Quill - Powerful, API-driven rich text editor
ShoutOUT - Connect with your customers via SMS, Email, WhatsApp & Messenger
Guitar Pro 7 - Create, play and share your tabs
ProTexting - ProTexting offers mobile marketing tools for businesses to communicate with their audience via SMS & MMS campaigns.
oTuner - oTuner is a Free, Open Source Chromatic Tuner for Windows and Windows Mobile (or Pocket PC).
Clickatell - Simple, reliable mobile messaging cloud.