Select2 - Select2 offers customizable select box with support for searching, tagging, infinite scrolling, and many other used options.
GPS Status & Toolbox - Display your GPS and sensor data: Shows the position, number and signal strength of GPS satellites.
Materialize CSS - A modern responsive front-end framework based on Material Design
iHunter Alberta - iHunter Alberta is an amazing mobile application offered by Inside Outside Studio Inc.
Bulma - Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
Trail Sense - An Android app which uses your phone's sensors to assist with wilderness treks or survival situations.