PolarBackend & Data

Polar takes over the unpleasant half of selling online: subscriptions, prices by usage, invoices and taxes in every country you sell into. It can act as the seller of record, handling the sale and the tax paperwork while you keep the money — otherwise you need a registered company and an accountant. Products and prices are set over the web and changes arrive as notifications, so your app always knows what someone has paid for. Doing this yourself is building a whole business, not adding a feature.