You can watch the animated movie The Croods on Netflix, including both the standard and ad-supported plans

. It is also available for purchase or rental on platforms like Apple TV, Google Play Movies, Amazon Video, Fandango At Home, and Microsoft Store

. Note that on Prime Video, The Croods is currently unavailable due to expired rights

. So, the best option for streaming is Netflix, while buying or renting digitally is possible through several other services.