CloudSponge is described as 'The CloudSponge Contact Picker imports all the major address books. Websites use our product so that users don’t have to type email addresses into their word-of-mouth sharing feature to send an invitation, greeting card, or coupon' and is an app in the development category. There are four alternatives to CloudSponge for Web-based, Android, F-Droid and SaaS. The best CloudSponge alternative is Contacts Import, which is both free and Open Source. Other great apps like CloudSponge are OpenInviter, Super Tell A Friend PRO and SocialInviter.
Import your CSV contacts from your favourite desktop client without any cloud syncing. Multi-language fully supported including all common localised codepages (from US & Westen Europe to Eastern Europe to China and Japan) and also UTF, so you get your contact information...
OpenInviter is a free import contacts (addressbook) script from email providers like Mail2World, Azet, Mail.in, Uk2, Mynet.com, Clevergo, Aussiemail, Pochta, Nz11, Apropo, O2, AOL, KataMail, Canoe, Bigstring, Wp.pt, Freemail, Yahoo!
Super Tell A Friend is a powerful script that lets you implement word of mouth marketing campaigns directly on your website.
Social inviter enables your user to import contacts, import friends, send message to friends, fetches user profile and post content to social networks in clicks.
