FeedbackSpark's answer:
Range of powerful features designed specifically for digital product teams:
ManyContacts - Create and install a Contact Form in minutes. Easily convert your website visitors into qualified leads. ManyContacts provides a FREE online contact form for conversion optimization.
Back Market - the refurbished (super) market
madkudu - We’re building a better knowledge base
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.
Mobbo - Mobbo provides analytical insights to benchmark, compare and optimize mobile apps,
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.