# Hibiki Atlas — Record sounds into creatures

> Record sounds into creatures (iPhone/iPad app by Toshihiko Arai.)

- Source: https://appshunter.io/ios/app/hibiki-atlas/id6806557418 (this page in markdown: same URL + `.md`)
- Developer: [Toshihiko Arai](https://appshunter.io/developer/415194231)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 9 MB
- Languages: American English, Japanese
- Released: 2026-09-04
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/hibiki-atlas/id6806557418/reviews.md

## What is Hibiki Atlas?

Flick a glass. Knock the table. Pluck a rubber band. That sound becomes a creature.

Hibiki Atlas turns the things around you into a collection of sounds. Record for three seconds and the app measures fourteen numbers from what it heard — pitch, decay, harmonics, noisiness and more — then builds a slime whose shape and motion come straight from those numbers. No randomness is involved. The same sound always makes the same creature, and a different sound always makes a different one.

What you see is a direct translation of what was measured.

- Color is pitch. Lower sounds are red, and every octave moves the hue along
- Bumps are harmonics. Pure sounds are round; rich ones grow lumpy
- Bells and metal, whose partials sit off the whole numbers, grow lopsided bodies
- Struck sounds shake when you poke them, and the shake lasts exactly as long as the ring
- Sustained sounds breathe slowly, and voices with vibrato tremble at the surface

Merge two specimens and the child inherits from both: pitch lands between the parents, and each harmonic is taken whole from whichever parent was stronger there. No randomness here either, so the same pair always produces the same child.

Features:

- Turn a three second recording into a measured specimen
- Shape and motion derived from the measurements, never from chance
- Merge two specimens into an in-between child
- Keep the original recording and every measurement on your device
- An ensemble that plays your collection back as a piece of music
- A gacha of 100 reference sounds, drawn with coins you earn by recording

No account is needed. Recordings, photos and measurements stay on your device, and the app never sends them anywhere.

A one-time Pro purchase adds analysis graphs, removes ads, imports your own audio files, unlocks every ensemble style, and lets you choose how two specimens merge.

Kitchens, parks, workshops, the walk to school. The world is made of things that ring.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Hibiki Atlas Pro | $3.99 | one-time |



## Version history (last 3 releases)

### 26.9.8 — 2026-09-09

- Clarified the Pro description to match what actually happens (the banner and full-screen ads in the free version are removed)
- Fixed anonymous usage statistics that were not being recorded

### 26.9.6 — 2026-09-06

- Fixed the App Store listing to correctly show Japanese language support
- Updated the "Other apps" list inside the app

### 26.8.29 — 2026-09-04

First release. Record the sounds around you and collect them as specimens.

## More apps by Toshihiko Arai

- [Kami Typing! Typing trainer](https://appshunter.io/ios/app/kami-typing-typing-trainer/id432724804)
- [コメントビューア「Chazuke」for ニコ生コメビュ](https://appshunter.io/ios/app/chazukefor/id548910815)
- [Pitch trainer - Harmonize](https://appshunter.io/ios/app/pitch-trainer-harmonize/id965614965)
- [Jazz Soul RnB Radio Maniac](https://appshunter.io/ios/app/jazz-soul-rnb-radio-maniac/id1308734256)
- [Super Memo](https://appshunter.io/ios/app/super-memo/id1435873085)
- [波動 Hysteric Oscillator](https://appshunter.io/ios/app/hysteric-oscillator/id1473229854)

All apps by Toshihiko Arai: https://appshunter.io/developer/415194231

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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 2026-09-10.*