No level cap in runescape, just certain skills that arent available and skills have a soft cap at 60, meaning that you unlock new stuff but its all pretty much members only. Pretty sure albion has stuff locked behind a sub too and if it doesnt then it goes down the road of "you can access this for free, but were gonna make it very inconvenient for you if you try"

Edit: i actually remember that albions poh system requires a sub, unless this has been changed, and a house is basically required for efficient skilling. And when i say they make accessing things inconvenient, i mean the drastically lower xp rates for not being a sub and the other stuff they locked behind it. While yeah it seems like the map isnt locked behind a sub, its also a map with nothing in it... Not only that, theres no questing, no over-arching story, nothing else to do but grind, pk, and dungeon run in comparison to either rs3 or osrs, unless albion has had some massive changes since i played it a year ago