Really a must-have: this chromatic banjo tuner is very fast, accurate and recognizes all strings using the built-in mic! Easy and perfect fine-tuning for all 4-, 5- and 6-strings banjo types ... This app is developed by a musician and electrical engineer, thus it combines high usability and cutting-edge signal processing. Simple Banjo Tuner is easy to use and provides an aesthetic and customizable user interface. Features: + Default banjo: G4-D3-G3-B3-D4 tuning + Tone accuracy: +/- 1.0 cents + Large frequency range (22 Hz to 1000 Hz). + Gauge view of the detected tone (semitone) and octave. + Tuning by ear. + Detailed user manual. + Free user support. + Developed for the iPhone and iPad. In-App-Purchase: + Extension for all kinds of banjos and tunings (Tenor, Open G, Double C, Sawmill, etc.) + Calibration: 430 – 480 Hz (1 Hz-steps) + Display of exact frequency (in Hz) + Display of frequency deviation (in Hz, marked by up/down arrow) + Spectral view (FFT – visualization of overtones) + Time-domain view (amplitude) + Configurable user interface (color picker) ------------- MORE: In the case that you experience crashes (or other inconveniences) with this app, please contact me (before you give a low rating to this app) - you may use the following contact form: http://www.simpleukuleletuner.com/support.html where you can describe the issue. Thanks in advance!