# Earworm — The music mindreading app

> A magic app that predicts a spectator's chosen song or video. (iPhone/iPad app by Marc Kerstein.)

- Source: https://appshunter.io/ios/app/earworm/id953365139 (this page in markdown: same URL + `.md`)
- Developer: [Marc Kerstein](https://appshunter.io/developer/821255617)
- Category: Entertainment, Utilities
- Price: $64.99 with in-app purchases
- Rating: 5.00/5 from 130 App Store ratings · 39 written reviews indexed
- Age rating: 17+
- Requires: iOS 18.2 · 30 MB
- Languages: American English
- Released: 2015-01-09
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/earworm/id953365139/reviews.md

## What is Earworm?

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.

## Key features

- Song prediction effect
- Performable in person or remotely
- Works with borrowed phones
- No accomplice needed
- Any song can be named
- Works with multiple services
- Supports notifications

## Pricing and in-app purchases

Base price: $64.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Earworm Pro | $49.99 | one-time |
| Earworm Remote | $49.99 | one-time |


## Recent user reviews (10 of 39)

All indexed reviews: https://appshunter.io/ios/app/earworm/id953365139/reviews.md

### 5/5 — GOD’S GIFT TO MAGIC!

*2026-07-20, version 4.0.2*

Anything Marc puts together is REAL MAGIC! Buy and don’t think twice!!!!! EARWORM IS ABSOLUTELY BEAUTIFUL!!

### 5/5 — Incredible

*2026-06-14, version 4.0.1*

I have tried countless apps but none compare to the reactions I receive when performing Earworm. It’s so organic and amazing. So personal and brilliant.  Thank you for making this available!

### 3/5 — Out dated

*2025-09-24, version 3.2.3*

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.

### 5/5 — Good app

*2025-07-01, version 3.2.3*

I hope i can make good performance, but i meed more often practice

### 1/5 — UNRELIABLE

*2023-12-16, version 3.2.2*

Crashed not once, but 3 times during a critical moment in a paid performance. Poor resolution after the fact and conclusion of an unstable and unreliable tool for professionals.

### 5/5 — I never review!

*2023-11-14, version 3.2.1*

But I do for this. Have only discovered Marc very recently and his explanations are sincerely on a different level to other magic app developers. In the past few days I’ve bought 3 of his apps and the pro upgrade of Wikitest. As success as my business interest are, if Marc was on board they would be even more successful. I intend to nab him.

### 5/5 — Best app

*2022-05-18, version 3.1.1*

Speechless with the effect! Just try it self!

### 5/5 — Beyond Incredible

*2021-09-17, version 3.0.6*

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.

### 5/5 — Love it.

*2021-02-12, version 3.0.3*

This app is amazing, and definitely a go to! Has not let me down , ever. Highly recommend!

### 5/5 — Please redesign app for ios14

*2020-10-15*

Pleeease

## Frequently asked questions about Earworm

### What does the Earworm app do?

Earworm allows you to perform a magic trick where you can seemingly predict a song or video that a friend is thinking of. It's designed to be easy to perform and can be done in person using the spectator's phone or remotely through a shared link.

### What are the key features of Earworm?

Key features include a song prediction effect, the ability to perform in person or remotely, no accomplice required, the option to name any song, no memory work needed, multi-language support, and compatibility with multiple services beyond just YouTube. It also supports notifications for added confirmation.

### How is Earworm monetized?

The app is free to download and use, but it offers a 'Pro upgrade' for remote performances and may have other in-app purchases for additional features or content. It also includes advertisements.

### What devices is Earworm compatible with?

The app is designed to work with borrowed phones, implying compatibility with both Android and iOS devices. The remote performance feature also relies on users having access to a smartphone to view a video link.

### What are common use cases for Earworm?

Common use cases include entertaining friends at parties, performing impromptu magic tricks, or adding a unique element to social gatherings. The remote feature makes it suitable for long-distance entertainment or online performances.

## Version history (last 5 releases)

### 4.0.3 — 2026-07-21

- Duo left or right button mode
- Web Search bug fixes
- Bottom toolbar for Notes input
- Earworm Remote UI upgrades
- More default screen options

### 4.0.2 — 2026-06-15

- Speech recognition peek goes to peek devices
- Setting to play chosen song on own device

Bugs fixed:
- Speech recognition fixes for some devices
- Settings are now more responsive
- Default site setting fix

### 4.0.1 — 2026-06-09

4.0.1: Bug fixes:
- Web search homepage setting fixed
- “Done” in Notes input now respects language settings (Thanks to 이우주)
- Text more legible with Reduce Transparency enabled (Thanks to Josh Janousky)
- iOS 18.2 support
- Tap search results now load on iOS 18 (for Demian Max)
- Metadata fixes

4.0: Introducing Earworm 4
Earworm 4 is a major update that's free for all users, bringing a brand new design, new input methods, expanded language support, deeper integrations, and more:

Brand New Design
- Earworm 4 brings a brand new design across the entire app.
- Every part of Earworm including each input method has been updated and refined for the latest iOS.

