# Frequency Generator: Tone A4 — No fuss tuning fork 20-20000Hz > A simple tuning fork app for generating audio frequencies from 20 Hz to 20,000 Hz. (iPhone/iPad app by Krzysztof Gwiazda.) - Source: https://appshunter.io/ios/app/frequency-generator-tone-a4/id6529535310 (this page in markdown: same URL + `.md`) - Developer: [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) - Category: Utilities, Music - Price: Free - Rating: 3.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 15 · 7 MB - Languages: English - Released: 2024-07-10 - Data updated: 2026-10-24 - Monetization: free ## What is Frequency Generator? Frequency Generator - Tone and Sound Generate audio tones, explore sound frequencies, and find the right pitch with a simple, easy-to-use frequency generator. Whether you are tuning a musical instrument, checking a reference pitch, experimenting with audio frequencies, or exploring sound, this app gives you convenient control over the tone you hear. FREQUENCY GENERATOR Generate sound at an adjustable frequency and explore different pitches. Use the frequency slider or enter a value directly to find the tone you need. TONE GENERATOR WITH VOLUME CONTROL Adjust the sound volume to suit your needs. Fine-tune your listening experience while experimenting with different frequencies and pitches. TUNING FORK AND MUSICAL PITCH REFERENCE Use your phone as a digital tuning fork and pitch reference for musical practice. The standard reference tone of 440 Hz corresponds to A4, also known as concert A. This is a widely used reference for tuning musical instruments. Explore other frequencies to find the tones you need. EXPLORE AUDIO FREQUENCIES Discover how changing frequency affects the pitch of a sound. Move between lower and higher tones and experiment with different audio frequencies for music, sound exploration, and everyday listening. WHY USE FREQUENCY GENERATOR? - Adjustable sound frequency - Direct frequency input - Adjustable volume - Animated visual feedback while generating tones - Convenient audio pitch reference - Simple controls for quick access to sound settings WHO IS IT FOR? Musicians can use a reference tone while practising and tuning instruments. Music students can explore pitch and the relationship between frequency and musical notes. Audio enthusiasts can experiment with generated tones and different frequencies. Everyday users can quickly generate a tone at a frequency of their choice. SIMPLE AND EASY TO USE Open the app, select your frequency, adjust the volume, and generate your tone. Whether you need a tuning reference or a flexible frequency and sound generator, the essential controls are right at your fingertips. Download Frequency Generator and explore the world of sound, one frequency at a time. ## Key features - Adjustable frequency range (20 Hz - 20,000 Hz) - Simple and easy to use interface - Generates audio tones - No complex settings ## Is Frequency Generator safe? Not enough ratings yet to assess Frequency Generator. ## Is Frequency Generator legit? Frequency Generator: Tone A4 appears to be a legitimate app. The AppsHunter Legitimacy Score for Frequency Generator is 90 out of 100 points across 7 verification signals from App Store and developer data. ## Frequently asked questions about Frequency Generator ### What is the frequency range of Tuning Fork Pro? Tuning Fork Pro allows you to set any frequency between 20 Hz and 20,000 Hz. The actual audible range may be limited by your phone's speaker and your own hearing capabilities. ### Is Tuning Fork Pro free to use? Yes, Tuning Fork Pro is available for free. There are no costs associated with downloading or using its core functionality. ### Does Tuning Fork Pro have ads? No, Tuning Fork Pro is ad-free. Users can enjoy the tuning fork functionality without any advertisements interrupting their experience. ### What devices is Tuning Fork Pro compatible with? Tuning Fork Pro is designed for iOS devices, including iPhone, iPad, and iPod. It requires iOS 4+. ### How often is Tuning Fork Pro updated? The app was last updated on July 17, 2024, with version 1.0.1. Future updates will depend on developer plans for improvements or bug fixes. ### What is the age rating for Tuning Fork Pro? Tuning Fork Pro has an age rating of 4+. This indicates it is suitable for children and general audiences. ### What do users think of Tuning Fork Pro? Based on the available data, Tuning Fork Pro has a rating of 3.0 stars from 2 ratings. This suggests a mixed reception from its current user base. ## Version history (last 3 releases) ### 2.0 — 2026-10-13 Improved performance and stability for a smoother tone generation experience. Fine-tune frequencies and volume with ease. ### 1.0.1 — 2024-07-17 Minor bug fix. ### 1.0 — 2024-07-10 No release notes. ## Apps similar to Frequency Generator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Tuning Fork Studio](https://appshunter.io/ios/app/tuning-fork-studio/id6751743458) | 5.0 (1) | Free | Utilities | | [Frequency Detector Analyzer](https://appshunter.io/ios/app/frequency-detector-analyzer/id6752298079) | 4.3 (20) | Free | Utilities | | [Generate Frequency Sounds Hz](https://appshunter.io/ios/app/generate-frequency-sounds-hz/id1516257706) | 3.6 (14) | Free | Utilities | | [Frequency Counter Hz Tuner](https://appshunter.io/ios/app/frequency-counter-hz-tuner/id6761234058) | 3.3 (6) | Free | Utilities | | [HzDetect Music Frequency Tuner](https://appshunter.io/ios/app/hzdetect-music-frequency-tuner/id6759676309) | 5.0 (2) | Free | Utilities | | [Frequency Analyzer](https://appshunter.io/ios/app/frequency-analyzer/id6468837339) | 4.5 (181) | Free | Utilities | ## More apps by Krzysztof Gwiazda - [Blood Test Results: Lab Values](https://appshunter.io/ios/app/blood-test-results-lab-values/id1546740381) - [Body Weight Unit Converter](https://appshunter.io/ios/app/body-weight-unit-converter/id1554478851) - [Blood Sugar Unit Converter](https://appshunter.io/ios/app/blood-sugar-unit-converter/id1556071095) - [Unit Converter For Medics](https://appshunter.io/ios/app/unit-converter-for-medics/id1634088201) - [Hand Bones: Speed Anatomy Quiz](https://appshunter.io/ios/app/hand-bones-speed-anatomy-quiz/id1636013182) - [Foot Bones: Speed Anatomy Quiz](https://appshunter.io/ios/app/foot-bones-speed-anatomy-quiz/id1638990186) All apps by Krzysztof Gwiazda: https://appshunter.io/developer/1546740383 ## Related topics [tuning fork](https://appshunter.io/ios/topics/tuning-fork) · [tuning fork pro](https://appshunter.io/ios/topics/tuning-fork-pro) · [the tuning fork lite](https://appshunter.io/ios/topics/the-tuning-fork-lite) · [endless a-440](https://appshunter.io/ios/topics/endless-a-440) · [a440 tuning fork](https://appshunter.io/ios/topics/a440-tuning-fork) · [audiquo tuning fork](https://appshunter.io/ios/topics/audiquo-tuning-fork) · [the tuning fork](https://appshunter.io/ios/topics/the-tuning-fork) · [tuning fork for watch](https://appshunter.io/ios/topics/tuning-fork-for-watch) · [frequency generator tone](https://appshunter.io/ios/topics/frequency-generator-tone) --- *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 2026-10-24.*