A440 Tuner by Ownly

Now free for a limited time. No subscriptions. No ads. No tracking. Just a fast, accurate guitar tuner inspired by real studio gear.

No subscriptions. No ads. No account. No personal data.

Just a clean, analog-inspired tuner that gets it right — every time.

A440 by Ownly delivers studio-grade tuning accuracy (±1 cent) through a responsive analog meter designed to feel like real hardware. Whether you're tuning guitar, bass, or other stringed instruments, it locks on quickly and clearly without noise, clutter, or distraction.

Features:

• Studio-grade accuracy (±1 cent)
• Selectable reference pitch (420–460 Hz, including 432 Hz)
• Adjustable mic gain for different environments and instruments
• Analog-inspired tuning meter with haptic calibration feedback
• Premium Space Gray and Classic Aluminum finishes
• Clean visibility in both light and dark mode
• No subscriptions. No ads. No distractions.

Buy once. Tune forever.

Notes:

• A440 by Ownly is optimized for guitar, bass, and other standard-range stringed instruments.
• The tuner performs accurately across the full chromatic scale but may show brief movement during the initial attack of highly percussive instruments such as piano or drums. This behavior is normal and reflects the harmonic complexity of those instruments.
• Designed for simplicity, precision, and reliability rather than multi-instrument or polyphonic analysis.
• Minimal anonymous usage analytics may be collected to help improve reliability and performance. No personal or identifying information is ever stored or shared.