The Mp3 Experiment vs Chargebee Events
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Mp3 Experiment
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.
- Synchronized audio playback
- Participatory audio adventures
- Custom audio file synchronization
- Automatic playback at event start
- Live event guidance
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This app powers Improv Everywhere's Mp3 Experiment project. The app will synchronize playback of a custom audio file for all participants who have downloaded it and joined the event. Users simply need to have the app open at the event's start time, and the audio will automatically begin playing in sync. The Mp3 Experiment is a participatory audio adventure where attendees download an audio file and listen to synchronized secret instructions in a public space. Hilarity ensues as participants carry out ridiculous, synchronized instructions delivered to their headphones via narrator "Steve" and everyone else tries to figure out what in the world is going on. We stage a new Mp3 Experiment in New York each year and also tour the project to college campuses and festivals around the world. More information: http://mp3experiment.com/
Chargebee Events
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Application for events hosted by Chargebee. Features: the app gives attendees access to the event agenda, important information, event FAQs, attendee networking, and much more!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | The Mp3 Experiment | Chargebee Events |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (12 ratings) — better | — |
| Positive reviews | 78.3% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 9 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 39 MB | 241 MB |
| Age rating | 4+ | 4+ |
| Developer | Improv Everywhere Productions, Inc. | Accelevents |
In-app purchases
The Mp3 Experiment
No in-app purchases
Chargebee Events
No in-app purchases
Questions
Is The Mp3 Experiment free?
Is Chargebee Events free?
Do The Mp3 Experiment or Chargebee Events have ads?
Which is updated more often, The Mp3 Experiment or Chargebee Events?
Other comparisons
