For people downvoting the above, read some criticisms the app such as:

https://micahflee.com/unfortunately-the-iceblock-app-is-activism-theater/

I don’t know of the take-down legit but the security of the app has been questioned, too.

Edit: The removal was bullshit. Apple should be pressured to put it back. But, the developer or someone else could do much better.