When comparing Kinvey vs Skygear, the Slant community recommends Kinvey for most people. In the question“What are the best Android BaaS (Backend as a Service) providers?” Kinvey is ranked 2nd while Skygear is ranked 9th. The most important reason people chose Kinvey is:
When you want to upload a file, you just create an object and initialize the file upload to the server (this is done asynchronously).
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Pros
Pro Asynchronous file uploading
When you want to upload a file, you just create an object and initialize the file upload to the server (this is done asynchronously).
Pro Provides a straightforward way of connecting their services
Setting up a backend for an app with Kinvey is very easy and takes minutes. All you have to do is sign up and through their graphical interface follow all the steps, which boils down to creating tables and identifying the type of data that is being stored.
Then you download the library, integrate it with your app and initialize the process with one single line.
Pro User registration is easy
User registration with Kinvey is pretty good and usually works without any problems. It's also very easy to use, you simply pass the username, password, email, etc. to the required method and register a callback that returns whether the registration was a success or a failure.
Same thing is done for login and logout as well.
Pro Raw data is exportable
Pro Supports User authentication
Pro Supports Cloudcode
Pro Rich SDK support
Skygear has SDKs for iOS, Android, JavaScript.
Pro Scalable Backend
Cons
Con Costs are eye-wateringly high
The free tier is not that generous and as soon as you trip the paid tier it costs you thousands a month.
Con The free plan isn't that good
Kinvey's free plan only includes the first 1000 users for free, 5 million push notifications (which admittedly, is pretty nice) and 2GB of storage.