The maintainer sold it off to a company called ZipoApps. Here’s the Github thread about it.

ZipoApps seems to be a company who buys mobile apps to monetize (or further monetize) them. As per their website, their mission is “to find, evaluate, purchase and grow mobile apps”. I suspect the only growth we’ll see with the Simple Mobile suite is the growth of ad-revenue lining this company’s pockets.