[flytram]

I have a free drop box account and use it to store kdb file. What is a better alternate if I want to access to kdb file from more than 3 devices (combination of windows + ios devices.)

[mintplant]

OneDrive, if you don't want to self-host. I switched from Dropbox when they added the device limit.

[ProNeo]

Syncthing

[flytram]

I did read the other comment about syncthing; but that requires setting up a server. Do not want to go that route.. :)

[trulyrandom]

Syncthing does not require setting up a server. Your devices connect to each other directly, or through a relay if that's not possible.

[flytram]

Thanks.. Will give a try...