The Mp3 Experiment vs Met Opera
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/
Met Opera
Access rush ticket lotteries and purchase regular tickets for Metropolitan Opera performances. Discover productions, browse the calendar, and secure exclusive discounts. Digital tickets are delivered directly within the app.
- Enter rush ticket lotteries
- Purchase regularly priced tickets
- Access exclusive discounts
- Buy same-day or advance tickets
- Digital ticket delivery
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The official Metropolitan Opera app is the only way to access rush ticket lotteries for every Met performance. You can also purchase regularly priced tickets for any production at the Metropolitan Opera House in Lincoln Center, and gain access to exclusive discounts on select performances throughout the year. Don’t know which opera to see? Use the app to learn about every production this season, and peruse the performance calendar to see what’s on stage on a day that works for you. Features: • Enter rush ticket lotteries for your chance to purchase $25 tickets • Purchase regularly priced tickets instantly • Access exclusive discounts on select performances • Purchase same-day tickets, or book in advance • Digital tickets are delivered directly in the app, so you never have to worry about misplacing an email or a paper ticket.
Screenshots
Verdict
The clearest difference is rating: Met Opera at 4.9 against The Mp3 Experiment's 3.8. Met Opera also leads on update cadence (fortnightly vs every 9 months) and ratings volume (4.2K vs 12). The Mp3 Experiment's advantage is monetization model (free vs free with in-app purchases) and review sentiment (78% vs 57%). 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.
Met Opera holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: Met Opera has 4.2K ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 78% of The Mp3 Experiment's written reviews are positive against 57% of Met Opera's, so the app with the better star average is not the one people write more warmly about.
The Mp3 Experiment ships an update every 9 months, Met Opera fortnightly. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | The Mp3 Experiment | Met Opera |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (12 ratings) | 4.9 (4.2K ratings) — better |
| Positive reviews | 78.3% of reviews — better | 57.1% of reviews |
| Number of ratings | 12 | 4.2K — better |
| Update frequency | Every 9 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 39 MB | 95 MB |
| Age rating | 4+ | 17+ |
| Developer | Improv Everywhere Productions, Inc. | Metropolitan Opera Association, Inc. |
Customer experience
The Mp3 Experiment
Met Opera
Bugs and requests
The Mp3 Experiment
Not enough reviews yet to summarise bugs or requests.
Met Opera
Reported bugs
3 issues- Seats available online not shown in the app
- Online ticket purchase not working
- App does not recognize member status
Requested features
2 requests- Alphabetical list of what's on for the season
- Allow login with ID number like website
In-app purchases
The Mp3 Experiment
No in-app purchases
Met Opera
No in-app purchases
Questions
Is The Mp3 Experiment free?
Is Met Opera free?
Which has better reviews, The Mp3 Experiment or Met Opera?
Do The Mp3 Experiment or Met Opera have ads?
Which is updated more often, The Mp3 Experiment or Met Opera?
Other comparisons
