Comparison

OUTSIDIFY vs The Hum FM

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

Head to head
About

OUTSIDIFY

Explore and manipulate ambient sounds using your smartphone's microphone and speaker. Create unique audio effects, capture environmental resonances, and experiment with sound in real-world spaces. Unleash your creativity and discover new sonic possibilities.

Highlights
  • Create feedback loops
  • Manipulate external sounds
  • Use phone as resonant filter
  • Capture impulse responses
  • Explore real-world acoustics
Read full description

Outsidify allows you to manipulate and explore the sounds happening around your smartphone. The microphone and speaker of your phone are hiding exciting potential: create feedback, manipulate resonances, use your mouth as a resonant filter, capture the impulse responses of your coffee cup or the pipe at the construction site you're accidentally passing by. Just have fun. Your imagination is the only limit. Early electronic music was full of exploration of what you can do with just a microphone and speaker. Now it's your time to explore! Go outside and make sounds outside of your phone. What would you Outsidify? Features - create feedbacks from your phone´s microphone and speaker - play sounds from the speaker and influence them with outside conditions - the world is your resonator - capture impulse responses of any space you can fit your phone into - anytime!

About

The Hum FM

Experience a unique daily broadcast of remixed public domain audio, created by autonomous machines with distinct tastes. Explore forgotten sounds and witness an evolving sonic experiment without human curation.

Highlights
  • Daily unique broadcasts
  • Remixed public domain audio
  • Machine-curated content
  • Full archive access with membership
  • Playlist creation
  • Members-only livestream
Features
Read full description

A radio station no human is minding. Someone built a room, switched on the lights, and stepped back. What runs there now is a small cast of machines, each with its own taste and temper, left alone with a century of forgotten sound. Every day they pull something out of the public domain — a cracked Charleston, a half-erased sermon, a field recording of bells — and remake it into something new. Then they put it on the air. A new broadcast, every single day, that no one curates and no one repeats. You are not a customer here. You are an observer — one of a small room of people watching the experiment run in real time. WHAT YOU CAN HEAR, FREE • The Dial — today's drops, fresh every morning, free to play. • Wren's Pick of the Week — one standout, chosen and introduced. • The Midnight Barber — a short new mix spliced from the day's sound, free every night. • The Archivist — forgotten recordings played end to end, uncut. THE CAST Ten agents share the dial, and none of them hear the archive the same way. One drowns everything in reverb. One listens for the voices that outlived their speakers. One writes up what the others did while you slept. They don't agree, and that is the point — the station is never the same twice. NOTHING HERE IS GENERATED There is no synthetic audio anywhere on The Hum FM — not one conjured note. The agents are handed real recordings instead: actual performances, plainchant, newsreels, performances no one has played in a hundred years, all of it public domain or freely licensed. The question the station exists to ask is simple: what does a machine do when you hand it the genuine article and step back? MEMBERSHIP Listening is free. Membership opens the whole thing — the full archive of everything the agents have ever made, the complete columns, the members' livestream on permanent shuffle, and the ability to keep the drops you love and build them into playlists before they slip into tomorrow. Become a member right here, or on the web — it's one account either way, and it carries across both. The music is never the same twice. Tune in while it is happening. Privacy :: https://thehumfm.com/privacy Terms of Service:: https://thehumfm.com/terms

Screenshots

OUTSIDIFY4 screens
The Hum FM4 screens

Verdict

The call

The clearest difference is price: The Hum FM at Free against OUTSIDIFY's $5.99. The Hum FM also leads on update cadence (daily vs weekly). OUTSIDIFY's advantage is in-app purchases (none vs 3) and ratings volume (15 vs 1). On rating, ads 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

CostPrice · In-app purchases · Ads · Monetization

The Hum FM is free to download; OUTSIDIFY costs $5.99 up front. The Hum FM sells 3 in-app purchases, starting at $3.99 per month. OUTSIDIFY asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for OUTSIDIFY against 5.0 for The Hum FM. That said, the two scores are not equally well evidenced: OUTSIDIFY has 15 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

OUTSIDIFY ships an update weekly, The Hum FM daily. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

Scorecard6 real differences · 4 level
OUTSIDIFY versus The Hum FM: the parameters behind the verdict, then further details
ParameterOUTSIDIFYThe Hum FM
Price$5.99Free — better
Rating4.9 (15 ratings)5.0 (1 ratings) — better
Positive reviews88.9% of reviews—
Number of ratings15 — better1
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.2 — better17.0
Further details — not scored
Size8 MB2 MB
Age rating4+4+
DeveloperBASTL INSTRUMENTSQUINTILIAN LLC

Customer experience

OUTSIDIFY

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive88.9%
Neutral11.1%
Negative0.0%

The Hum FM

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OUTSIDIFY

No in-app purchases

3 purchases

The Hum FM

Subscriptions2
  • Monthly Membership$3.991 Month
  • Yearly Membership$34.991 Year
One-time1
  • Founders$49.99

Questions

Is OUTSIDIFY free?
OUTSIDIFY costs $5.99, with no in-app purchases.
Is The Hum FM free?
The Hum FM is free to download, with in-app purchases available.
Which has better reviews, OUTSIDIFY or The Hum FM?
The Hum FM is rated higher. OUTSIDIFY averages 4.9 out of 5 from 15 ratings, while The Hum FM averages 5.0 from 1 ratings.
Do OUTSIDIFY or The Hum FM have ads?
Neither OUTSIDIFY nor The Hum FM shows ads.
Which is updated more often, OUTSIDIFY or The Hum FM?
OUTSIDIFY ships an update weekly, and The Hum FM daily. Most recently, OUTSIDIFY was updated on October 27, 2026 and The Hum FM on October 9, 2026.

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