Centerline pricing

2 plans on the record · a free plan

Every plan

Free

Chromatic tuning, 62–800 Hz · four display views · Guitar mode and six Guitar views

Read 29 Sep 2026 · centerlinetuner.com

$3.99 one-time

One-time purchase; App Store price shown as $3.99

Drop D, Half step down, D standard, DADGAD, Open G · custom six-string tunings · capo settings · A4 calibration (432–446 Hz) · reference tones

Read 29 Sep 2026 · apps.apple.com