Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Zeplin - Collaboration app for UI designers & frontend developers
Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.
Mightytext - Send & Receive SMS Text Messages from your computer. Sync'd with your Android #
Google Forms - Simple web forms from Google.
Abstract - A secure, version-controlled hub for your design files