When comparing Back4App vs Kumulos, the Slant community recommends Back4App for most people. In the question“What are the best alternatives to Firebase?” Back4App is ranked 1st while Kumulos is ranked 14th. The most important reason people chose Back4App is:
The platform is reliable allow to scale up the applications running on it.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Open source
Back4app is an open source BAAS and Backend generator.
Pro Smooth migration from Parse
Back4App offers a smooth migration for all former Parse users who wish to migrate their data now that Parse has announced that it will stop soon.
Pro Good for mobile app development companies
Scales very well and useful console to view all their apps and its fully rebrandable which works great if you want to give the clients you are building apps for access to their own view of how it is performing. The fact that it comes with integrated push notifications and their automated monthly report is also great.
Pro Granular permissions
For companies or large teams of developers, where there are multiple projects being worked on at once, you can choose permissions for any developer and decide who gains access to each app on the backend.
Lets you rebrand the system, which works well if you want to give the clients you are building the app for access to their own view of how their app is performing.
Also like the fact it comes with the option of integrated push notifications and an automated executive summary report.
Pro Awesome support - a rarity these days. A support team that answers your questions and you can actually talk to them.
Have found response times to be pretty amazing, usually same day, often within an hour of logging a ticket.
Pro Multiple Services in one place
Having Crash, Analytics, Push, Content Management, ASO, Data Storage all in one place, from a single SDK
Cons
Con Uses MongoDB for the backend, which is not considered very safe by many
Back4App uses MongoDB as the database where data is stored. Mongo has been known to have issues with data corruption and data loss.
Con Weak documentation
In the last year they launched a dedicated Docs site that has made this a lot better. https://docs.kumulos.com/
Prior to that Kumulos was lacking in the documentation department. A lot of things are explained in just a few sentences.