Violin Tuner - ShiYin

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/