Features & Capabilities

Earworm is a music prediction effect for professional performers.

Here's what happens:

  • You ask a friend to take out their phone, mute the volume and open YouTube.
  • You then take your friend's phone and play a song, giving the phone back with its screen facing downwards.
  • Now you apparently mentally transmit the thought-of song to your friend.
  • Your friend names any song, turns the volume up on their phone and looks at the screen to hear and see that your prediction was correct... that exact song is playing on their phone!

The entire effect happens on their phone.

Earworm is built for real-world performance. It gives you multiple advanced input methods, flexible reveal options, and powerful integrations so you can adapt the routine to your style, language, and audience.

Everything can be inspected afterwards, with nothing suspicious to find.

Features include:

  • Predict songs, music videos, trailers, or almost any searchable video
  • Multiple input methods, including voice and covert browser input
  • Performable in multiple languages
  • No accomplice required
  • No memory work
  • Integrations with many third-party magic apps
  • Notification support for additional confirmation

And with Earworm Pro:

  • Supports Bluetooth peek devices, including the PeekSmith and Lumen Duo as part of Earworm Pro
  • Never touch their phone with Earworm Remote
  • Enhanced input methods

Earworm Pro is an optional purchase that brings even more advanced performance tools, including:

Enhanced Voice input

  • Automatically detect songs mentioned in conversation.
  • Uses your own funded AI account and API key for best-in-class recognition.
  • Black mode offers a covert input with vibration cues.

Earworm Remote v2

  • Perform Earworm without touching the spectator's phone.
  • A new, even more natural way to share your video link.
  • Auto Redirect and WikiTest integration for pairing and redirecting.

Send To Earworm

  • Allow supported third-party apps to submit to Earworm, letting you reveal a freely chosen song via their input methods.

Peek Device Support

  • New support for compatible peek devices.
  • Live Peek support for the Notes input (to make it seem that you really did predict the chosen song!)
  • Native PeekSmith and Lumen Duo support is built into Earworm Pro

Earworm is designed for performers who want a practical, modern, impossible-looking prediction effect. Video and audio broadcasting of any description (including TV, radio and Internet) of this effect is prohibited without the written consent of its creator.

User Growth & Download Statistics

App
By:
Marc Kerstein
Rating:
5.00
(126)
0.20
Version:
4.0.1 Last updated: 2026-06-09
Version code:
886700890
Creation date:
2015-01-09
Compatible devices:
Size:
30.33MB
Price:
64.99
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-12
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Marc Kerstein
Apple Apps Store
https://apps.apple.com/us/app/earworm/id953365139
Website:
https://marckerstein.com

User Reviews

I’m a solo performer so maybe this is different if you have a assistant with you. Keeping it short, now when you try to submit the song their phone won’t automatically go back to YouTube. Apple will ask you “do you wish to open this in YouTube” which ruins the whole thing. You could try to work around it by saying you’re going to “press play for them” but that’s just not as special. I’d like assistance with this if anyone has work around but honestly I think this app now fails because of this.
by Pr*****, 2025-09-24

There are very few names in the Magic industry that when there name is attached to a product you know it’s going to be incredible. Marc Kerstein is one of those very few names. Earworm is no exception. Highly recommend.
by Po*****, 2021-09-17

This is a fabulous concept . Works like a charm . I love this app so much , I would easily have paid double or triple the price for this effect . Buy it now , or maybe not I want it all to myself .
by Bo*****, 2018-01-18
View all user reviews ›

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