I've moved my passwords to bitwarden due to this. In the long run, it seems like the cheapest place and yes, I pay for it. I think Enpass is a great solution, the business management is just really messed up.
I do hope you'll fix your business model at some point. We all want you to succeed, we all want to move on from this blemish.
On the other hand, the removal of the mobile banner has taken over 3 months already. As a software developer myself, it's clear this has 0 priority. Having an option to hide it would take me less than a day. Including review in iOS and Android, it would've taken a couple of days at best.
Point is. I'm just really sad that a product I've actively promoted is going this route. In the last couple of months, I compare this to freemake. A product that has featureset x, you pay for it as a lifetime subscription.. Then it has feautreset x+y, It's also a lifetime subscription, but y is excluded from the previous subscription. Their lifetime subscription keeps expanding, but never does it include the new options. It's not a way to run a business. Either be honest and kill of lifetime subscriptions and honor the ones you have (like malwarebytes) or be honest and offer a great deal to your current lifetime subscribers explaining that new features aren't feasible. And no, a 50 cent discount on a year subscription does not count as that. The subscription you're offering is even more expensive compared to the new lifetime subscription you offered for the new premium subscription for $25.
Again, I have promoted Enpass in the past, I like the product, I just hate the business model you're going for and due to that, I have to actively send people away from the product. The reason I post this is because I care way more than I should. Most people will just cut their losses and move on.