# Pendula - Chaos & Sound — A pendulum toy you can hear

> A pendulum toy you can hear (iPhone/iPad app by Takashi Nemoto.)

- Source: https://appshunter.io/ios/app/pendula-chaos-and-sound/id6790828926 (this page in markdown: same URL + `.md`)
- Developer: [Takashi Nemoto](https://appshunter.io/developer/6790828928)
- Category: Entertainment, Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 8 MB
- Languages: American English, Arabic, Canadian French, German (Germany), Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), Mexican Spanish
- Released: 2026-09-09
- Data updated: 2026-09-14
- User reviews in markdown: https://appshunter.io/ios/app/pendula-chaos-and-sound/id6790828926/reviews.md

## What is Pendula?

Pendula is a relaxing digital toy that turns the physics of the double pendulum into sound and light.

A double pendulum is just a pendulum hanging from another pendulum — yet it moves in a way that never repeats itself. Scientists call it "chaos." Pendula draws that chaos as glowing light trails, and every time a pendulum crosses a string, it plays a gentle musical note.

HOW TO PLAY
- Drag a pendulum up with your finger and let go
- Then simply watch and listen — no two runs are ever the same

MAKE IT YOURS
- Choose 1 to 4 pendulums, each with 2 to 4 links
- Every combination creates a different dance and a different melody

9 SOUND MODES
- Scale / Major / Japanese (koto) / Ambient / Minimal / Lo-fi / Bell / Arpeggio / Synesthesia (sound & color)
- Every mode is tuned so the chaos always sounds pleasant

KIDS' SOUND PACK (one-time in-app purchase)
- Baby Mode: farts, pops, and other funny sounds that babies and toddlers love
- Animal Mode: cute animal calls
- One single purchase unlocks both modes — no subscription

4 VISUAL THEMES
- Neon / Aurora / Sunset / Mono

PERFECT FOR
- Ambient visuals in waiting rooms, cafes, and shops
- Winding down before sleep
- Giggle time with your little ones
- A first, beautiful encounter with chaos and physics

LANGUAGES
English, Japanese, Chinese, Korean, French, Spanish, German, Portuguese, Russian, Arabic

Note: Pendula shows a small banner ad at the bottom of the screen. The app itself does not collect any personal data.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kids' Sound Pack | $0.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-09-11

• Reduced the app size by about 7 MB for a lighter download
• If saved settings cannot be read correctly, they now return to their initial state automatically
• Added a confirmation screen about ad personalization
• Improved the wording around the display language and fixed minor issues

### 1.0 — 2026-09-09

No release notes.

## More apps by Takashi Nemoto

- [Pendulum Wave 3D](https://appshunter.io/ios/app/pendulum-wave-3d/id6794791818)
- [Harmonograph: Pendulum Art](https://appshunter.io/ios/app/harmonograph-pendulum-art/id6794857269)
- [MONKIRI: Wagara Pattern Maker](https://appshunter.io/ios/app/monkiri-wagara-pattern-maker/id6807886508)

All apps by Takashi Nemoto: https://appshunter.io/developer/6790828928

---

*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 2026-09-14.*