ZeroRank Rocks
I bought two similar lifetime deals (LTDs) that promised the same things as ZeroRank, but I lost my money; in one case, development stopped, and in the other, the tool simply stagnated in its initial development phase.

I then looked for non-LTD options, but they turned out to be too expensive for the agency-level features offered on a monthly basis, with very little openness to improving the product or its white-label capabilities.

After searching, I found ZeroRank here on AppSumo. I’ve been able to review its features and the team's openness to user feedback, not to mention the competitive pricing that includes white-label functionality. To be honest, it’s on par with the other white-label option I considered—which wanted to charge a premium and showed no flexibility regarding feedback for improvements.

I hope they continue to improve the product for agencies; I see a bright future for it. In fact, I’m already integrating it into my agency’s service portfolio—something I don’t often do with LTD products until they’ve had time to mature.

Cheers, Kelvin! Five tacos!!!!