Description: OpenSignal is a free app that allows users to map cellular, Wi-Fi, and other signals in their area. It crowdsources data from users' devices to build maps showing the coverage and performance of various networks.
Type: software
Description: PHP App Server is an open-source software that allows you to run PHP applications and websites locally on your computer for development and testing purposes. It bundles PHP, a web server, MySQL and other components into an easy-to-use package.
Type: software
Pricing: Open Source