Comparison

The Mp3 Experiment vs Metrograph

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Synchronized audio playback
  • Participatory audio adventures
  • Custom audio file synchronization
  • Automatic playback at event start
  • Live event guidance
Features
Read full description

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/

About

Metrograph

Access a curated selection of films and exclusive series, including new releases and rediscoveries. Watch content from the cinema at home or on the go, and create your personal watchlist. Enjoy bonus content and interviews.

Highlights
  • Curated film library
  • Exclusive series
  • Streaming premieres
  • Bonus content and interviews
  • Watchlist creation
  • Offline viewing
Read full description

Metrograph is the ultimate destination for movie lovers. From new releases to exciting rediscoveries, and exclusive series, Metrograph provides the best in curation, in theater and available on demand. Watch films and series screening exclusively at Metrograph’s cinemas from the comfort of your home or on the go on our new mobile app, or curate your own watchlist of films on the platform. FEATURES - The Metrograph Pictures library, plus limited engagements, curated collections, and titles hand selected by Metrograph’s programming team. - Films and series screening in Metrograph’s theaters and streaming exclusively on Metrograph At Home. - Streaming Premieres, original bonus content, interviews with your favorite directors, introductions from guest curators, and more. - Watch list and offline viewing. Terms of Service: https://watch.metrograph.com/tos Privacy Policy: https://watch.metrograph.com/privacy

Screenshots

The Mp3 Experiment3 screens
Metrograph4 screens

Verdict

The call

The clearest difference is rating: Metrograph at 4.5 against The Mp3 Experiment's 3.8. Metrograph also leads on update cadence (every 4 months vs every 9 months) and review sentiment (90% vs 78%). The Mp3 Experiment's advantage is monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Metrograph holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 12 and 30 respectively. Written reviews point the same way: 78% of The Mp3 Experiment's written reviews are positive against 90% of Metrograph's.

UpkeepUpdate frequency

The Mp3 Experiment ships an update every 9 months, Metrograph every 4 months. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
The Mp3 Experiment versus Metrograph: the parameters behind the verdict, then further details
ParameterThe Mp3 ExperimentMetrograph
PriceFreeFree
Rating3.8 (12 ratings)4.5 (30 ratings) — better
Positive reviews78.3% of reviews90.0% of reviews — better
Number of ratings1230 — better
Update frequencyEvery 9 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple TV
Requires iOS15.1 — better16.6
Further details — not scored
Size39 MB68 MB
Age rating4+17+
DeveloperImprov Everywhere Productions, Inc.Metrograph

Customer experience

The Mp3 Experiment

All ratings12 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews23 reviews
Positive78.3%
Neutral4.3%
Negative17.4%

Metrograph

All ratings30 ratings
Positive83.3%
Neutral3.3%
Negative13.3%
Written reviews10 reviews
Positive90.0%
Neutral0.0%
Negative10.0%

In-app purchases

None

The Mp3 Experiment

No in-app purchases

None

Metrograph

No in-app purchases

Questions

Is The Mp3 Experiment free?
The Mp3 Experiment is free to download, with no in-app purchases.
Is Metrograph free?
Metrograph is free to download, with no in-app purchases.
Which has better reviews, The Mp3 Experiment or Metrograph?
Metrograph is rated higher. The Mp3 Experiment averages 3.8 out of 5 from 12 ratings, while Metrograph averages 4.5 from 30 ratings.
Do The Mp3 Experiment or Metrograph have ads?
Neither The Mp3 Experiment nor Metrograph shows ads.
Which is updated more often, The Mp3 Experiment or Metrograph?
The Mp3 Experiment ships an update every 9 months, and Metrograph every 4 months. Most recently, The Mp3 Experiment was updated on October 2, 2026 and Metrograph on September 20, 2026.

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