About this app
Violin Tuner is a tool for tuning musical instrument violin. It * listens to instrument sound with your iPhone microphone and measures the sound frequency * produces sample reference sounds when touching the strings on screen * gives directives like TIGHTEN and LOOSEN to find the right tune * informs before breaking the string * supports both select string and auto select modes
Latest release
What’s New
personal amplifier and recorder, GUI improvements, iOS 16 compatibility
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 16, 2026 · 9:08 PM $2.99