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Tuck · Baby monitor app

The best baby monitor app for iPhone

TL;DR. A baby monitor app turns two iPhones into a full video monitor — no camera, hub, or base station to buy. Tuck is the iPhone monitor app with on-device AI cry detection and scene captions, a curated lullaby library, a morning sleep diary, and a custom Bluetooth link that keeps working with no Wi-Fi at all. $0 hardware, $14.99/mo, 14-day free trial.

Why use a baby monitor app instead of hardware?

The camera and microphone in any recent iPhone are better than the sensors in almost every dedicated baby monitor on the shelf. A monitor app puts that hardware to work without asking you to buy — and eventually throw away — a single-purpose plastic camera. You reuse a phone you already own, set it up in 30 seconds, and carry the whole monitor in your pocket when you travel.

The trade-offs are real and worth naming. A dedicated unit gives you a fixed overhead mount and, in the case of the Owlet Dream Sock, FDA-cleared vital-sign tracking that no app can match. Tuck does not measure breathing, heart rate, or oxygen, and it is not a medical device. What it gives you instead is a far better camera, genuine offline operation, AI features, and zero hardware cost. For a deeper breakdown, see baby monitor app vs hardware.

How the Tuck app works

  1. Install Tuck on two iPhones

    Download Tuck on the iPhone you carry and on a second iPhone — any model running iOS 17 or later works, including an older phone you'd otherwise retire. No camera, hub, or base station to buy.

  2. Pair them once with a QR code

    Open Tuck on both phones and scan a QR code to pair. The two devices now know each other. Pairing is a one-time step; after that they reconnect automatically.

  3. Set the second phone in the nursery

    Prop the nursery iPhone where it can see the crib and plug it in. It runs Tuck's on-device AI — cry detection, scene captions, and a dim ambient screen — while the parent phone stays in your pocket.

  4. Watch, listen, and soothe from anywhere

    See live 1080p video, hear cry alerts learned to your baby's pattern, talk back through two-way audio, and play a curated lullaby — over Wi-Fi at home or over Bluetooth with no internet at all.

What to look for in a baby monitor app

Tuck vs other baby monitor apps and cameras

The honest comparisons — what each one does better, where Tuck wins, and which to actually buy:

See all 55 comparisons → · Browse alternatives by brand →

Frequently asked questions

What is a baby monitor app?

A baby monitor app turns two phones (or a phone and a tablet) into a baby monitor instead of buying dedicated hardware. One device sits in the nursery as the camera and microphone; the other is the parent unit. Modern apps add cry detection, two-way talk, and night vision. Tuck adds on-device AI scene captions, a curated lullaby library, a morning sleep diary, and a Bluetooth fallback that works without Wi-Fi.

What's the best baby monitor app for iPhone?

The main iPhone-native options are Tuck, Annie Baby Monitor, Bibino, and Cloud Baby Monitor. Tuck is the only one with a custom Bluetooth Coded PHY transport for true offline/airplane-mode use, on-device AI scene understanding, and a curated lullaby library with a sleep timer. Annie and Bibino are mature, well-reviewed Wi-Fi apps; Cloud Baby Monitor is a one-time $6.99 purchase with a Bluetooth mode. See our side-by-side comparisons for the details.

Are baby monitor apps as good as a dedicated monitor?

For video and audio, a recent iPhone's camera and microphone beat most dedicated baby-monitor hardware outright — the sensor is simply better. What dedicated hardware gives you is a fixed overhead mount and, in a few cases (Owlet Dream Sock), FDA-cleared vital-sign tracking. An app like Tuck gives you a far better camera, AI features, zero hardware cost, and portability. Many parents pair an app for video with a wearable for vitals.

Does a baby monitor app use a lot of data or battery?

At home over Wi-Fi, a monitor app uses your local network, not cellular data. Battery is the bigger consideration: keep the nursery phone plugged in. With the screen dimmed and the camera running, Tuck draws roughly 4–6% battery per hour, which is too much for unplugged overnight use on most phones — so plug it in.

Can a baby monitor app work without Wi-Fi?

Most can't — they relay video through the internet. Tuck is the exception: it has a custom Bluetooth Coded PHY link that connects the two paired iPhones directly, with no router, no internet, and no cellular. Audio and a low-rate video slideshow both pass over Bluetooth, so it works on flights, in hotels with broken Wi-Fi, and at off-grid cabins. See our offline baby monitor page for the range numbers.

Is a baby monitor app safe and private?

It depends on the app's architecture. Tuck's live video and audio travel over DTLS-SRTP-encrypted WebRTC (or the encrypted Bluetooth link offline), the two phones must be paired beforehand, and Tuck does not store a rolling recording of your nursery in the cloud. Always check whether an app encrypts its stream and whether it retains footage. We cover this in detail in our "are baby monitor apps safe" guide.

How much does the Tuck baby monitor app cost?

Tuck is $0 hardware — you reuse iPhones you already own — and $14.99/month or $99.99/year (save 44%), with a 14-day free trial. One plan includes live monitoring, two-way talk, cry alerts, AI scene captions, the lullaby library, the morning sleep diary, and free family-viewer access for grandparents and nannies.

Important: Tuck is not a medical device. It does not diagnose, monitor, or treat any medical condition, and it is not a substitute for adult supervision of your baby.

Try the Tuck baby monitor app

Live on the App Store. iPhone, iOS 17+. 14-day free trial — paired in 30 seconds, no extra hardware to buy.