# TuningForkPlus — Pitch Frequency > Professional audio waveform synthesis tool with precise frequency and amplitude control. (iPhone/iPad app by 丽俨 龚.) - Source: https://appshunter.io/ios/app/tuningforkplus/id6751743458 (this page in markdown: same URL + `.md`) - Developer: [丽俨 龚](https://appshunter.io/developer/1816613061) - Category: Utilities, Music - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 3 MB - Languages: American English, Arabic, Filipino, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Malay and 8 more - Released: 2025-09-04 - Data updated: 2026-06-01 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/tuningforkplus/id6751743458/reviews.md ## What is TuningForkPlus? "Tuning Fork Plus" is a professional audio waveform synthesis tool that generates four fundamental wave types: sine, square, triangle, and sawtooth. It offers precise control over frequency (with A4 standard and custom Hertz values), amplitude, phase, and multi-harmonic overlay for real-time complex sound synthesis. With high-quality audio export capabilities, it is perfect for music production, sound design, auditory experiments, and acoustic testing, making it an essential tool for audio professionals and researchers. Subscription Information: • Subscription Name: Pro Membership • Options: • $0.99/month, auto-renewable • $5.99/year, auto-renewable • $9.99 lifetime access (one-time purchase, no renewal) Prices shown in USD for reference. Actual prices may vary by region. Subscription Terms: 1. Subscribing unlocks all premium features in the app. 2. Subscription options: Lifetime / Monthly / Yearly. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. 3. Your Apple ID account will be charged within 24 hours prior to the end of the current period and automatically renew the subscription. You can disable auto-renewal via iOS Settings: Settings > Apple ID > Subscriptions. 4. Current period cancellations are not allowed, but auto-renewal can be disabled at any time before the next billing cycle. The current subscription remains active until its expiry. 5. If a free trial is offered, it will convert to a paid subscription automatically unless canceled in advance. All purchases are handled by your Apple account, and refunds must be requested through Apple Support. The app cannot process refund requests directly. 6. Subscribing means you have read and agreed to the Privacy Policy and Terms of Use. Contact us: liyangong697@gmail.com Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/gly699/home/privacy_policy ## Key features - Sine, square, triangle, sawtooth wave generation - Precise frequency control (A4 standard, custom Hz) - Amplitude, phase, and multi-harmonic overlay - Real-time complex sound synthesis - High-quality audio export - Music production and sound design tool ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Yearly | $5.99 | per year | | Monthly | $0.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime | $9.99 | one-time | ## Frequently asked questions about TuningForkPlus ### What wave types can TuningForkPlus generate? TuningForkPlus can generate four fundamental wave types: sine, square, triangle, and sawtooth. This allows for a wide range of sound synthesis possibilities for various audio applications. ### How does TuningForkPlus handle subscriptions? TuningForkPlus offers monthly ($0.99), yearly ($5.99), and lifetime ($9.99) subscription options. Subscriptions auto-renew unless canceled 24 hours before the current period ends, and can be managed via iOS Settings. ### Can I try TuningForkPlus before subscribing? Yes, the yearly subscription plan includes a 3-day free trial. This allows users to explore the premium features before committing to a paid subscription. ### What devices is TuningForkPlus compatible with? TuningForkPlus is compatible with iPhone, iPad, and iPod devices. It is designed to run on Apple's mobile operating system. ### How often is TuningForkPlus updated? The latest version of TuningForkPlus is 1.0.2, last updated on February 9, 2026. This indicates a recent update, suggesting ongoing development and support for the application. ### What is the age rating for TuningForkPlus? TuningForkPlus has an age rating of 4+. This means it is suitable for users of all ages, with no mature content restrictions. ### Can I get a refund for TuningForkPlus purchases? All purchases are handled by your Apple account, and refund requests must be made through Apple Support. The app itself cannot process direct refund requests. ### Is TuningForkPlus free to use? TuningForkPlus is free to download and offers basic functionality. However, unlocking all premium features requires a subscription, with options for monthly, yearly, or lifetime access. ## Version history (last 3 releases) ### 1.0.2 — 2026-02-09 1. Compatible with iOS 26 2. Add waveform charts and frequency spectra ### 1.0.1 — 2025-09-17 fixed some bugs ### 1.0.0 — 2025-09-05 No release notes. ## More apps by 丽俨 龚 - [Tracking Beat](https://appshunter.io/ios/app/tracking-beat/id6746391063) - [Vocal Metronome](https://appshunter.io/ios/app/vocal-metronome/id6746410454) - [Guitar Chord Vault](https://appshunter.io/ios/app/guitar-chord-vault/id6747797689) - [Ukulele Chord Master](https://appshunter.io/ios/app/ukulele-chord-master/id6747797770) - [Piano Chord Pro](https://appshunter.io/ios/app/piano-chord-pro/id6747797926) - [Cadence Runner](https://appshunter.io/ios/app/cadence-runner/id6748313445) All apps by 丽俨 龚: https://appshunter.io/developer/1816613061 ## Related topics [tuning fork](https://appshunter.io/ios/topics/tuning-fork) --- *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 2026-06-01.*