Contactless access to self-storage units doesn't need expensive electronic locks.

Rubik is an app that helps you manage combination padlocks in such a way that vacant and overdue units are always locked, you never forget a padlock's pin, and, most importantly, tenants get their unlock codes instantly when they paid their new move-in or overdue invoice.

You know it - padlocks are cheap. And so is Rubik: Compared to electronic locks, operators that use Rubik not only save 10x the ongoing cost but rid themselves of headaches with electronic locks, like server outages and electronic defects.