# The Mp3 Experiment vs Chargebee Events

The clearest difference is update cadence: Chargebee Events at every 2 weeks against The Mp3 Experiment's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Mp3 Experiment ships an update every 9 months, Chargebee Events every 2 weeks. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | The Mp3 Experiment | Chargebee Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (12 ratings)](https://appshunter.io/ios/app/the-mp3-experiment/id537991205/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 39 MB | 241 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Improv Everywhere Productions, Inc.](https://appshunter.io/developer/1141107519) | [Accelevents](https://appshunter.io/developer/1198208094) |

## What reviewers say

### The Mp3 Experiment

[App page](https://appshunter.io/ios/app/the-mp3-experiment/id537991205)

This app synchronizes custom audio playback for participants in a live, participatory audio adventure. Users join an event, and the audio automatically plays in sync, guiding them through humorous, secret instructions in public spaces.

**Highlights:** Synchronized audio playback, Participatory audio adventures, Custom audio file synchronization, Automatic playback at event start, Live event guidance

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Chargebee Events

[App page](https://appshunter.io/ios/app/chargebee-events/id6741518640)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is The Mp3 Experiment free?

The Mp3 Experiment is free to download, with no in-app purchases.

### Is Chargebee Events free?

Chargebee Events is free to download, with no in-app purchases.

### Do The Mp3 Experiment or Chargebee Events have ads?

Neither The Mp3 Experiment nor Chargebee Events shows ads.

### Which is updated more often, The Mp3 Experiment or Chargebee Events?

The Mp3 Experiment ships an update every 9 months, and Chargebee Events every 2 weeks. Most recently, The Mp3 Experiment was updated on October 23, 2026 and Chargebee Events on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*