LinkedIn Learning - Online training through LinkedIn's professional network.
SmallDevTools - Handy developer tools with a delightful interface
AWS Certified Solutions Arch. - AWS Certified Solutions Arch App allows you to access an extensive collection of more than 320 exam questions so you can prepare yourself for AWS exams.
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
CompTIA Security+ Pocket Prep - CompTIA Security+ Pocket Prep app comes up with features to help users in creating customized practice tests so they can practice for their upcoming exams right through their mobile phones.
TextLab - TextLab is the fastest way to format, prettify, transform, hash, encode, and decode your data instantly!