I am completely disoriented by the alternatives offered:
AWS from Amazon
Dropbox Api( but the api v2 is not good documented imo)
google app engine
SyncAdapters with a REST API created by me on an hosting site
My question is really easy, what is the simplest and free way to achieve my aim of sync all the data trough different devices, without a gui that ask me to do oauth2 authorization, but just an account to set the first time and then all the process should work in background? It looks as a trivial question but paradoxically because all these alternatives I cannot find a tutorial well explained
I cannot find good examples on the internet. It looks to me that every documentation is quite bad
Tim Moores wrote:So you're looking for an online data store that acts as backup to the data your app stores locally on the device, and which also facilitates syncing across multiple app instances, possibly supporting different users, each with their own data?
mainly syncing, but backup is welcome( although targetting marshmellow there is a save function suppported).
I found also firebase to add to the list.
the problem is that I do not know which one I should pick up that offers first of all enough documentation(examples, tutorials) and second offer semplicity, and finally is free till my app does not grow.