Being charged on Venmo? To cancel your subscription, where it is nagging you to upgrade your subscription simply swipe right and you'll be able to see your current plan at which point you click on it you'll be brought to a page and in the smallest print imaginable is 'manage your account'. That was really good place to put it to be able to say it should be obvious. Almost as if you used a ui designer to find the best place to hide it.