Music on Vine - Vine, now with music. Make 6-second music videos.

Typeeto - Use Mac’s keyboard to type on iPad, iPhone, Android, etc.

Storybeat - Storybeat app comes up with features to help you in changing the background music of your videos in a few simple steps to share your favorite moments with your social media friends.

Type2phone - Type2Phone: Use your Mac as keyboard for iOS devices

Wiggle - Make Awesome Selfie Music Videos

Mocha Keyboard - Mocha Keyboard is a leading Bluetooth keyboard application for iPad, iPhone, and iPod touch.