No – members cannot choose their own contribution amount. They pay exactly the price of the plan they select: no more and no less. Plan prices are set by the publisher.
Want to give more as a member? Choose a higher plan if the publication offers several.
Tip for publishers: Offer several plans at different price levels so your supporters can decide how much to give. See “How to set plan prices”.
Want to support just once instead of recurring? Here’s how.