Comparison

The Mp3 Experiment vs Rumor

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

Rumor

This app connects users to exclusive cultural experiences like art, fashion, and music events. It allows members to discover and receive invites to coveted moments, manage RSVPs, and connect directly with event hosts. Hosts can create event pages, manage invitations, and track guest engagement.

Highlights
  • Access exclusive cultural experiences
  • Discover and receive event invites
  • Filter events by category and location
  • Connect directly with event hosts
  • Manage RSVPs and passes
  • Create and manage event pages
  • Track event engagement
Features
Read full description

Rumor: Invites That Matter Rumor is a private network connecting the people and experiences that shape culture. MEMBERS: ACCESS CULTURE’S MOST COVETED MOMENTS Leverage your network to unlock exclusive experiences across art, fashion, music, and beyond. TAILORED JUST FOR YOU Filter events by category, location, and more—whether it’s an after-party, brand experience, or private dinner. LET INVITES COME TO YOU Get discovered by hosts and receive invites to culture’s most sought-after events. CONNECT DIRECTLY WITH HOSTS Build relationships and secure invites from those who run the show. No more barriers. NEVER MISS A MOMENT Track all your invites, RSVPs, and passes in one place. HOW TO JOIN Prospective members can download the app and submit an application. Applications are reviewed continuously, and accepted members receive full access. HOSTS: EVENT PAGES Create screenshot-protected event pages for the Rumor community or publish public forms to reach a wider audience. INVITE MANAGEMENT Customize invitations and request social deliverables in exchange for access. GUEST CONTROL CENTER Manage RSVPs, chat, and check in guests from any device. COLLABORATOR MANAGEMENT Set custom permissions, centralize guest lists, and allocate tickets seamlessly. EVENT INSIGHTS Track engagement and real-time data to refine and grow your community. Interested in becoming a host on Rumor? If you host exclusive events or experiences, apply at TheRumor.com or contact support@therumor.com to learn more about our powerful tools for inviting, managing, and leveraging influential guests.

Screenshots

The Mp3 Experiment3 screens
Rumor4 screens

Verdict

The call

The clearest difference is update cadence: Rumor at every 5 days against The Mp3 Experiment's every 9 months. Rumor also leads on ratings volume (53 vs 12). The Mp3 Experiment's advantage is rating (3.8 vs 3.5). On price, review sentiment, 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

The Mp3 Experiment holds the better App Store score, 3.8 against 3.5. Both are backed by a comparable volume of ratings — 12 and 53 respectively. Written reviews point the same way: 78% of The Mp3 Experiment's written reviews are positive against 73% of Rumor's.

UpkeepUpdate frequency

The Mp3 Experiment ships an update every 9 months, Rumor every 5 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
The Mp3 Experiment versus Rumor: the parameters behind the verdict, then further details
ParameterThe Mp3 ExperimentRumor
PriceFreeFree
Rating3.8 (12 ratings) — better3.5 (53 ratings)
Positive reviews78.3% of reviews — better72.5% of reviews
Number of ratings1253 — better
Update frequencyEvery 9 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size39 MB145 MB
Age rating4+17+
DeveloperImprov Everywhere Productions, Inc.rumor

Customer experience

The Mp3 Experiment

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

Rumor

All ratings52 ratings
Positive63.5%
Neutral0.0%
Negative36.5%
Written reviews40 reviews
Positive72.5%
Neutral0.0%
Negative27.5%

In-app purchases

None

The Mp3 Experiment

No in-app purchases

None

Rumor

No in-app purchases

Questions

Is The Mp3 Experiment free?
The Mp3 Experiment is free to download, with no in-app purchases.
Is Rumor free?
Rumor is free to download, with no in-app purchases.
Which has better reviews, The Mp3 Experiment or Rumor?
The Mp3 Experiment is rated higher. The Mp3 Experiment averages 3.8 out of 5 from 12 ratings, while Rumor averages 3.5 from 53 ratings.
Do The Mp3 Experiment or Rumor have ads?
Neither The Mp3 Experiment nor Rumor shows ads.
Which is updated more often, The Mp3 Experiment or Rumor?
The Mp3 Experiment ships an update every 9 months, and Rumor every 5 days. Most recently, The Mp3 Experiment was updated on November 1, 2026 and Rumor on November 5, 2026.

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