Re: Core Data sync between iOS and Mac apps
Re: Core Data sync between iOS and Mac apps
- Subject: Re: Core Data sync between iOS and Mac apps
- From: Jens Alfke <email@hidden>
- Date: Tue, 05 May 2015 16:39:00 -0700
> On May 5, 2015, at 2:31 PM, email@hidden wrote:
>
> I'm looking into options for building an iOS and Mac app that can sync/share Core Data between them. I'm well aware of the issues with Core Data iCloud syncing in iOS 5 and 6 and that it is supposedly better so I'm willing to try it.
I wouldn't recommend it. The sync mechanism for Core Data is IMHO a terrible kludge, and you have zero visibility into the server-side storage nor any ability to diagnose server-side problems. I still see user complaints in reviews of apps that use iCloud sync (Ulysses is one recent example.)
On the other hand, I'm biased because I work on a competing sync solution, Couchbase Lite*. It's designed from the ground up to do sync, you can run your own server, it supports multi-user sharing, and it's all open source. It has its own Cocoa API, but you can also use it as a back-end for Core Data.
Another solution to look into is Parse**. It's apparently pretty fast and reliable, although as a hosted service you don't have control over the servers (and you have to trust Facebook to play nice with your data.)
Dropbox has a data-sync API, but they just announced that they're deprecating it and phasing it out.
—Jens
* http://www.couchbase.com/nosql-databases/couchbase-mobile <http://www.couchbase.com/nosql-databases/couchbase-mobile>
** http://parse.com
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