Yes! Part of it, at least. The Sandbox Evolution is freemium. You can download and play it without ever paying if you want.  All basic features are available for all players: you can create your own worlds and share them. You can complete missions and play worlds made by other players.

We do offer a Premium Subscription, that gives you access to extra Elements, special Create Modes, and some other Premium features.

Players without subscriptions can still play levels with Premium elements, made by Premium players.

If you want to disable in-app purchases, please follow the steps from this ticket: 

https://thesandbox.helpshift.com/a/the-sandbox-2/?s=billing&f=how-can-i-avoid-unwanted-in-app-purchases