Based on our record, Google Design Sprint Kit seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Also Google (as in the company not the verb) has a free version of their discovery techniques here https://designsprintkit.withgoogle.com/. Source: over 1 year ago
Dashboard UI Kit - A modern & responsive dashboard UI kit for designers.
Design Sprint Kits - A pre-assembled kit for GV design sprints.
Bots UI Kit - Fully customizable Sketch UI Kit for Messenger Platform
Design Principles - An open source repository of design principles and methods
Landing UI Kit - Handcrafted UI components for landing pages
Land Book - The homeland for fine websites