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: about 1 year ago
Revenue River - We help organizations compete and win online with digital marketing and sales innovation strategy and execution.
Design Sprint Kits - A pre-assembled kit for GV design sprints.
Net Solutions - Net Solutions: Where innovation meets expertise. Award-winning digital solutions built for growth.
Design Principles - An open source repository of design principles and methods
LeadMD - LeadMD is the revenue performance consultancy that cuts through the BS by making your vision actionable and your outcomes measureable
Sprint - How to solve big problems and test new ideas in 5 days