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Anima App - Design, get feedback, convert to code, publish, iterate.
Amplitude - Mobile analytics: come with questions, leave with answers
Sketch Repo - Collection of resources for anyone who uses Sketch
Heap - Analytics for web and iOS. Heap automatically captures every user action in your app and lets you measure it all. Clicks, taps, swipes, form submissions, page views, and more.
Git Sketch Plugin - Version control for designers