YouTube Kids - YouTube for the youngins on iOS and Android
Refined GitHub - Browser extension that makes GitHub cleaner & more powerful
Hopster TV - Netflix for kids
GitZip - Download or create a download link for a GitHub project folder/sub-folder or file.
KidsBeeTV - Safe Cartoon App for children. Watch popular kids shows Polly Pocket & Pinkfong; Lingokids learning videos & fun cartoons such Om Nom.
GitHub Hovercard - GitHub Hovercard provides neat hovercards for GitHub.