Anonymous wrote:There are sooooo many. My son can't go to school this year because of a health issue. We read a lot so that's not an issue but he likes math and would like him to keep up or get ahead. (second grader). Apps on other subjects welcomed as well.
A lot of schools are using ST Math which is subscription based but is year-long and actually teaches (in its own way) rather than just practice. It is subscription based but they have a homeschool option.
You could also try Zearn which is free and based on Eureka Math. Each lesson exactly follows the daily Eureka lesson so he would get the full curriculum. It's free you just need to create an account.