Tuner · Baro
iOS app by Euiseok Kim. Music · Euiseok Kim
- Store rating
- 5 / 5
- Store rating count
- 2
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.2.15
- Listing last refreshed
- 2026-09-10
View the original store listing
Store description excerpt
Your audio never leaves your phone. Tuner is a chromatic tuner that listens through your microphone and tells you the exact note you're playing — entirely on your device. No internet, no account, no tracking. Don't trust it? Turn on airplane mode: turn off Wi-Fi and cellular, and it keeps working. Nothing is ever recorded, and nothing is ever uploaded. Play a string, press a key, or sing a note. A big, clear note name fills the center (like A4), with the live frequency in Hz and a smooth 180-degree needle that swings with every cent. The moment you land in tune, the whole note glows yellow — you tune by feel, not by squinting at numbers. WHY OMITTUNER IS DIFFERENT Most tuners pay their bills with ads, accounts, or tracking of mic-adjacent data — or gate real accuracy behind a monthly subscription. Tuner does neither. No ads. No subscriptions. No accounts. PRIVATE BY DESIGN • Microphone audio is analyzed in memory and discarded instantly — never written to disk, never uploaded. • Pitch detection runs 100% on device with pure-DSP YIN math. No machine-learning model, no cloud, nothing sent to any server. • Zero analytics, zero telemetry, zero third-party SDKs. Privacy label: Data Not Collected. WHAT IT DOES • Real-time pitch detection, fast enough to follow your tuning peg as you turn it. • A huge, readable note name plus the live frequency in Hz — legible across a music stand. • A 180-degree needle that leans flat or sharp, and glows when you're within 5 cents. • Adjustable concert-pitch reference — 432, 438, 440, 442, or 444 Hz, one tap, remembered next time. • The screen stays awake mid-session so you can keep both hands on the instrument. GREAT FOR Guitar, bass, ukulele, violin, cello, bağlama / saz and other strings; brass and woodwind intonation checks; singers and choirs warming up; piano reference checks; students and teachers in any room. HONEST ABOUT WHAT IT IS Tuner reads what your microphone hears using 12-tone equal temperament to within about 5 cents, across 25–4500 Hz. It's an excellent everyday and practice-room tuner — it isn't a studio strobe and doesn't claim that precision. NO SUBSCRIPTIONS, NO ADS No subscriptions, no in-app purchases, no ads. That's the whole deal. Part of the Baro family — The tools you reach for first.
Review coverage
AppRill has captured 0 reviews for this app. This is a collected sample, separate from the store rating count. Latest review capture: Not captured yet.
Recent captured chart positions
No chart positions have been captured for this app yet.
Chart position, rating count and review coverage do not establish downloads, revenue or profit. Understand the differences.