FeedbackSpark's answer:
Range of powerful features designed specifically for digital product teams:
Lookback - See how people really use your app
Back Market - the refurbished (super) market
Ethnio - Ethnio lets businesses create a screener and schedule participants for research.
Tracksuit - Beautiful, always-on, and radically affordable brand tracking for modern consumer brands. Tracksuit is the new way to measure, understand and communicate the value of brand.
UserCrowd - UserCrowd helps you to collect feedback and ideas from your users.
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.