiddly setup step that many monitors push onto the user, and it means the child device can be placed wherever it makes sense in the room.

Video runs with hardware-accelerated H264 encoding, and low-light viewing is handled through GPU processing rather than a separate infrared rig. The developer describes the result as an enhanced image in low light, which is the practical version of night vision for a phone camera. There is also a listen button for checking in when the room is quiet, so you are not relying solely on the app deciding something is worth hearing.

Two-way audio is split into a speak button and a listen button. The speak side lets you say something to your baby while you are on your way to the room, which is the sort of feature that matters at 3 a.m. when you are already moving but not yet there.

Watching more than one child

For families with two or three children, the developer offers companion apps called Dormi² and Dormi³. Each companion app pairs with its own child device, so one handset can watch several at once.

This is a sensible way to extend the same idea rather than asking you to juggle separate apps or separate parent devices. It does mean one child device per child, so the number of spare phones in the house sets the ceiling. If you have been wondering what to do with a drawer full of old handsets, this is one answer.

Where the connection can run

Dormi is designed to use whatever route is available between the two phones. That includes WiFi and mobile data, and the developer lists WiFi Direct and HotSpot as options for situations where there is no internet connection at all. It also reconnects after network changes, which is the kind of behavior you want from something meant to run overnight while a router does whatever routers do.

Because the connection is not tied to one network, the app is not limited to a house. It works at home, across town or across the world, so a parent traveling could check in on a child device left at home. Whether that is reassuring or unsettling is a personal matter, but the capability is there.

The trade-off is that the quality of the link depends on the route it takes. A phone on a weak mobile signal is not going to deliver the same experience as two devices on the same home network, and the app cannot change that.

Background monitoring and the extras

One of the more thoughtful parts of the design is what happens when the screen is off. Dormi keeps running in the background with the display dark, tuned for low battery use so a device can monitor for hours on a charge. During a phone call, the parent device vibrates gently and beeps rather than cutting into the conversation. That is a considerate detail for anyone who takes calls in the evening.

A timestamped activity log records noise, connections, battery and automation events, and there is a connection loss alarm that tells you if the link between the two devices drops. The child device's battery level stays visible, which is the sort of thing you only appreciate after the first time a monitor dies silently at 2 a.m. If the phone has an ambient temperature sensor, that reading is shown too.

Monitoring can be paused with a timer, and the child device can be set to Do Not Disturb automatically. Tasker, Home Assistant and Automate are supported, with Dormi's state exposed so monitoring can be controlled from outside the app.

What it costs and what you need

Dormi is free to download and free of ads, with no analytics or tracking SDKs and no recordings stored in the cloud. The app is end-to-end encrypted, and the stated position is that the safest data is no data. That combination is unusual in a category where subscriptions and cloud storage are common.

The catch is the monitoring allowance. You get four free hours each month with no signup or credit card required, and beyond that the developer sells unlimited monitoring through a subscription or a one-time lifetime purchase on a single device. Four hours a month is enough to try the setup and see whether the two-phone arrangement works in your home, but a nightly monitor is going to need one of the paid options.

The other requirement is physical: you need two Android phones, one of which can be left with your baby. The app also depends on the devices being able to reach each other over one of the supported routes. Recent updates extended support back to older Android versions, which helps if the phone you are repurposing is several generations behind.

Who this suits

The clearest fit is a parent with a spare Android handset and no wish to buy a dedicated monitor. The app turns that handset into the child device, and the phone you already carry becomes the parent unit. If you have two or three children and enough old phones to go around, the companion apps extend the same arrangement across the household.

It also suits people who care about where the audio and video go. The developer's emphasis on encryption, the absence of ads and the refusal to store recordings in the cloud will matter to anyone who has looked at a nursery camera and wondered who else might be watching.

The free monthly allowance makes it reasonable to try before committing, and the lifetime purchase option will appeal to anyone who dislikes recurring subscriptions. What I would keep in mind is that the monitoring itself is only as good as the connection between the two handsets, and that the free tier is a trial rather than a long-term plan.

A monitor for spare-phone households

Dormi is a well-considered take on the baby monitor, and its strongest idea is the one in its name: use the phones you already own. Automatic noise detection removes the setup fiddling, night vision works through the camera you have, and the background behavior shows that the developer thought about what overnight monitoring actually demands. The privacy stance is stated plainly and backed by the absence of ads, tracking and cloud recordings.

The limits are equally clear. You need two Android devices, the app relies on a working route between them, and the free allowance of four hours a month will not cover nightly use, so a subscription or a lifetime purchase is the realistic path for regular monitoring. The 4.0 average from a large body of ratings suggests a capable app rather than a flawless one.

If you have a spare handset and want encrypted monitoring without buying new hardware, this is worth installing and trying within the free hours. If you would rather have a single-purpose device with its own screen and stand, the two-phone approach will feel like more moving parts than you want.

What's new

Extended support to older Android devices (Android 5 – 8).