So you spend less than $20 to get the app, and then it's yours forever, at least, until the next major version if they decide to charge for it. The thing that sets pwSafe apart from others is the fact that it is a one-time purchase, and there are no in-app purchases after that.
Tired of subscription services but want a premium app that can handle more than a free option? Then pwSafe - Password Safe is the one you should try out.