Pricing
Centerline pricing
As centerlinetuner.com lists them, read 29 Sept 2026. The maker's own page has the final word.
| Plan | Billed and limits | Price |
|---|---|---|
| Chromatic | Chromatic tuning, 62–800 Hz · four display views · Guitar mode and six Guitar views | Free |
| Centerline Complete | 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 | $3.99, paid once |