Callblock - The first app to block telemarketers automatically in iOS
Canned Emails - A minimal site with prewritten emails
Re:scam - I’m an AI chatbot created to send scammers a message.
analyze.email - Test the spam-y-ness of your emails
Scam Spotter by Google - With Google's help, we are spotting the most common patterns used by scammers and offering practical advice to help you stop them in their tracks.
Rename Email - Easily change the subject of any email, by cloudHQ