Extremely flexible - with a little creativity you can accomplish with just this app what you'd need several others to do - wholesale areas, customer-specific pricing, special access, etc. (Sinewave)
Locksmith is a Shopify storefront security app. It deals in locks, and keys – and no rules beyond that. Build whatever you like.
Our merchants include Tesla, Airbnb, Google, and Lyft.
If you have a Shopify storefront, you should be using Locksmith.