Proton has a free tier, if that helps make it more clear. Though I'm not sure that free vs. paid is such a distinguishing characteristic that makes it impossibl

Proton has a free tier, if that helps make it more clear. Though I'm not sure that free vs. paid is such a distinguishing characteristic that makes it impossible to compare. If I give you some blueberries and you buy some from the store, you're still able to compare and contrast the two and the paid blueberries may actually be inferior to the free berries.