Put in your earbuds, press play for 60 seconds, and let a research-backed 100 Hz sound wave help ease your motion sickness.
Download for iPhone$0.99 · No subscription · No ads · No data collection
How It Works
No complicated setup. No waiting for pills to kick in. Just sound science through your earbuds.
Any earbuds work. AirPods are optimal for consistent volume delivery.
A gentle 100 Hz tone stabilizes your vestibular system — the balance center in your inner ear.
The stabilizing effect lasts up to 2 hours. A countdown timer lets you know when to refresh.
The Research
Stillwave is based on a peer-reviewed 2025 study from Nagoya University, Japan.
“Just 1-min exposure to a pure tone at 100 Hz with daily exposable sound pressure levels may improve motion sickness [by stabilizing] autonomic function and balance.”Kagawa T, Kato M, et al. — Environmental Health and Preventive Medicine, 2025
Transport Modes
Different vehicles create different motion patterns. Choose your ride for the best experience.
Why Stillwave
How does sound-based relief stack up against traditional remedies?
| Feature | Stillwave | Pills | Patches | Wristbands |
|---|---|---|---|---|
| Works in 60 seconds | ✓ | ✗ 30-60 min | ✗ 4+ hours | ✗ Variable |
| No drowsiness | ✓ | ✗ | ✗ | ✓ |
| No dry mouth | ✓ | ✗ | ✗ | ✓ |
| Nothing to wear | ✓ Earbuds only | ✓ | ✗ | ✗ |
| Research-backed | ✓ Peer-reviewed | ✓ | ✓ | ✗ Limited |
| Reusable / no refills | ✓ Unlimited | ✗ | ✗ | ✓ |
| Available on iPhone | ✓ | N/A | N/A | N/A |
FAQ
Stillwave is an independent app inspired by the same Nagoya University research that Samsung's Hearapy is based on. Hearapy is currently only available on Android — Stillwave brings the same research-backed concept to iPhone users.
The underlying research, published in Environmental Health and Preventive Medicine (2025), found that a 100 Hz pure tone may help reduce motion sickness symptoms. Individual results may vary. Stillwave is a wellness tool, not a medical device.
Any earbuds or headphones work. AirPods and AirPods Pro are optimal because they deliver consistent volume. The app detects AirPods automatically and shows a confirmation badge.
Yes. Stillwave mixes with other audio — your music, podcasts, or audiobooks continue playing. The 100 Hz tone blends underneath without interference.
Yes. The tone continues playing when you switch to other apps or lock your phone. The 60-second session completes even if you're not looking at the screen.
No. Stillwave is $0.99 one-time purchase. No subscription, no in-app purchases, no ads, and no data collection. You pay once and use it forever.
The 100 Hz tone is a low-frequency sound at moderate volume. However, we recommend parental supervision and consulting a pediatrician for children with hearing sensitivities.
No pills. No patches. No side effects. Just 60 seconds of sound.
Download for iPhone — $0.99