# Tone Audio Analysis > Real-time audio analysis app for exploring sound frequencies and tone tags. (iPhone/iPad app by The Tone Knows.) - Source: https://appshunter.io/ios/app/tone-audio-analysis/id6753812341 (this page in markdown: same URL + `.md`) - Developer: [The Tone Knows](https://appshunter.io/developer/1610407466) - Category: Music, Entertainment - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.1 · 38 MB - Languages: American English - Released: 2026-06-25 - Data updated: 2026-08-20 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/tone-audio-analysis/id6753812341/reviews.md ## What is Tone Audio Analysis? ToneListen is an audio analysis app for exploring the sound around you — including the near-ultrasonic, high-frequency tones the human ear can't hear. Point your device at any environment and ToneListen analyzes the live audio in real time. It reveals the frequency content of a space and detects high-frequency "tone tags" embedded in nearby audio, music, and media — turning your phone into a portable spectrum analyzer and tone reader. WHAT YOU CAN DO - Analyze any environment: Visualize live sound on a real-time spectrum view and see exactly which frequencies are present, from low rumble all the way up to near-ultrasonic. - Hear tone tags: Detect and decode high-frequency tone tags emitted by speakers, displays, TVs, and other media — including tones above the range of human hearing. - On-device media player: Play tone-safe sample files and watch their spectral content render live, so you can study how tone tags look and behave in different conditions. - Location-aware exploration: Use interactive maps to explore and reference where audio analysis is taking place. HOW IT WORKS ToneListen runs high-resolution frequency analysis entirely on your device. It listens through the microphone only while analysis is active, identifies tone patterns in the incoming audio, and displays the results instantly. Nothing needs to leave your phone for this to work. PRIVACY ToneListen uses the microphone solely for on-device audio and tone analysis. No voice, speech, or ambient audio is ever recorded, stored, or transmitted. Microphone input is processed in real time and immediately discarded. PRICING ToneListen is completely free to use. There are no in-app purchases, no subscriptions, and no paid digital content, features, or services unlocked inside the app. Every feature described above is available to all users at no cost, with no account or payment required. ToneListen is ideal for anyone curious about the sounds and signals in their surroundings — from audio enthusiasts and developers to anyone who simply wants to see and hear what is hiding just beyond human hearing. ## Key features - Real-time spectrum analysis - Detects high-frequency tone tags - On-device media player with spectral view - Location-aware audio exploration - Privacy-focused on-device processing ## Frequently asked questions about Tone Audio Analysis ### What can Tone Audio Analysis do? Tone Audio Analysis visualizes live sound frequencies in real-time, detects high-frequency tone tags in media, and includes an on-device player to study spectral content. It also offers interactive maps for location-aware audio exploration. ### Is Tone Audio Analysis free to use? Yes, Tone Audio Analysis is completely free. There are no in-app purchases, subscriptions, or paid content, features, or services. All described features are available to all users at no cost. ### Does Tone Audio Analysis have ads? No, Tone Audio Analysis does not contain advertisements. The app is entirely free and ad-free, with no in-app purchases or subscriptions. ### What devices does Tone Audio Analysis support? Tone Audio Analysis is available on iPhone, iPad, and iPod devices. It runs high-resolution frequency analysis entirely on-device. ### How does Tone Audio Analysis protect user privacy? Tone Audio Analysis uses the microphone solely for on-device audio and tone analysis. No voice, speech, or ambient audio is ever recorded, stored, or transmitted; microphone input is processed in real-time and immediately discarded. ### What is the age rating for Tone Audio Analysis? Tone Audio Analysis has an age rating of 4+. This indicates it is suitable for children and general audiences. ### How often is Tone Audio Analysis updated? The latest version of Tone Audio Analysis was released on June 25, 2026. Updates are typically released to improve functionality and add new features. ### What is the user sentiment for Tone Audio Analysis? Based on the available rating, Tone Audio Analysis has received overwhelmingly positive feedback, with a perfect 5.0 stars from 1 rating. ## Version history (last 4 releases) ### 2.2 — 2026-08-17 Bug fixes ### 2.1 — 2026-07-28 Bug fixes and UI updates ### 2 — 2026-07-23 Bug fixes and UI updates ### 1.0 — 2026-06-25 No release notes. ## More apps by The Tone Knows - [TONE Telegenics](https://appshunter.io/ios/app/tone-telegenics/id6476420592) - [Kroger Wellness Festival](https://appshunter.io/ios/app/kroger-wellness-festival/id6499258414) - [SCG Loyalty](https://appshunter.io/ios/app/scg-loyalty/id6736919061) - [AmpEQ](https://appshunter.io/ios/app/ampeq/id6761928120) - [CAMP Tactical](https://appshunter.io/ios/app/camp-tactical/id6770597428) All apps by The Tone Knows: https://appshunter.io/developer/1610407466 ## Related topics [tone audio analysis](https://appshunter.io/ios/topics/tone-audio-analysis) --- *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 2026-08-20.*