Microtransactions in Echo VR are summarized as...
Echo VR follows a fairly standard free-to-play model. Expensive cosmetics that can only be acquired with premium currencies which can only be purchased in awkward quantities. There is an ever rotating shop with a 2 week timer, after which a new set of items are placed in the shop and the old may or may not return at a later date.
The game features a battle pass which includes some free items but most items require you to purchase the premium battle pass. The battle pass lasts about 3 months, after which the pass expires and you will no longer be able to access any of the items you didn't manage to get.