CloudSight - Image recognition API; send an HTTP request with an image, get a description of contents.
BlockSurvey - Privacy-focused surveys, polls & forms
Dashmote - Dashmote bundles stock image providers to make finding stock images as easy as possible.
Slack Surveys by Standuply - A simple, powerful bot for recurring surveys on Slack 📝
YOLO - Real-time object detection
Simple Poll - The easiest way to create polls in Slack