IMO if you do an unlimited plan it is generally wise to caveat it with a fair use agreement. You can word those in different ways, but if you really look at al

IMO if you do an unlimited plan it is generally wise to caveat it with a fair use agreement. You can word those in different ways, but if you really look at almost every successful SaaS out there you will noticed they all do this in some way. This stops a few clients from abusing you and allowing you to increase their pricing based on some factor. 2 other points: An unlimited plan that is losing money is never good. Just because startups backed by VC money can loose money for a few years while building scale does not mean it is ok for the bootstrapped business to do the same. Depending on your situation and opinions it will vary. The other point is that while A/B testing can be overused and useless if done wrong, this is one of those places where it really does make a positive difference. It will complicate (increase) your number of subscription plans, but it will let you test and hone in on the right mix of pricing without alienating existing users.