Protocol

Protocol is a meticulously crafted ambient noise generator for those who appreciate refined design and sonic precision.

• White, pink and brown noise on one touch control
• Frequency from 100 Hz to 3,000 Hz
• Presets for work, focus, relax and sleep
• Plays in the background and on the lock screen
• Collects no data, per its App Store label

• Stability improvements and behind-the-scenes maintenance