Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.

FileWhopper - Share large files or folders of ANY SIZE online easily and securely. Your files are encrypted & password-protected. Download while still uploading. No monthly subscription or storage to buy, just a one-time fee based on file size.

FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts

NordLocker - Keeping files in the cloud? Protect them with leading-edge encryption. NordLocker makes file security easy.

Nextcloud Contacts - The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server.

Send.cm - Send files, one time download links, unlimited download, unlimited upload, ads free.