Vocal Warmup is a practical daily training companion for singers, vocal students, and music lovers. From gentle warm-ups and scale exercises to piano practice and recording playback, you can start training anytime, anywhere. Clear pitch guidance, a visual piano keyboard, and flexible practice settings make every vocal session easier to follow and more structured. 【Structured Vocal Practice】 Choose a scale and customize the starting note, vocal range, interval step, tempo, note length, and piano sound. During playback, the current pitch and piano keyboard update in real time, helping you listen and sing along accurately. 【Custom Scales】 Create exercises tailored to your voice and training goals. Custom scales support octave shifts, rests, and extended notes, making them suitable for different skill levels and practice needs. 【My Warmup Library】 Save frequently used scales and practice settings as personal warmup routines. Start them instantly without configuring everything again, and easily edit or organize your saved routines. 【Free Play & Recording】 Rotate your iPhone to enter a two-octave free-play piano keyboard. Record a short practice session, play it back, and review your singing while you play. 【Useful Music Tools】 • Metronome: Supports multiple time signatures and rhythm patterns, with rotary tempo control and TAP tempo• Chord Transposer: Enter chords by tapping, transpose them in semitone steps, preview the sound, and copy the result• Relative Major & Minor: Use the circle of fifths to quickly explore major keys and their relative minor keys 【Two Interface Styles】 Switch between Classic and Cyber themes to match your environment and personal preference. 【Private Data & iCloud Sync】 No online account is required. Your warmup routines, custom scales, and settings are stored locally on your device and can sync between your Apple devices through your private iCloud database. 【One-Time Premium Unlock】 Premium features are available through a one-time purchase with no automatic renewal. Unlock additional custom scales, unlimited saved warmup routines, routine sharing and importing, TAP tempo, unlimited chord transposition, and a custom studio signature. Keep practicing, expand your range, and make steady progress. Wishing you a High C every day!