Balto - Easy feedback with screenshot / videos for your beta apps
AskNicely - Collect customer experience feedback on a daily basis and empower your team to take immediate action to drive retention, upgrades, reviews and referrals.
buddybuild - Buddybuild ties together continuous integration, continuous delivery and an iterative feedback solution into a single, seamless system. With buddybuild, you can focus on what matters most: creating awesome apps.
Delighted - The fastest and easiest way to gather actionable feedback from your customers
Twitter Audience Insights - Loads of info about your followers, their interests, & more
Survicate - Collect feedback on your website and find out more about your visitors.