AppSumo

AppSumo is the largest marketplace for so-called lifetime deals — lifetime licenses for business software. It was founded in 2010 by entrepreneur Noah Kagan in Austin, Texas, and today millions of entrepreneurs, freelancers, and marketers use it to put together their software stack without a pile of monthly subscriptions.

It works simply: instead of paying for a tool month after month, you buy its lifetime license on AppSumo in a single payment. The selection keeps changing — new deals arrive every week, and most come with a money-back guarantee, so you can first check a tool out calmly in real use. Deals typically come from younger companies that use AppSumo to reach their first big wave of users.