FeedbackSpark's answer:
Range of powerful features designed specifically for digital product teams:
TinyPNG - Make your website faster and save bandwidth. TinyPNG optimizes your PNG images by 50-80% while preserving full transparency!
Back Market - the refurbished (super) market
Optimus.io - Lossless image optimization
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.
OptiMole - Optimole makes your images weigh even 80% less while looking just as good!
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.