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We’ve been asked following questions.

How does SLAppForge Sigma compare to AWS Cloud9?

Unlike Cloud9, SLAppForge Sigma IDE does not require a server, VM, container, or an EC2 instance as a backend. It operates completely within a standard web browser as a lightweight IDE. It has been designed and developed to cater for Serverless application development and is not a general purpose IDE presenting a browser-based interface. Everything in Sigma happens between your web browser and your desired cloud platforms – AWS and/or GCP.


The Sigma IDE is a hybrid between drag-and-drop style development and the full and ultimate power of code. The drag-and-drop snippets introduce a powerful, uniform and intuitive library with auto-completion, which allow you to quickly become productive in developing Serverless applications that integrate with a myriad of cloud services.


In addition, the Sigma IDE allows you to test the code and debug it live on the AWS environment, by integrating the Lambda function with Chrome developer tools on your web browser. This allows you to halt execution of the Lambda function as it begins execution in the AWS environment, and step through its execution by setting breakpoints, watches and changing variables etc. The Sigma IDE also shows the tail-end of the CloudWatch logs of a Lambda function intuitively, and allows you to view metrics and monitoring information of the Lambda function via the SigmaDash console.

How much does SLAppForge Sigma cost?

Sigma IDE currently provides 2 types of user accounts which are Basic and Premium. You can sign up for a Basic account free of charge and you will be provided with a set of features that are more than enough for the development of typical serverless applications.


A basic account can be upgraded to a Premium account at anytime based on a Monthly or Annual subscription payment via PayPal. A Premium user gets to enjoy all the features provided with the basic account, in addition to a set of premium-only features that are useful for the development of advanced serverless applications. Please refer to the pricing page for more details on the features available for each account type and the subscription prices.


In addition to the Sigma subscription cost, when you deploy and use Serverless applications developed with Sigma, you will incur standard costs for the actual resources used by those applications, which you will pay directly to your cloud provider.

Which programming languages does SIGMA Support?

Currently, Sigma supports Node.js and Python. See Product Updates for more information. Support for other languages such as Java, Go and C# will be implemented in the future. Let us know your order of preference and any other suggestions for improvement as we enhance Sigma to be the Serverless development platform of choice.

Which cloud platforms does Sigma support?

Sigma currently offers first-class support for Amazon Web Services (AWS), including testing and live debugging. Google Cloud Platform (GCP) has basic support for development and deployment, with enhancements like real-time testing planned for the near future. We are actively seeking partnerships and funding to assist us to support other leading Serverless platforms such as Microsoft Azure, Alibaba Cloud, and on-premise solutions like OpenFaaS.

Which VCS frameworks does Sigma support?

Sigma currently offers version control management on GitHub, BitBucket and GitLab

Why does Sigma ask for my cloud (AWS/GCP) credentials?

Sigma simplifies your use of the cloud platform for building Serverless applications. Thus, the editor and deployment steps perform a significant amount of tasks on behalf of you, on your cloud platform account. This is why your credentials are required.

Does Sigma save my credentials or gain access to my cloud platform account?

No! Sigma does not save your credentials or grant itself any access to your account. This is a key product decision that will not be changed or compromised. Your account and resources remain completely isolated from Sigma.

But Sigma has an option to save my cloud credentials!

Yes, this is to help you avoid having to type in your credentials each time you log in. Saving your credentials is optional. If you choose to save your credentials, we will save them into our Amazon Cognito user store. However, we will encrypt your credentials before storage, either with your own login password (for direct signup accounts), or an additional encryption PIN (for social sign-up accounts).

Does SLAppForge host any of my runtime components that I develop?

No. None at all. Your code is saved in your GitHub/BitBucket account and runs on your AWS or GCP account. There is no dependency on any SLAppForge services after you complete your development and deploy to your cloud account.

Does Sigma obtain any permissions to my AWS/GCP account?

No. Your account never grants any privileges or permissions to Sigma or any other third parties.

We would like to white-label, invest in, or partner with SLAppForge.

That’s great! We are delighted to hear from you. The Sigma IDE has been white-labeled and deployed for testing and sandboxing fintech solutions both in the ASEAN region and the UK. SLAppForge is also looking for investors and partners who would like to work with us. Please contact us, or email us at info@slappforge.com

Wait! I have a question not listed here...

No worries! Write to us – or drop us a line via the live chat on the bottom of the page – and we will be happy to help.