MutexBot is a shared resource manager, managed entirely in Slack.
MutexBot can be used to manage shared social media accounts, software licenses, developer environments, conference rooms, workstations and anything else that can be shared in an office environment.
FeedbackSpark's answer:
Range of powerful features designed specifically for digital product teams:
Abot for Slack - Trusted by over 1000 Slack teams ✅. Abot is a simple and highly configurable app for anonymous feedback messages and more. If you want to create a poll on Slack or use it as an anonymous suggestion box you just need to type a simple command.
Back Market - the refurbished (super) market
Surveys in Slack by Polly - The world's first fully immersive Slack-based survey product
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.
botwick - Build your own SMS-based text bot
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.