Novocall - Novocall converts web visitors into sales calls in seconds.
Poptin - Create engaging and high converting website pop ups and contact forms in minutes. With Poptin, you get access to a feature-packed conversion rate optimization toolkit that converts more website visitors into email subscribers, leads, and customers.
OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
VYPER - VYPR provides lead generation and capture tools.
Callpage - Turn website visitors into sales calls. Use CallPage and provide immediate free phone callback to your leads in 28 seconds.
Little Widgets - HTML, CSS Framework with beautifully designed website widgets, popups, and forms.