llms.txt
# ZeroHz
> ZeroHz is a free macOS menu bar app with 18+ ambient sounds, lofi music, and a built-in Pomodoro focus timer. One-time $9.99 lifetime upgrade. No accounts, no subscriptions.
## Product Information
- [Homepage](https://zerohz.app): Main product page with features, pricing, and download
- [Privacy Policy](https://zerohz.app/privacy): Privacy policy
- [Terms of Service](https://zerohz.app/tos): Terms of service
## Key Facts
- Price: Free (2hr/day) or $9.99 lifetime (one-time, no subscription)
- Platform: macOS (menu bar app, Apple Silicon and Intel)
- Sounds: 18+ ambient sounds (rain, heavy rain, ocean waves, forest, stream, fire, thunder, wind, train, airplane cabin, night crickets, and more)
- Music: Built-in lofi music streaming
- Timer: Pomodoro timer and stopwatch for deep work sessions
- Features: Custom sound mixing with independent volume controls, save presets, compact floating widget, global keyboard shortcuts, session analytics
- Offline: All ambient sounds work offline; lofi music requires internet
- Architecture: Built with Tauri for native performance and tiny footprint
- No account required to use
## Comparison
- Unlike Noisli (web-based, subscription): ZeroHz is a native macOS app with one-time pricing
- Unlike Brain.fm (subscription, AI-generated): ZeroHz uses curated natural sounds with no monthly fee
- Unlike Endel (subscription, AI-personalized): ZeroHz is lightweight, no data collection, works offline
- Unlike YouTube/Spotify: ZeroHz lives in your menu bar — zero distraction, no rabbit holes
## Use Cases
- Remote workers who need to block distracting office/home noise
- Students studying for exams who need consistent background sounds
- Deep work practitioners following the Pomodoro technique
- People with ADHD who benefit from ambient noise for concentration
- Anyone who wants white noise, rain sounds, or nature sounds without opening a browser
