iPhone Screenshots


Tuner, PDF Viewer, Pitch pipe, Metronome, and more! A.P.S. MusicMaster, an “all-in-one” musician’s tool, presented by the C.L. Barnhouse Co. & developed by A.P.S. Development LLC.

A.P.S. MusicMaster includes a PDF Viewer & Annotator with pass-through audio support and import from dropbox.com and e-mail abilities, chromatic tuner with audible pitch-pipe and adjustable calibration, simple and accurate metronome with savable presets, PAS percussion rudiments, instrumental fingerings and positions, music theory materials, common transpositions and ranges listings, built-in audio recorder and player with export via e-mail and the ability to play items directly from the internal music library, as well as extensive glossary items.

In this age of mobile technology, shouldn’t every musician have a PDF viewer with the ability to highlight and markup their music or any other document? Shouldn’t that PDF viewer come with a tuner, metronome, audio recorder, audio playback, and other useful tools right at the fingertips? The highly portable A.P.S. MusicMaster application does all of this and much more!

The A.P.S. MusicMaster app brings this All-IN-ONE Tool to any musician in a convenient, easy-to-use format at a great price. Whether you are a conductor, performing musician, music educator or a student, you will find the A.P.S. MusicMaster to be your most valuable and favorite electronic tool!

What's New

Version 2.0.0

Fixed iOS 7/8 issues
Tweaked Metronome Accuracy
Tweaked Audio Support for playing audio file while viewing a PDF

Customer Reviews

3.6 out of 5

7 Ratings

7 Ratings

Not working


When I had my first iPhone, I always used this app for my classes. It has just about everything I’d need for classes. However, when I got my new iPhone & tried installing it, it said it doesn’t work on the current iOS. Please fix this so we can have a wonderful app yet again!

Please update

Scrabble hound 2

I used this every day. Please update.

Please update to iOS 11


I used this daily in my teaching, now it doesn’t work, please update


A.P.S. Development L.L.C.
18.3 MB
Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2011-2014 A.P.S. Development LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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