Integrations
- More third-party app integrations added.
- New "Send To Bridge" support added.
- Improved integration setup and account connection.

Translations and Languages
- More translation options added.
- Voice recognition now better respects the device language/locale.
- Improved support for non-English performance workflows.
- Covert Web Search and voice inputs have improved language handling.

Voice Input
- New speech recognition engine for much greater accuracy.
- Offline AI can be used for "fuzzy keywords", which allow speech to flow more naturally while keeping you in control of what is detected. (Requires iOS 26 or later).
- Added black mode for covert use, including brightness control, hidden UI and vibration cues.

Covert Web Search Input
- Covert typing has been rebuilt for the new browser.
- Multiple placeholder text selections.
- Tap on search results to load pages
- Added swipe back and forwards support.
- More language settings, including improved support for non-Latin input.

Notes Input
- Updated to the latest iOS
- Prepend text - allow for a tapped note to already have content, such as a previous list of songs that you're gathering. (With text in the current note ignored on submission).
- Notes input can now work with supported peek devices in Earworm Pro.


Introducing Earworm Pro
Earworm Pro is a new optional one-off upgrade with advanced tools for working performers, such as:


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 Pro is available to purchase in Earworm 4.0 or later.

### 4.0 — 2026-06-07

Introducing Earworm 4

Earworm 4 is a major update that's free for all users, bringing a brand new design, new input methods, expanded language support, deeper integrations, and more:

Brand New Design
- Earworm 4 brings a brand new design across the entire app.
- Every part of Earworm including each input method has been updated and refined for the latest iOS.

Integrations
- More third-party app integrations added.
- New "Send To Bridge" support added.
- Improved integration setup and account connection.

Translations and Languages
- More translation options added.
- Voice recognition now better respects the device language/locale.
- Improved support for non-English performance workflows.
- Covert Web Search and voice inputs have improved language handling.

Voice Input
- New speech recognition engine for much greater accuracy.
- Offline AI can be used for "fuzzy keywords", which allow speech to flow more naturally while keeping you in control of what is detected. (Requires iOS 26 or later).
- Added black mode for covert use, including brightness control, hidden UI and vibration cues.

Covert Web Search Input
- Covert typing has been rebuilt for the new browser.
- Multiple placeholder text selections.
- Tap on search results to load pages (iOS 26 or later)
- Added swipe back and forwards support.
- More language settings, including improved support for non-Latin input.

Notes Input
- Updated to the latest iOS
- Prepend text - allow for a tapped note to already have content, such as a previous list of songs that you're gathering. (With text in the current note ignored on submission).
- Notes input can now work with supported peek devices in Earworm Pro.


Introducing Earworm Pro
Earworm Pro is a new optional one-off upgrade with advanced tools for working performers, such as:


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 Pro is available to purchase in Earworm 4.0 or later.

### 3.2.3 — 2024-09-12

- Bug fixes
- Dark Mode icon a

## Apps similar to Earworm

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [The Architect of Predictions](https://appshunter.io/ios/app/the-architect-of-predictions/id1435982572) | 4.6 (18) | $79.99 | Entertainment |
| [Notarized - Magic & Mentalism](https://appshunter.io/ios/app/notarized-magic-and-mentalism/id6474781273) | 5.0 (2) | Free | Entertainment |
| [Mystiprint](https://appshunter.io/ios/app/mystiprint/id6478911237) | 3.0 (2) | Free | Entertainment |
| [Actions - Magic and Mentalism](https://appshunter.io/ios/app/actions-magic-and-mentalism/id1499137620) | — | Free | Entertainment |
| [ThoughtCast Digital Mentalism](https://appshunter.io/ios/app/thoughtcast-digital-mentalism/id1567445270) | — | Free | Entertainment |
| [PeekSmith (BS Magic)](https://appshunter.io/ios/app/peeksmith-bs-magic/id1498435882) | 3.7 (3) | Free | Entertainment |

## More apps by Marc Kerstein

- [WebFX](https://appshunter.io/ios/app/webfx/id821255613)
- [Diverter](https://appshunter.io/ios/app/diverter/id1081486684)
- [CardTrack - The Card Tracker](https://appshunter.io/ios/app/cardtrack-the-card-tracker/id1081525380)
- [The Jerx](https://appshunter.io/ios/app/the-jerx/id1082369141)
- [WikiTest](https://appshunter.io/ios/app/wikitest/id1177870786)

All apps by Marc Kerstein: https://appshunter.io/developer/821255617

## Related topics

[earworms](https://appshunter.io/ios/topics/earworms)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*
