Despite its loud anti-piracy notice, Andrey Fedotov's HackStore sees no issue in ripping off the official App Store's interface. Nevertheless, its aim is to gather up legit and readily available apps that didn't make it past Apple's trellis for whatever reason, and hopefully with Fedotov keeping an eye out for malware. You'll find FileZilla, Gimp and many rarer specimens -- and they're all just regular .dmg files so there's actually no hacking involved. That said, we downloaded the RTF to ePUB Converter and then struggled to make it run, so we're not ready to vouch for HackStore's ease-of-use any more than its security or legality. All we're saying, officer, is that it exists.