--- title: "Protocol - Sound System - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Protocol is a meticulously crafted ambient noise generator for those who appreciate refined design and sonic precision. Unlike typical white noise apps, Protocol delivers a unique tactile experience t" --- # Protocol - Sound System — United States > Refined noise for focus & calm ![Protocol App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/cd/40/82/cd408231-f4e0-41bb-55ed-269d52fac145/AppIcon-0-0-1x_U007ephone-0-1-85-220.jpeg/434x0w.png) **Developer:** [HSLA0001](https://apptail.io/developer/hsla0001-SUfqb) **Category:** Health Fitness **Rating:** 5.0/5 (4 ratings) **Price:** Free **Bundle ID:** com.hsla0001.protocol **Store:** Apple App Store **Country:** United States **Version:** 0.0.7 (released 2026-06-16) **Original Release:** 2025-05-14 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6745834104) **AppTail Page:** [https://apptail.io/app/protocol-sound-system-Bqyv/united-states](https://apptail.io/app/protocol-sound-system-Bqyv/united-states) ## Protocol Description Protocol is a meticulously crafted ambient noise generator for those who appreciate refined design and sonic precision. Unlike typical white noise apps, Protocol delivers a unique tactile experience through an elegant particle system that responds to your touch. Key Features: - Sophisticated sound palette: Pure white noise, pink noise, and brown noise - seamlessly blended through intuitive touch control - Elegant particle visualization: Minimalist aesthetics with responsive particles that flow and spiral with your movements - Precise frequency control: Fine-tune the sonic character by simply moving your finger across the screen - Haptic feedback: Subtle vibrations provide sensory confirmation when crossing sound thresholds - Remembers your settings: Automatically restores your preferred sound settings between sessions - Works in background: Continue playback while using other apps or when your device is locked - Media controls integration: Control playback from your lock screen or headphones Designed for: - Deep focus during creative work - Meditation and mindfulness sessions - Masking distracting environmental sounds - Creating a calming atmosphere for sleep - Establishing a consistent audio environment for productivity Protocol is created for people who value both function and form. For those who understand that the tools we use should be as thoughtfully designed as they are effective. Download Protocol and experience sound as a system. ## Protocol Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/da/68/8f/da688fe6-dfd3-0935-b8b8-bbe0944b6477/appstore_protocol_01.jpg/1290x2796.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/77/7a/3e/777a3e55-aeb9-918a-fb01-e8154cb2648f/appstore_protocol_02.jpg/1290x2796.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1d/20/12/1d2012e5-ce9c-e7b0-c4e4-65b8021de23b/appstore_protocol_03.jpg/1290x2796.png) ## Protocol Rating Breakdown in United States - 5 stars: 4 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Protocol Reviews in United States ### ***** "Slick" Slick design and simple ui make using this very pleasurable -- Gogool, 2025-06-12 [View all Protocol reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to Protocol - [Athletic Form](https://apptail.io/app/athletic-form-Zscb/united-states) - [Breuckelen Athletic](https://apptail.io/app/breuckelen-athletic-NSKb/united-states) - [催眠球 - 睡眠助手](https://apptail.io/app/app-Wppd/united-states) - [Intuitive 3D Models](https://apptail.io/app/intuitive-3d-models-TDQn/united-states) - [Calorie Counter Food: WrapFast](https://apptail.io/app/calorie-counter-food-wrapfast-AUpp/united-states) - [Void — Meditation](https://apptail.io/app/void-meditation-gmuu/united-states) - [Soundly - White Noise & Sleep](https://apptail.io/app/soundly-white-noise-sleep-aQUu/united-states) - [HeartCam - Heart Rate Monitor](https://apptail.io/app/heartcam-heart-rate-monitor-uXlv/united-states) - [Binaural Beats Healing & Focus](https://apptail.io/app/binaural-beats-healing-focus-YTRw/united-states) - [Hz: Binaural Beats Generator](https://apptail.io/app/hz-binaural-beats-generator-bqcx/united-states) ## Protocol Available In - [United States](https://apptail.io/app/protocol-sound-system-Bqyv/united-states) - [Bulgaria](https://apptail.io/app/protocol-sound-system-Bqyv/bulgaria) - [Bahrain](https://apptail.io/app/protocol-sound-system-Bqyv/bahrain) - [Cyprus](https://apptail.io/app/protocol-sound-system-Bqyv/cyprus) - [Estonia](https://apptail.io/app/protocol-sound-system-Bqyv/estonia) - [Croatia](https://apptail.io/app/protocol-sound-system-Bqyv/croatia) - [Iceland](https://apptail.io/app/protocol-sound-system-Bqyv/iceland) - [Sri Lanka](https://apptail.io/app/protocol-sound-system-Bqyv/sri-lanka) - [Luxembourg](https://apptail.io/app/protocol-sound-system-Bqyv/luxembourg) - [Angola](https://apptail.io/app/protocol-sound-system-Bqyv/angola) - [Malta](https://apptail.io/app/protocol-sound-system-Bqyv/malta) - [Namibia](https://apptail.io/app/protocol-sound-system-Bqyv/namibia) - [Qatar](https://apptail.io/app/protocol-sound-system-Bqyv/qatar) - [Slovenia](https://apptail.io/app/protocol-sound-system-Bqyv/slovenia) - [Slovakia](https://apptail.io/app/protocol-sound-system-Bqyv/slovakia) - [Senegal](https://apptail.io/app/protocol-sound-system-Bqyv/senegal) - [Uganda](https://apptail.io/app/protocol-sound-system-Bqyv/uganda) - [Latvia](https://apptail.io/app/protocol-sound-system-Bqyv/latvia) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*