Tiny Keys vs PianoKeys Learn

Tiny Keys is a minimal iPhone piano keyboard for quick melody checking by ear. It opens straight to a playable keyboard, keeps the interface focused on the keys, and plays over Apple Music, Spotify, and other audio already playing on your device. Features: Play notes without interrupting background music Fast on-screen keyboard with multitouch chords Glissando-style playing by dragging across keys Thin navigation strip to move across a wider range Choose 1, 1.5, or 2 visible octaves Piano, sine, triangle, and square sounds Portrait or landscape app orientation Independent keyboard direction settings No login, no ads, no subscriptions

PianoKeys is an offline piano and chord-study tool built for learners who value precision, speed, and clean design. SYNTHESIZED AUDIO ENGINE PianoKeys uses a custom AVAudioEngine-based synthesizer with 8-voice polyphony and exponential decay envelopes. Every note is generated on-device in real time — no audio samples, no network dependency, zero latency. COMPLETE CHORD LIBRARY 21 chords across three categories: - 7 Major triads (C, D, E, F, G, A, B) - 7 Minor triads (Cm, Dm, Em, Fm, Gm, Am, Bm) - 7 Dominant 7th chords (C7, D7, E7, F7, G7, A7, B7) Each chord card shows the chord symbol and full name, plays all intervals simultaneously, and highlights the constituent keys on the keyboard display. PIANO KEYBOARD Scrollable 2-octave keyboard spanning C2–C5. White and black keys respond to touch with spring animation and haptic feedback. Pressed keys are highlighted with accent color in real time. PRACTICE ANALYTICS - Daily session count - All-time total plays - Top 5 most-played chords by frequency All data is persisted via UserDefaults — no account, no server, no tracking. TECHNICAL SPECIFICATIONS - Platform: iOS 16+, iPhone Only - Audio: AVAudioEngine, 44100 Hz, 8-voice polyphony - Localization: English, Simplified Chinese - Storage: UserDefaults (local only) - Network: None required Delete the app to permanently remove all practice data.