---
title: "100Hz - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "HundredHz is a lightweight tool to help ease motion sickness, inspired by public research on low-frequency sound and inner-ear balance. When you feel uneasy in a car, boat, or plane, put on your headp"
---

# 100Hz — United States
> 100Hz tone for easier travel

![100Hz App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/1c/4f/83/1c4f83b1-5e0e-7e8c-eacd-aaa043649d75/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [午尧 杨](https://apptail.io/developer/developer-ZAVc)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** Tonni.HundredHz
**Store:** Apple App Store
**Country:** United States
**Version:** 1.4 (released 2026-07-18)
**Original Release:** 2026-06-14
**Languages:** English, Chinese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6779241590)
**AppTail Page:** [https://apptail.io/app/100hz-WPUA/united-states](https://apptail.io/app/100hz-WPUA/united-states)

## 100Hz Description
HundredHz is a lightweight tool to help ease motion sickness, inspired by public research on low-frequency sound and inner-ear balance. When you feel uneasy in a car, boat, or plane, put on your headphones, pick a sound, and listen for about a minute to relax and ease travel discomfort.

SOUND LIBRARY
All synthesized on-device, clean and precise:
• 100Hz otolith tone (recommended, a research-based low tone)
• 50Hz / 150Hz low tones
• White noise, pink noise (relax, sleep)
• 100Hz + white noise (layered)

GUIDED BREATHING
An optional breathing guide: inhale 4s, hold 2s, exhale 6s, with a ring that scales to your breath. Slow, deep breathing can itself help with nausea.

ADJUSTABLE DURATION
1 / 3 / 5 minutes. Stops automatically, or stop anytime.

SESSION HISTORY
Every listen is logged — see your day streak, total sessions, and minutes.

MOTION-SICKNESS TIPS
Built-in guidance: why motion sickness happens, practical tips to feel better, and notes on the 100Hz research.

THOUGHTFUL DETAILS
• Headphones recommended for better low-frequency reproduction
• A flowing waveform while playing, with a clear Stop button
• Plays through headphones even with the silent switch on
• Stops automatically on a call or when headphones are unplugged
• English and Chinese, following your system language

PLEASE NOTE
HundredHz is a relaxation and comfort aid based on public research. It is not a medical device and is not a substitute for medical diagnosis or treatment. If discomfort persists or is severe, please consult a doctor; stop immediately if you feel unwell while listening.

## 100Hz Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b7/da/86/b7da861f-ffb2-0385-f384-d4cfb652053c/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-06-14_at_14.02.01.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/13/07/66/1307669e-a41b-bf9a-4daf-4b41bbafbfc3/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-06-14_at_14.02.10.png/1320x2868.png)






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## 100Hz Available In
- [Netherlands](https://apptail.io/app/100hz-WPUA/netherlands)
- [United States](https://apptail.io/app/100hz-WPUA/united-states)
- [Uzbekistan](https://apptail.io/app/100hz-WPUA/uzbekistan)

---

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