When comparing Google Firebase vs Parse, the Slant community recommends Google Firebase for most people. In the question“What are the best Android BaaS (Backend as a Service) providers?” Google Firebase is ranked 1st while Parse is ranked 10th. The most important reason people chose Google Firebase is:
The Blaze Plan is a pay-as-you-go plan, which is, you pay for what you use, without overhead or upfront costs.
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Pros
Pro Flexible Pricing
The Blaze Plan is a pay-as-you-go plan, which is, you pay for what you use, without overhead or upfront costs.
Pro Straightforward hosting
Powered by Google's Cloud Platform, Firebase allows you to deploy static web pages or web applications with a nifty Node.js-based CLI Tool.
Pro Super fast CDN
All static website content is hosted on the Fastly CDN making your website really fast.
Pro More than just hosting web applications
In the core of Firebase allows you to do testing for Android apps, Analytics, Real-time Database, and many more. It's centered mostly for progressive web applications and mobile applications with real-time connectivity to your service.
Pro Almost free if you add Cloudflare in front (no bandwidth costs) and cache effectively
The built-in CDN is great too, but if you're concerned about bandwidth costs, using it with Cloudflare is an excellent option option.
Pro Free plan
Parse offers unlimited API calls (max of 30req/sec), 1 million pushed and analytics for free.
Pro Asynchronous uploading of files
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 Simple and seamless user registration
User registration with Parse 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 Extremely easy to setup
Setting up a backend for an app with Parse 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 Great documentation
Parse has excellent documentation. Everything is thoroughly explained and all parts of the documentation are complete. It's actually very helpful for both beginners and advanced users alike.
Cons
Con Google blocks Access
Some Google services, software and cloud systems, are not available to certain countries. blocked access by google following USA Policies.
Con Linked to Google Cloud Platform
If you don't have a Google Account, you won't be able to access Google cloud services, including this one.
Con Abandoned
Parse has been discontinued and will not be available anymore.
Con Parse.com is shutting down
Facebook decided to shut down Parse.com. It will be fully retired on January 28th, 2017.
Con There can be downtimes
There have been several reports that it's not unlikely for Parse to go down several minutes almost every day. This can be very frustrating for both developers and users who are using apps built on Parse.