Like the two ends of a cable, without the cable

iTwin is Plug'n'Play. Plug one half into an online computer, plug the other half into any other online computer & the two computers are connected.

View, copy, edit and upload files to and from your remote computer. Data in transit is protected by robust AES-256 encryption. No storage limit.

If you lose one half of iTwin, you can remotely disable that half. Your data resides on your computer, not on someone else's cloud server.