Some useful apps for your devices:

Please note, Pacific Sound and the Barbershop Harmony Society are not affiliated with any of these apps or their developers.  We do not provide technical support nor guarantee any results, nor even guarantee the links or apps still exist.  (they all did as of 4/24/2018)  We've just had various members find them useful, and so we're passing the information along to you.  With that in mind, and in no particular order...

 

Tonal Energy (AKA TE Tuner) iOS or Android **NOTE** This is the app Courtney recommended EVERY member put on their phone, and Royce reinforced that recommendation	Helps musicians to improve sound quality and intonation. Tuning, volume, articulation, release, duration, and steadiness are the key elements of developing a beautiful tone quality. TonalEnergy Tuner is the first multi-purpose application that allows users of all ages to understand and improve every aspect of their sound.
A capella iOS or Android (beta)	Record, edit and share original music all from your mobile device. Sing, play and collaborate with up to nine instruments or musicians. Record multiple users’ audio and video tracks, and sync them to create one unique track Optimize sound with EQ, a noise gate and processor.
AnyTune iOS, Mac, Windows, Android	Change pitch or speed of any MP3 - particularly useful for fast-moving learning tracks...
The Amazing Slow Downer iOS, Mac, Windows, Android	Change pitch or speed of any MP3 - particularly useful for fast-moving learning tracks...
Voxercise iOS and Android	Vocal Warmups, register blending exercises. Free demo with in-app purchases.
Harmonize - Just Intonation iOS or Android	Learn to have perfect and relative pitch
InTune iOS only	Test and improve pitch discrimination
Tag Master iOS or Android	Tags, tags, and more tags!
What’s My Note? iOS or Android	Import or take photo of sheet music, then touch a note to hear its pitch
ForScore iPad only	Sheet Music Reader
Drawboard PDF Windows 10 only	PDF Reader for Win10.  Integrates with the "pen" of a Microsoft Surface (and I assume other integrated pens) to allow you to write directly on the PDF.  It was designed for drafters and architects, but it works very well for sheet music.
UCLA Music Theory iOS and Android	Learn music theory with the tools provided to UCLA students
Barberchords iPad only	Find and tune chords for your arrangement Note: This requires some heavy knowledge of music theory – it’ll ask you for the name of the chord you’re trying to tune, and the name of the chord you’re moving to next.  It will then provide you options for what note each part could be on, and how those parts should tune those notes.  Very cool for advanced users, but not recommended unless you are one.