Sampulator - Make (and record) beats on your keyboard

Kin - Kin is money for the digital world. It is used to generate value through a shared, decentralized cryptocurrency in a digital ecosystem of apps and their users.

Tinkersynth - Create and purchase unique generative art

Flexibits - Makers of Cardhop, Chatology, and Fantastical.

Splice Beat Maker - Make and share beats in your browser

Windows Contacts - Windows has many extraordinary organizers, and in the event that you include distributed storage, then you presumably have more.