Pushbullet - Pushbullet - Your devices working better together
KeywordTool.io - KeywordTool.io is the best FREE alternative to Google Keyword Planner and Ubersuggest. It uses Google's autocomplete feature to get over 750+ long-tail keywords for any given query.
Pushover - Real-time notifications on your Android, iPhone, iPad, and Desktop
Google Trends - Explore Google trending search topics with Google Trends.
Gotify - a simple self-hosted server for sending and receiving messages
Keywords Everywhere - Free browser add-on for keyword volume, CPC & competition