Learn SpriteKit by Design+Code - Make a platformer iPhone game from scratch in Swift 4.
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
PSD to Sketch Design Converter - Convert a Photoshop design to a layered Sketch file for free
X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Visily - The easiest and most powerful wireframe software for agile teams.
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!