App Description

Improve your ear for tuning and intonation with this beautiful app.

• Improve your musical intonation — one of the most important skills a musician can have.
• Leverage 25 years of academic research on how to train intonation.
• Track your progress and compete on Game Center.
• Choose studio-quality instrument sounds, including piano, guitar, violin, cello, clarinet, banjo, flute, French horn, trombone, and trumpet.


“A brilliantly simple game of precision hearing…ingenious. It will absolutely help you develop a more discerning ear.”
— Voice Council Magazine

“Very easy to use…a fun and useful addition to your practice toolbox.”
— Horn World

“There are a number of ear training apps available for the iPhone, but InTune has actual science to back it up.”
— discchord

“I have your app on my phone and love it!!!”
— David P. Schurger, orchestra director, Indiana

“’s made a remarkable difference this past year in my ability to rehearse complex 20th and 21st century music!”
— Paul Piazza, conductor/composer, LA


InTune began as a way for researchers to test pitch discrimination, the ability to differentiate pitches that are close together. But then researchers discovered that musicians improved the more often they played – 3x faster than those who didn’t. Download InTune and see if it works for you!


We’re always improving InTune and love hearing from users. Please send your comments and requests to [email protected]

iPhone Screenshots

(click to enlarge)

InTune Pro – Tuning Practice screenshot 1 InTune Pro – Tuning Practice screenshot 2 InTune Pro – Tuning Practice screenshot 3 InTune Pro – Tuning Practice screenshot 4 InTune Pro – Tuning Practice screenshot 5

App Changes

  • April 03, 2021 Initial release
  • April 06, 2021 Price decrease: $9.99 -> $4.99

Other Apps From Half Note Labs LLC

Composer of the Day InTune – Intonation Trainer