Update 5/1/2019. We've had a second look at the world to see if the activities are being updated. They are. The following review was written in September 2018.

Beautiful, well designed activities feature Eric Carle's Hungry Caterpillar art work, in this subscription model full of activities covering math, spelling, reading, writing, science, nature studies & creative arts. You get a lot of content at first, but watch out for the opt out subscription model. The app store reviews tell the story of plenty of surprised parents who forget to stop the seven day free trial, and end up paying for an entire year. Content is refreshed each month. As of Fall 2018 sections include Shapes and Colors, ABCs, 123s, Art (with paint or cut out collages, Eric Carle style); and a set of ebooks, songs and videos with featuring themes of nature, science & art.

Hungry Caterpillar Play School is a subscription service. https://storytoys.com/terms-hcps/