FastSpring is a merchant-of-record ecommerce platform for software, SaaS, games, and digital products. It processes payments, manages subscriptions, and handles sales tax and VAT in 200+ regions.

Global payments - Accept cards and local methods in 35+ currencies with checkout localized in 21+ languages.
Subscriptions and billing - Run trials, renewals, and flexible recurring plans for digital goods.
Tax compliance - Let FastSpring calculate, collect, and remit VAT and sales tax as the seller of record.
Checkout and quotes - Use branded checkout, digital invoicing, and interactive quotes with e-signatures.

It is used by software and game sellers that want one vendor for billing, tax, fraud screening, and reporting.