I bought Inbox on AppSumo in 2021 which is quite a while ago, and honestly, it’s one of the few tools that’s genuinely kept improving over time rather than disappearing into the usual startup graveyard.

The team have clearly continued developing it properly, and it now feels like a solid, reliable piece of software rather than an unfinished “coming soon” product.

What I like most is that it’s become more polished, more capable, and more useful the longer I’ve had it.

I’m actually surprised it’s still available on AppSumo. If the lifetime deal is still there and you think you’d use it, I’d seriously grab it while you can.

Definitely one of the better AppSumo purchases I’ve made.