When comparing Symfony vs ActFramework, the Slant community recommends Symfony for most people. In the question“What are the best web frameworks to create a web REST API?” Symfony is ranked 17th while ActFramework is ranked 20th. The most important reason people chose Symfony is:
Symfony is open source and released under the MIT license.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Open Source
Symfony is open source and released under the MIT license.
Pro Easy debugging with a built-in debug toolbar
Symfony comes with a built-in toolbar that helps developers debug their applications during the development phase.
The toolbar is also extendable and new components, called panels can be added if needed to help with the debugging process.
Pro Great plugin ecosystem
One of the greatest strengths of Symfony is it's amazing and large plugin ecosystem, which comes as a result of it's large and dedicated community. Having a large number of plugins means less development time and more productivity.

Pro Highly active community
Symfony has one of the most active communities out of all the PHP frameworks. This is shown by the high number of commits made every day in the GitHub repo.
Pro Teaches you good practices
Symfony makes you be a better programmer. You have to deal with the latest object-oriented design patterns such as service-oriented architecture, dependency injection, interface abstraction, and so on.
Pro Uses YAML/XML/PHP/Annotation
Symfony makes use of XML, YAML or PHP annotations to create configurations in order to tell Doctrine on how properties of a certain class should be.
Pro Powerful event system
Symfony has a powerful built-in event system that allows you to add flexibility to applications and makes it easier to maintain the codebase down the road.
Pro Great templating engine
Uses Twig, which is a simple and easy to learn templating language that can also be used as a standalone engine, outside the framework.
Pro Uses Doctrine ORM
Symfony makes use of the Doctrine ORM to add an abstraction layer over the database in order to maintain flexibility without having unnecessary code duplication.
Pro Performance
There are two aspects of performance: how quick a developer can deliver a feature and how fast the app is running on the product server. Act is designed to deliver excellent results in both aspects. With unbeatable developing experience, Act makes it very easy to release a feature; on the other side Act is very fast in runtime. Check out this 3rd party benchmark result.
Pro Hot reload
You never restart while you're working on your Act application. Act's hot reload feature is fast and stable, it makes you feel like dealing with scripting language frameworks like Django or NodeJs. Watch this video and feel it.
Pro Scalability
Act is built as a stateless framework. It supports horizontal scale.
Pro Secure
Act is built as a secure product. It provides built-in CSRF/XSS prevention mechanism. And act-aaa makes it very easy to implement Authentication/Authorization/Auditing in your app.
Pro Superb RESTful support
Act makes creating RESTful service a kids game. It features AdaptiveRecord (allows front end to drive the data structure), JSON response control (just declare the fields you want to present or hide) and RESTful URL routing with path variables.
Pro Easy to deploy
ActFramework is not a servlet framework and there are no requirements on containers/app servers. It has a small package size (a helloworld distribution package size is less than 20 MB), a small memory feet print (a helloworld app heap usage is less than 20MB) and a fast boot up speed (a helloworld app starts in less than 3s).
Pro Templating
Act's view architecture is very flexible and support using multiple view engines in your app. The default template engine is Rythm, a very developer friendly and powerful template engine. Act also support other templating solutions including freemarker, velocity, thymeleaf, and mustache via plugins.
Pro Configuration for multiple environments
Act supports load configuration from a common dir and then overwriting it from a profile dir. Makes it very easy to manage configurations in different environments (e.g., dev, uat, sit, prod) Watch this video to see the innovative way Act delivers its configuration support.
Pro Concise and expressive
Act does not require you to put Annotation when it is able to infer the intention from other parts of the code, i.e., you don't use @PathVariable
or @RequestParam
to tell Act the binding parameter name. And you don't need a ModelMap
to bind variables to render argument names. Act has sophisticated byte class scanner to detect the variable names to do bindings automatically.
Pro Comply to standards
Act's IoC is built on top of Genie, a fast dependency injection library that fully supports JSR330, and Act's validation solution is built on top of JSR303. Act is NOT an odd framework to most Java developers. Unlike Play1.x, ACT applications follow the standard maven project structure and it is very easy to integrate other Java libraries.
Pro Database access
Act's DB layer is extremely easy to use. It supports SQL databases (through ebean orm) and MongoDB (through morphia). Using multiple datasource can never be that easy with Act's DB layer. Go here for more information on this.
Pro Fast and flexible routing
You can configure your routing in either Spring MVC/Jersey style with annotation or Play style with route table or a combination of both. Act's routing supports RESTful URL path variables, optionally validated with regular expressions.
Cons
Con Settings
Too many configurations.
Con Very hard to install
Setting it up on webhost without a console is difficult.
Con Promotes bad development practices
Such as annotations via comments.
Con Doctrine ORM
Symfony Standard Edition, which is the most widely used distribution, comes integrated with Doctrine, the most resource hogging ORM library.
Con You need a lot of files to display a single page
For a simple hello world page you need about 5 files.
Con Incomplete microservice support
Although Act is built to be a great framework that supports microservice development, it lacks some of the key features at the moment, like sending requests to other microservices from within the app, service governance, and messaging handling.
Con Very small community
As of February 2017, Act is a brand new framework (even though the project started at the end of 2014). Community is still forming.
Con Functional testing support still under development
Developers are still working on innovative functional testing support for Act.
Con Documentation is still being written
Act's documentation is still under development.
