A4 Sound Studio

"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
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Privacy Policy: https://sites.google.com/view/gly699/home/privacy_policy