Hertzy

Your Frequency & white noise

Only for iPhone

Free · In‑App Purchases

iPhone

New in 1.1: nature soundscapes, streaks & stats, gentle reminders, and Hertzy Pro — one simple one-time unlock with Lock Screen controls. No subscription. Tune in to focus, calm, and sleep. Hertzy turns your phone into a precision sound studio — clean tones, binaural beats, and beautiful nature soundscapes — so you can settle in, switch off, and drift away. Beautifully simple, completely yours. DIAL IN ANY FREQUENCY Glide a smooth rotary dial to land on exactly the tone you want, from a deep 90 Hz hum to a bright 852 Hz shimmer. Pick a tone mode and shape the moment: • Pure tones — a single, steady anchor • Binaural beats — a gentle beat for headphone sessions • Isochronic pulses — you can feel them without earbuds SOUNDSCAPES & NOISE Layer in the sound that suits you: • Nature: rain, ocean, jungle, a crackling fireplace, rain on a roof, a calm summer night, a forest stream, and an airplane cabin • Color noise: white, pink, and brown All levelled to an even volume, looping seamlessly for as long as you like. PRESETS, READY TO GO Tap and you're in — Focus, Calm, Sleep, and Meditation, plus the frequencies the internet loves like 432 Hz and 528 Hz. A new Frequency of the Day greets you each morning. BUILD A WIND-DOWN HABIT • Streaks that celebrate showing up — never punishing • Stats and an active-days view of your listening • Gentle, optional reminders for bedtime and your daily frequency MADE FOR SLEEP • A sleep timer that fades out on its own • Plays with the screen locked and in the background • Save the combinations you love — synced through your private iCloud HERTZY PRO — ONE-TIME, NO SUBSCRIPTION Unlock everything with a single purchase: • Every soundscape and the full preset library • Unlimited saved tones and all-night timers • Lock Screen & Dynamic Island controls — play, pause, and watch your timer • No ads, ever Already removed ads? Thank you — your app stays ad-free. Hertzy is a wellness and relaxation tool. Its tones are not a medical device and are not intended to diagnose, treat, cure, or prevent any condition. The effects of binaural beats are not conclusively proven. Enjoy them as sound, keep the volume comfortable, and consult a professional for medical advice.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Hertzy 1.1 • New nature soundscapes: jungle, fireplace, rain on a roof, a calm night, an airplane cabin, and a forest stream — all volume-balanced. • Streaks & stats to build a gentle wind-down habit. • Optional reminders: a bedtime nudge and a daily frequency. • Hertzy Pro: one simple, one-time purchase unlocks every sound and preset, removes ads, and adds Lock Screen & Dynamic Island controls. No subscription. Already removed ads? Thank you — your app stays ad-free.

Version 1.1.0

The developer, Mark Kunst, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Mark Kunst
Size
27 MB
Category
Health & Fitness
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© Tim Kunst 2026
  • Developer Website
  • Privacy Policy

    • More by Mark Kunst

    You Might Also Like