SaaSiter Contacts Importer - Allow users to import contacts into their system.
MyBrocard - Brocard allows you to create an unlimited number of virtual cards for paying for advertising and other online payments, manage a team of buyers, choose from 20+ bins for various tasks, and enjoy convenient API for integrations.
OpenInviter - OpenInviter is a free import contacts (addressbook) script from email providers like Mail2World...
PST.NET - Virtual payment cards for online shopping and advertising
AdiInviter Pro - The ultimate contacts importer and tell-a-friend system for your website.
Coinramp - The Coinramp Card lets you spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards