
Firebase
Heroku
CouchBase
Parse
Kuzzle
Kumulos
AWS Amplify
Low code backend to build apps faster and scale easily.

WolframAlpha
SpeedCrunch
Qalculate!
Numi App
Wolfram Mathematica
Symbolab
Soulver
fxSolver is an free online math solver, equation library, graphing calculator and science/engineering problem helper. To get started, add some formulas, fill in any input variables and press "Solve."

Which is more popular?
Based on our record, Back4App seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | back4app.com | fxsolver.com |
| Pricing | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


Back4App supports developers and companies to accelerate backend development, improve development productivity, reduce time to market, and scale applications without managing infrastructure.
Calculate multiple equations at once, Edit existing formulas and Create new ones, Compute large numbers of values, Plot graphs, Link your results, Solve full problems and Share worksheets with your friends. fxSolver is a free tool developed by a team of engineers and programmers with the sole...
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Back4App is recommended for startups, indie developers, and enterprises that require a reliable and cost-effective backend service to rapidly develop and deploy applications. It is ideal for those who prefer not to manage their own servers or infrastructure and for projects that need quick scalability and real-time data management, such as social apps, mobile applications, and IoT solutions.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Serverless GraphQL #01 - Introduction to GraphQL on Parse using Back4App
More videos
fxSolver Demo
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Back4App and fxSolver. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Documentation and Guides:Official Docs: Refer to the official documentation of your chosen platform. For instance, Back4App and Parse have extensive guides on migrating from Firebase.Community Forums: Engage with...
Back4app is undoubtedly one of the most intriguing and high-quality free platforms for developing mobile and online apps.
Companies and development teams can definitely choose Back4App, a Firebase alternative, because it can process more than 3.5 billion requests on a monthly basis. Correspondingly, if you want Firebase-like services...
Recommendations tracked on public social media and blogs since March 2021.


I'm using back4app.com which is a cloud service for parse server, you can fire cloud code using node. Recently they introduce containers, but I didn't use it. Source: over 3 years ago
Tracking fxSolver since Mar 2021.
When comparing Back4App and fxSolver, you can also consider the following products.

Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Compare Firebase to Back4App or fxSolver:

WolframAlpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.
Compare WolframAlpha to Back4App or fxSolver:

Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
Compare Heroku to Back4App or fxSolver:

SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
Compare SpeedCrunch to Back4App or fxSolver:


Qalculate! is a multiplatform multi-purpose desktop calculator.
Compare Qalculate! to Back4App or fxSolver: