One tap. Instant alert. No shouting required.

CallBell turns two iPhones into a wireless pager system using Bluetooth. The caller taps a large bell button; the receiver hears an alert sound, a spoken announcement, and sees the screen flash. No Wi-Fi, no dedicated hardware, no complicated setup — just two iPhones and this app. Perfect for shop counters, home care, multi-floor households, and anywhere a voice won't carry.

Download on the App Store

Get it on the App Store

Download on the App Store

Instant Bluetooth Pairing

No Wi-Fi or internet required. Pair two iPhones over Bluetooth and you're ready to go. Previously connected devices are saved, so reconnecting takes just a tap.

One-Tap Call Button

The caller sees a large, easy-to-press bell button front and center. Once connected, a single tap sends the call signal instantly. Simple enough for anyone — young or old.

Sound, Voice & Visual Alerts

When a call arrives, the receiver hears an alert sound and a spoken message announcing who is calling. The screen flashes red and yellow — so even in a noisy environment, you won't miss it.

Two iPhones. That's All You Need.

No special hardware, no subscription, no complicated configuration. Just install the app on two iPhones and you have a complete call system. Set a custom device name so everyone knows which device is which.

Reliable Bluetooth Connection

CallBell connects two iPhones directly over Bluetooth — no internet required. Paired devices are saved to history, so future reconnections are instant. Communication is stable within typical Bluetooth range inside a building.

CONNECT
CALL

Large Bell Button for Instant Calling

The Caller screen features a large, prominent bell button that's impossible to miss. Once the connection is established, pressing it sends a call signal immediately. An optional "Keep Screen On" toggle lets you leave the device on a counter, ready to call at any moment.

Audio & Visual Alerts That Demand Attention

On the Receiver side, an alert tone plays immediately and a voice announces the caller's name repeatedly until acknowledged. The screen flashes between red and yellow, making the alert visible even in loud or busy environments. A dismiss button stops the alert once you're ready.

ALERT
NICKNAME

Custom Device Names for Easy Identification

Give each iPhone a nickname — "Front Counter," "Staff Room," "Mom's Room" — whatever fits your setup. The caller's name is displayed and announced on the receiver's screen, so there's never any confusion about who is calling from where.

Connect. Tap. Done.
That's the whole setup.

3 Steps to Start Calling

1
Set a device name and choose a role

Launch the app and give your iPhone a nickname. Then choose your role — Caller or Receiver. Do this on both iPhones and you're ready to pair.

2
Pair over Bluetooth

Once the Receiver is in standby mode, the Caller scans for nearby devices and taps to connect. Paired devices are saved to history, so future sessions connect in seconds without repeating this step.

3
Tap the bell to send a call

With the connection established, press the large bell button on the Caller screen. The Receiver's iPhone immediately plays an alert, announces the caller's name, and flashes the screen. The Receiver taps Dismiss to acknowledge the call.

Get it on the App Store

Download on the App Store

What Users Are Saying

"I run a small massage studio by myself, and I needed a way to let the receptionist know when I'm ready for the next client. This app does exactly that with zero setup cost. Just two phones and it works perfectly. Couldn't be simpler."

— solo_studio_owner_kenji

"I set this up between my phone and my elderly mother's phone in the next room. She presses the button when she needs me, and I hear it right away in the kitchen. The voice announcement is a brilliant touch — no confusion at all."

— home_caregiver_michiko

"We use this between the first and second floors of our house. No more yelling up the stairs! Pairing was easy, alerts are loud and clear, and the flashing screen means we never miss a call even when music is on. Great little app."

— two_story_home_takeshi

Frequently Asked Questions

Find answers to common questions below.

QDoes the app work without Wi-Fi?

AYes. CallBell uses Bluetooth for direct device-to-device communication. No Wi-Fi, mobile data, or internet connection is required. As long as Bluetooth is enabled on both iPhones, the app works anywhere.
QWhat is the effective range?

ABluetooth typically works reliably within 10–30 meters (30–100 feet), depending on walls and obstacles. The app is designed for same-building use such as adjacent rooms, different floors, or across a shop floor.
QDo I need two iPhones?

AYes. One iPhone acts as the Caller and the other as the Receiver. Install the app on both devices and each one takes the appropriate role from the mode selection screen.
QWill I receive alerts when the app is in the background?

AYes. When the Receiver app is running in the background, incoming calls are delivered as push notifications. Make sure notification permissions are enabled in your iPhone Settings.
QHow much does the app cost?

AThe core app is free to download and use. Some additional features may be available as in-app purchases. Please check the App Store listing for current details.

Get it on the App Store

Download on the App Store
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