Start with two claps

ClapWhistle listens for a clap pattern and makes your nearby phone alert when it recognises it. Set it up before you put the phone down: open the app, allow microphone access and turn the finder on.

  1. In Tune → Signal, choose clap mode or both clap and whistle.
  2. Choose how many claps to use. Two is the default; you can select one to four.
  3. Open Signal check and clap while watching the microphone meter.
  4. Try your alert, then return to the Finder screen and turn the finder on.

Using more than one clap gives the finder a pattern to look for. It can help avoid an alert from a single sudden noise. It still needs a little testing in the room where you plan to use it.

Give your phone a clear signal

Use distinct claps with a short pause between each one, at a natural pace. Avoid a rapid burst or long pauses that make the claps sound like separate events. Begin with your phone on a nearby table and its microphone uncovered.

Once that works, test from farther away in the same room. Cushions, bags, thick cases, television and music can make your signal harder to hear. Your useful range will depend on those conditions and the phone’s microphone.

Check it where you’ll use it. A successful test next to the phone is a good start. Try the sofa, desk or bedroom too, with the screen locked, before relying on it.

Clapping, but nothing happens?

First check that the finder is on and set to the number of claps you’re making. Then open Signal check. If the microphone meter stays still, review microphone permission and your phone’s microphone privacy switch. A call or another recording app may also be using the microphone.

If the meter moves but no signal is recognised, try a quieter room, get closer and increase sensitivity a little. If the signal is recognised but you hear nothing, check the alert separately: sound may be off, volume may be low, or audio may be routed to a Bluetooth device.

Our missed-claps checklist walks through each of those cases. If it works while open but fails after locking, use the battery settings guide.

A finder for phones lost nearby

A clap phone finder is useful when your phone is close enough to hear you and you don’t want to borrow another device to call it. It doesn’t use GPS to track your phone, and it can’t answer when the phone is switched off or the finder was never started.

Can’t make a clear clap, or prefer a different signal? Try whistle mode. You can enable both and use whichever suits the moment.