Violin Tuner - ShiYin

A focused violin practice tool with real-time pitch feedback, fingerboard reference, metronome, recording, and offline privacy-first design.

ShiYin is an offline violin practice companion for students, parents, and teachers. It combines a violin tuner, real-time pitch detection, cents feedback, fingerboard reference, metronome, recording, and structured practice tasks in one focused tool.

Built for violin practice

• Real-time pitch feedback with note name, frequency, and cents deviation.
• Violin tuner for G, D, A, and E strings.
• Fingerboard reference for scales, keys, and positions.
• Standard note playback to help build pitch memory.
• Metronome for steady rhythm practice.
• Recording and playback for reviewing practice sessions.
• Daily practice tasks for intonation, scales, rhythm, and recording review.
• Local practice summaries for tracking consistency and progress.

Who it helps

• Students can practice intonation and scales with immediate visual feedback.
• Parents can understand whether a note is sharp, flat, or stable without perfect pitch.
• Teachers can make post-lesson practice easier to follow and review.

Privacy ShiYin works offline. Microphone audio is processed on device for pitch detection and user-started recording. Your audio and practice data are not uploaded.

Auto-renewable subscriptions

• Subscription names: ShiYin Pro Monthly / ShiYin Pro Yearly
• Duration: 1 month / 1 year
• Price: shown in the App Store and adjusted by region
• Payment and renewal: charged to your Apple ID after purchase confirmation. Subscription renews automatically within 24 hours before the end of the current period unless canceled in iOS Settings > Apple ID > Subscriptions.

Privacy Policy: https://zhuanlan.zhihu.com/p/1999436000947110094 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/