TuneHertz
This app is very fast, sensitive and recognizes all strings using the built-in mic.
Minimalistic indicator recognizes which the nearest pitch you have and suggests going high or low.
It follows any pitch your instrument can make and any pitch your device can detect.
It automatically hears which string you are tuning and indicates when string is tuned correctly.
It changes theme to the Dark mode. Better to use in dark places and rooms.
Supports MacOS & iOS devices