# Revol9 — Healing frequencies > Sound-based wellness app using Solfeggio tones and AI-composed audio. (iPhone/iPad app by Revolniu ehf.) - Source: https://appshunter.io/ios/app/revol9/id6754261132 (this page in markdown: same URL + `.md`) - Developer: [Revolniu ehf](https://appshunter.io/developer/1847497430) - Category: Health & Fitness, Music - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 16.0 · 75 MB - Languages: American English - Released: 2026-06-23 - Data updated: 2026-09-26 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/revol9/id6754261132/reviews.md ## What is Revol9? Revol9 is a sound-based wellness app built around Solfeggio tones and scientifically recognized frequencies that support both mental and physical well-being. HEALING FREQUENCIES Explore a curated library of Solfeggio frequencies (174 Hz – 963 Hz), each associated with specific therapeutic benefits — from pain relief and emotional release to intuition and spiritual connection. TINNITUS RELIEF Candle Mode generates broadband noise (pink, white, brown) with optional EQ shaping, designed to mask tinnitus and provide immediate relief. Volume is safety-capped to protect your hearing. AI-COMPOSED AUDIO Nine Engine creates unique ambient compositions tailored to your selected frequency and mood — no two tracks are the same. INSTANT GENERATIVE AUDIO Nine Flow produces real-time procedural soundscapes directly on your device. No network needed, no waiting — immersive audio starts instantly and evolves continuously. TOOLS & MEASUREMENT • Decibel Meter — measure environmental sound levels in real time • Tinnitus Simulator — understand and demonstrate tinnitus frequencies • Sleep Timer — set audio to fade and stop automatically DESIGNED FOR WELLNESS • Cinematic fullscreen player with ambient visuals • Background audio — keep playing with the screen locked • Genre-based browsing across healing categories • Personal favorites and frequency history • Dark, minimal interface designed for relaxation PREMIUM Unlock the full library, AI composition, and advanced tools with a monthly or yearly subscription. Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple ID account settings. Safe listening is our priority — all audio output is volume-limited to protect your hearing. Terms of Use: https://www.revolniu.app/app/terms-of-use Privacy Policy: https://www.revolniu.app/app/privacy-policy ## Key features - Solfeggio frequency library (174 Hz – 963 Hz) - Tinnitus relief with broadband noise - AI-composed ambient music - Real-time generative soundscapes - Decibel meter - Tinnitus simulator - Sleep timer ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Revol9 Premium (Yearly) | $34.99 | per year | | Revol9 Premium (Monthly) | $4.99 | per month | ## Frequently asked questions about Revol9 ### What are the main benefits of using Revol9? Revol9 utilizes Solfeggio tones and scientifically recognized frequencies to support mental and physical well-being. Users can explore benefits like pain relief, emotional release, intuition enhancement, and spiritual connection. ### How does Revol9 help with tinnitus? Revol9 features a 'Candle Mode' that generates broadband noise (pink, white, brown) with optional EQ shaping. This is designed to mask tinnitus and provide immediate relief, with safety-capped volume to protect hearing. ### What is the AI-composed audio feature in Revol9? The Nine Engine within Revol9 creates unique ambient compositions tailored to your selected frequency and mood. This means no two tracks are the same, offering a personalized audio experience. ### Can Revol9 be used offline? Yes, Revol9 offers 'Instant Generative Audio' through Nine Flow, which produces real-time procedural soundscapes directly on your device. This means no network is needed, and immersive audio starts instantly. ### What tools are available in Revol9? Revol9 includes a Decibel Meter to measure environmental sound levels, a Tinnitus Simulator to understand tinnitus frequencies, and a Sleep Timer for automatic audio fade-out. ### How much does Revol9 Premium cost? Revol9 Premium offers monthly and yearly subscription plans. The monthly subscription is $4.99, and the yearly subscription is $34.99. Payment is charged to your Apple ID at purchase confirmation. ### How do I cancel my Revol9 subscription? Subscriptions for Revol9 Premium automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple ID account settings. ### Is Revol9 safe for my hearing? Yes, safe listening is a priority for Revol9. All audio output is volume-limited to protect your hearing, ensuring a safe and enjoyable experience. ## Version history (last 5 releases) ### 1.0.9 — 2026-07-10 - Offline feature ### 1.0.7 — 2026-07-07 - minor fixes ### 1.0.5 — 2026-07-03 - more login options ### 1.0.2 — 2026-06-24 - Minor fix ### 1.0.1 — 2026-06-23 No release notes. ## Apps similar to Revol9 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Zen Timer - Meditation Streak](https://appshunter.io/ios/app/zen-timer-meditation-streak/id6796790130) | — | Free | Health & Fitness | | [Harmonic: Tinnitus Relief](https://appshunter.io/ios/app/harmonic-tinnitus-relief/id6758923584) | — | Free | Health & Fitness | | [Hreyfing](https://appshunter.io/ios/app/hreyfing/id1560197722) | 4.0 (1) | Free | Health & Fitness | | [SheSleep:Sleep & Hormone Track](https://appshunter.io/ios/app/shesleepsleep-and-hormone-track/id6446782814) | 4.0 (4) | Free | Health & Fitness | | [Tinnitus Relief Sound](https://appshunter.io/ios/app/tinnitus-relief-sound/id1557727236) | 1.0 (2) | Free | Health & Fitness | | [Still Tinnitus](https://appshunter.io/ios/app/still-tinnitus/id6465992007) | 5.0 (1) | Free | Health & Fitness | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-26.*