A baby monitor app for two phones

Which two phones work together?

All of them. Mamoon on iPhone and Mamoon on Android send and receive the same video stream, so the phone by the crib and the phone in your hand can be any mix.

The only difference is what happens with no Wi-Fi at all. Two iPhones then link directly, the way AirDrop does, with nothing to switch on. Androids need a network to share, and a hotspot on one of the phones is enough. The no-Wi-Fi guide has the details for hotels and trips.

What you need

• Two phones. The crib phone can be the oldest one in the drawer: an iPhone XS or newer, or any Android 8 or newer. It needs no SIM card and no plan.
• The same Wi-Fi at home, or a hotspot when you're away.
• A charger and a stand for the crib phone. Streaming video all night uses a lot of battery.
• That's all: no account, no e-mail, no sign-up.

Pair them in a minute

1. Install Mamoon on both phones. It's on Google Play now and coming to the App Store.
2. Put one phone by the crib. Open Mamoon on it and choose By the crib. It starts sending at once and shows a QR code.
3. Scan the code with your phone. Open Mamoon on your phone and scan the QR code, or type the six-digit code it shows. You need the code only once; after that the phones find each other by themselves.
4. Place the crib phone. 3–5 feet (1–1.5 m) from the crib, aimed at the mattress, on its charger. The old-phone guide covers the stand, the night light and cord safety.
5. Choose what should wake you. Only loud crying, Crying and fussing, or Every sound. Then mute the nursery and lock your phone: the alerts still come.

Two parents, grandma and a tablet: more than two phones

Mamoon treats your phones as one household. Each phone you add can watch the same crib phone, so both parents get the picture and the cry alert on their own phones, and so can a grandparent on the couch or an old iPad on the kitchen counter.

• Add a phone from any phone: open Household → Add a phone, and scan the QR code it shows with the new phone. You don't have to go back to the nursery.
• Swap which phone is at the crib with one tap, Put by the crib; every other phone in the household follows it.
• Remove a phone and the household forgets it and stops letting it watch: a lost phone, or the babysitter's phone after the weekend.

Each parent phone watches one camera at a time. With a Wi-Fi camera in one room and a phone in another, you switch between them from the menu. An old iPad works too, and makes a big bedside screen.

Is there a free baby monitor app for two phones?

For sound, yes. In Mamoon the sound and the cry alerts are free forever, on as many phones as you like, so you can try the whole setup tonight without paying. The picture costs $29.99 once, for life, or $3.99 a month with 14 days free. Only the watching phone pays; the crib phone is always free, and one purchase covers every device on the same Apple or Google account.

To be fair about it: Cloud Baby Monitor ($6.99) and Baby Monitor 3G ($7.99 per platform) are cheaper one-time video apps, and Dormi gives 4 free hours a month on Android. What Mamoon adds is cry detection on the phone itself, Wi-Fi cameras with night vision as the camera, and no account or server. Which monitors need a subscription lists them all.

Other baby monitor apps for two phones

From the apps' own pages and the US App Store, checked October 13, 2026; see sources. The best baby monitor apps compares them in more depth.

Where Mamoon is weaker

• No talk-back and no lullabies; Bibino and Annie have both.
• Away from home it works through the free Tailscale VPN, which you set up once; Bibino and Annie work anywhere with no setup.
• It's on Google Play now; the iPhone app is coming to the App Store soon.

Frequently asked questions