Endless A vs Tuner Pro

A concert A, whenever you need one. Endless A-440 plays a sustained 440 Hz reference tone for tuning instruments. Choose piano, violin, French horn, or a pure sine wave. Tap an instrument to start, switch sounds with a tap, and tap again or use Stop playback to finish. • Four bundled reference sounds • A clear playing indicator and dedicated stop button • Light and dark appearances for iPhone and iPad • An optional original 2015 design • Works offline, with no account, ads, or microphone access This is a reference-tone player. It does not listen to your instrument or measure its pitch.

Tuner Pro — Precision and Simplicity in Music Tuning. This app turns your phone into a reliable tuning fork and a handy metronome. Just open it, select your desired frequency or rhythm, and start playing. FREE FEATURES: • Tuning Fork in Your Pocket: A pure, classic tuning fork sound for tuning vocals and instruments. • Standard Tuning: Accurate A440 Hz frequency always available. • Simple Interface: Intuitive controls and a minimalist design. • Day and Night Modes: Comfortable to use in any lighting condition. TUNER PRO (Subscription or Lifetime): Unlock the full power of the app with these professional tools: • Professional Metronome: A range of 20–240 BPM with support for various time signatures (2/4, 3/4, 4/4, 6/8). • Extended Frequencies: Access popular historical and alternative frequencies like A415 Hz, A432 Hz, and A444 Hz. • Color Themes: Customize the look of your tuner to match your style. WHO IS THIS APP FOR? - Vocalists who need a quick and reliable tuning fork. - Musicians tuning their instruments before a rehearsal or concert. - Students of music schools and conservatories. - Anyone who values precision and convenience in music. WHY TUNER PRO? - No internet required. - Does not collect personal data. - Runs fast and stable on any device. - Simply Tuner combines tradition with modernity — a classic tuning fork and a digital metronome, always at your fingertips.