Profile Hopper - Chrome Extension to Growth Hack LinkedIn
Wheel of Popups - Interactive exit-intent website popup for lead generation
Sheety - Turn any Google sheet into an API instantly, for free. Power websites, apps, or whatever you like, all from a spreadsheet. Changes to your spreadsheet update your API in realtime. Neat
Magic Popup by Frontender - Convert visitors Into email list subscribers
Sheetsu - Turn Google Spreadsheet into API
Free Popup Builder - Popup Builder is a completely free tool that helps you create high converting, promotional and informative popups, increase conversion rates and boost sales.