LockCube is a cloud-based secure backup program for keeping files saved and accessible anywhere. As with most security programs, it is difficult to test how secure the data is without someone attempting to access it. But the app, itself, is difficult enough to use that it's unlikely to be the first choice of those looking to safely store their data.
It takes a lot of work to sign onto LockCube, and the program warns you of almost none of it. Signing up for LockCube takes place online, not in the application, and involves many different steps that can take a significant amount of time to complete. LockCube doesn't guide you through the process and once you do sign into the app for the first time, LockCube doesn't guide you through its use, either. You cannot load data onto LockCube through the app, itself, so the app remains empty unless you sign into the program online. Even then, LockCube doesn't provide you with any tutorials to make sure that you're accessing the data correctly.
Once you load data into LockCube it's likely that the program keeps your data secure, but with no tutorials, no explanation of features, or next steps, and a sign-up process that takes place in a separate program rather than in the app, itself, LockCube is a hard sell for something as important as data security on a mobile device.