There are a few plugins for WordPress that give SaaS capabilities fairly quickly. For more custom development, SaaS starter kits & platforms I've used: * WordP

There are a few plugins for WordPress that give SaaS capabilities fairly quickly. For more custom development, SaaS starter kits & platforms I've used: * WordPress - https://restrictcontentpro.com https://restrictcontentpro.com, https://www.paidmembershipspro.com https://www.paidmembershipspro.com * PHP - https://spark.laravel.com https://spark.laravel.com * Ruby - https://bullettrain.co https://bullettrain.co * .NET - https://aspnetzero.com https://aspnetzero.com * APIs - https://www.chargify.com https://www.chargify.com, https://recurly.com https://recurly.com, https://www.chargebee.com https://www.chargebee.com