OUTSIDIFY vs The Hum FM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Create feedback loops
- Manipulate external sounds
- Use phone as resonant filter
- Capture impulse responses
- Explore real-world acoustics
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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!
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.
- Daily unique broadcasts
- Remixed public domain audio
- Machine-curated content
- Full archive access with membership
- Playlist creation
- Members-only livestream
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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
Verdict
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
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.
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.
OUTSIDIFY ships an update weekly, The Hum FM daily. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.
| Parameter | OUTSIDIFY | The Hum FM |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.9 (15 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 15 — better | 1 |
| Update frequency | Weekly | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.2 — better | 17.0 |
| Further details — not scored | ||
| Size | 8 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | BASTL INSTRUMENTS | QUINTILIAN LLC |
Customer experience
OUTSIDIFY
The Hum FM
In-app purchases
OUTSIDIFY
No in-app purchases
The Hum FM
- Monthly Membership$3.991 Month
- Yearly Membership$34.991 Year
- Founders$49.99








