Tippr revolutionizes Bitcoin tipping by allowing people to tip anyone, even if they don't already have a Bitcoin wallet or social account. Similar to Changetip, Tippr sends recepients a notification when they've been tipped. To tip someone with Tippr, visit their website and click on the Tippr Chrome extension. Tippr generates a Bitcoin address for the website owner and emails them instructions on how to access it by querying a WHOIS database to find their email. If the website owner doesn't accept the tip within a week, the tip is returned to the sender. IMPORTANT: Tippr is open source software. If you paid for this software, demand a refund! Visit the Tippr website for a link to the Github repo.