AirNanny
Search "iPhone baby monitor" and most results assume you have two phones — one propped in the nursery on a FaceTime call, one in your pocket. That works, but it ties up two devices, drains both batteries, and usually needs Wi-Fi or cellular data to hold the call. AirNanny does the same job with just the one iPhone you already have on you.
Why you don't need a second phone
The classic "two-phone hack" is really a video call between two devices. It's clever, but it comes with real downsides for a routine you'll repeat every single night:
- Both phones are locked into the call and can't be used for anything else.
- It typically needs Wi-Fi or a data connection to stay stable.
- Video calling drains battery far faster than audio alone.
- Someone has to remember to start (and restart) the call every night.
AirNanny skips all of that. It's audio-only, so it's lighter on battery and doesn't need a second screen anywhere — just your iPhone's microphone streaming to the earbuds in your ears.
Step-by-step: iPhone baby monitor setup
- Download AirNanny from the App Store and open it on your iPhone.
- Connect your earbuds. AirPods, Beats, or any Bluetooth earbuds pair right inside the app.
- Place your iPhone near your baby — on a dresser or shelf a safe distance from the crib, angled toward them.
- Tap start and put your earbuds in. You're now free to move around the house and still hear your baby.
Audio-only vs. a video call setup
| Two-phone video call | AirNanny (one iPhone) | |
|---|---|---|
| Devices needed | 2 phones | 1 iPhone + earbuds |
| Internet required | Usually yes | No |
| Battery drain | High (video) | Low (audio only) |
| Setup each night | Start a call | One tap |
Set up your iPhone baby monitor tonight
Free to download · no second phone, no Wi-Fi needed
Tips for a smoother setup
- Plug your iPhone in if you're monitoring for several hours — the screen and mic staying active will use more battery than idle.
- Turn on Do Not Disturb so notifications don't interrupt monitoring, and allow calls from favorites through in case you need to be reachable.
- Keep the mic unobstructed — avoid resting the phone face-down or behind thick fabric.
Can you use an old iPhone as a baby monitor?
Yes — and it's one of the best uses for an iPhone you've upgraded away from. Because AirNanny is audio-only and works entirely over Bluetooth, it doesn't need a SIM card or a cellular plan. An older iPhone with no active plan works fine: keep it charged, install AirNanny once, and leave it in the nursery as a dedicated monitor while you carry your current phone. No Wi-Fi setup, no account, no monthly fee.
Is there a free iPhone baby monitor?
There are two "free" routes people try. Apple's built-in Live Listen costs nothing but was designed as a hearing-assist feature, so it drops out easily and has short range. The two-phone FaceTime hack is free too, but ties up a second device and usually needs Wi-Fi. AirNanny is free to download and purpose-built for the job: one tap, no second phone, and no network required. If you just want to hear your baby reliably without buying hardware, that's the shortest path.
How AirNanny makes this easier
AirNanny turns the single-iPhone idea into a proper monitor: one tap to start, a stable connection up to 30m / 100ft, and no second device tied up all evening. It's built for the exact use case parents keep improvising with FaceTime — just done properly.
FAQ
No. AirNanny streams audio over Bluetooth between your iPhone and your earbuds, so it works with Wi-Fi and data both off.
Yes, AirNanny supports iPhone and iPad, so an iPad can sit in the nursery just as well as an iPhone.
Yes. AirNanny works over Bluetooth and doesn't need a SIM card, a cellular plan, or Wi-Fi, so an old iPhone makes a great dedicated nursery monitor.
AirNanny is free to download from the App Store, so you can set up an audio baby monitor tonight without buying any hardware.
Turning on Do Not Disturb on the monitoring phone helps avoid interruptions from notifications while AirNanny keeps listening.