Flickr - image and video hosting website
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
tawk.to - tawk.to is a free live chat app that lets you monitor and chat with visitors on your website or from a free customizable page
Google Photos - All your photos are backed up safely, organized and labeled automatically, so you can find them fast, and share them how you like.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.