Solo - Personal kanban boards hosted on your own server

Whimsical - The visual workspace for teams.

Cash App - The easy way to send, spend, bank, and invest.

Jot - The no-fuss way to take notes

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

iTunes - Media player, media library, Internet radio broadcaster, and iPhone device management application