So far, the game is free from in-game advertisements. IAPs offer exclusive items and speed-up bonuses for those who don't want to wait around. To construct buildings or harvest resources, you drag and drop a pet onto the relevant building and wait until the timer runs out.
In terms of play experience, it's a standard idle game. But you can still experience taking care of Neopets, designing your own space, and exploring the island of Dacardia. Island Builders is an idle game that simply takes place in Neopia. If you want to focus on taking care of a Neopet, you might be better off playing one of the many virtual pet games available on mobile.
However, if you’re considering trying it out, you should know that Island Builders is not an extension of the beta.
While iOS users need an invite to access this app in closed beta, Android users can download Neopets: Island Builders as an early release.