Marketo - Marketo's powerful marketing automation software helps marketers master the art & science of digital marketing to engage customers and prospects.

Gazelle - Buy and Sell your used cell phones and electronics. Sell your iPhone, Samsung Galaxy, iPad and more for cash, or buy used iPhones, iPads and other cell phones. More than one million customers trust Gazelle.

Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.

Cashify - Cashify has earned a good fame and name in the field of used smartphones, tablets, and laptops.

ActiveCampaign - Integrated email marketing, marketing automation, and small business CRM. Send beautiful newsletters, setup behavioral based automations, and benefit from sales automation.

CashOn Pick - Cellular Country is not as greater used smartphones trading platforms as compared to others, but still, there are many factors that make it the best platform for getting used smartphones and also selling used or second-hand smartphones as well.