# Sound-Field — Turn any device into a speaker

> Turn any device into a speaker (iPhone/iPad app by seiji honda.)

- Source: https://appshunter.io/ios/app/sound-field/id6799573745 (this page in markdown: same URL + `.md`)
- Developer: [seiji honda](https://appshunter.io/developer/1896430544)
- Category: Music, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 5 MB
- Languages: American English, Japanese
- Released: 2026-08-19
- Data updated: 2026-10-15

## What is Sound?

Use the iPhones you already have as speakers.

NOTES
- Around 8 devices is a practical guideline. More devices are more sensitive
  to your Wi-Fi conditions
- Streaming tracks from Apple Music and similar services cannot be played
  because of DRM. Use audio files stored on your device
- No internet connection is required and no audio ever leaves your devices

WHAT IT DOES
- Pick a song on one device and every connected device plays it at the same moment
- Old devices, and devices belonging to friends or family, can join too — just
  install the app. Only the host needs to have the audio file
- Adjust volume and a 5-band equalizer per device, controlled from the host
- Import audio files from your iPhone and send them to the other devices automatically
- If a call or notification cuts the music off, playback picks up where it stopped
- Works on a single device too, as a music player with an equalizer

HOW IT STAYS IN TIME
Devices agree on a shared clock and exchange only "play at this exact moment".
Audio is never streamed between devices, so a shaky signal does not interrupt playback.
Measured offset between devices is under one millisecond.

HOW TO USE
1. Set one device as the host and the others as speakers
2. Join the same Wi-Fi, or simply leave Wi-Fi switched on
3. Pick a song on the host and press play
4. Tap a speaker card to shape that device's sound

## Is Sound safe?

Not enough ratings yet to assess Sound.

## Is Sound legit?

Sound-Field appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Sound is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1 — 2026-09-11

NO MORE SONG LIMIT
The playlist was limited to 3 songs. It is now unlimited,
and the in-app purchase has been removed.

OTHER FIXES
- Better resuming after a call or notification interrupts playback
- The bundled demo track no longer shows a Japanese title in English
- Corrected the equalizer hint, which named the wrong frequency bands
- Added VoiceOver labels for the icon-only controls

### 1.0 — 2026-08-19

No release notes.

## More apps by seiji honda

- [Lock2Cam](https://appshunter.io/ios/app/lock2cam/id6767222283)
- [TapStream Hunt](https://appshunter.io/ios/app/tapstream-hunt/id6767384840)
- [Tilt Hit](https://appshunter.io/ios/app/tilt-hit/id6767581735)
- [Hertz Sense](https://appshunter.io/ios/app/hertz-sense/id6767974523)
- [Causal Loop Diagram](https://appshunter.io/ios/app/causal-loop-diagram/id6769942289)
- [Wash&Shine](https://appshunter.io/ios/app/wash-and-shine/id6769987213)

All apps by seiji honda: https://appshunter.io/developer/1896430544

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-15.*