Description: Code.org is a nonprofit dedicated to expanding access to computer science in schools and increasing participation by women and underrepresented minorities. Their free online curriculum and lessons help teach students coding and computer science fundamentals.
Type: software
Description: CSipSimple is an open source SIP client for Android that allows you to make VoIP calls over Wi-Fi or mobile data. It supports common SIP features like call transfer, call forwarding, call waiting, 3-way conferencing, etc.
Type: software
Pricing: Open Source