Onedrive syncing with multiple computers

Hello.

You don't have to install Dropbox app, so the limit is not applicable. The only thing you need is Dropbox account, you even don't have to tell account details to other people.

And you can put your file in OneDrive and work with it from several devices simultaneously. Read the instruction carefully.

Well I tried that, I downloaded pfd file with active Dropbox synchronisation, to my Android phone. I don't have Dropbox installed on it. Then I opened it with with Alzex app and checked if synchronisation is active. and it isn't. When I manually confirm active synchronisation in the app, it transfers me to Dropbox page, where I confirm access. But after a minute, automatic synchronisation is disabled again in the Alzex app.