This app was mentioned in 5 comments, with an average of 1.60 upvotes
If you're on android use this app: https://play.google.com/store/apps/details?id=com.dexitcompany.mcpeworldbackup
Link your dropbox account to it and you're able to upload directly to dropbox :)
The app will compress it, share the file here with us and done!
I use this app to easily switch between tablet and phone. It can use Google Drive and Dropbox.
The Drive backup is invisible but the Dropbox one probably isn't, haven't tried that but it might work :)
https://play.google.com/store/apps/details?id=com.dexitcompany.mcpeworldbackup
It's to late for now but i use this app:
https://play.google.com/store/apps/details?id=com.dexitcompany.mcpeworldbackup
It can sync to dropbox and google drive and it's possible to let the app remind you to backup your world(s)
I play with my tablet and phone and this saves lots of trouble with switching files.
I totally forgot to put the link to the app.. sorry!
https://play.google.com/store/apps/details?id=com.dexitcompany.mcpeworldbackup
Afaik if you choose google, it will backup the data to a hidden appdata folder.. but dropbox will be visible so that might be the easiest option to pick.
And you mean that if you have MC:PE and MC:VR you can play the same world without switching files? Awesome!
For android I use this: https://play.google.com/store/apps/details?id=com.dexitcompany.mcpeworldbackup