AWS Lambda

11.7K
8.2K
+ 1
407
Realm

173
210
+ 1
10
Add tool

AWS Lambda vs Realm: What are the differences?

What is AWS Lambda? Automatically run code in response to modifications to objects in Amazon S3 buckets, messages in Kinesis streams, or updates in DynamoDB. AWS Lambda is a compute service that runs your code in response to events and automatically manages the underlying compute resources for you. You can use AWS Lambda to extend other AWS services with custom logic, or create your own back-end services that operate at AWS scale, performance, and security.

What is Realm? Realm makes it easy to build reactive apps, realtime collaborative features, and offline-first experiences. The Realm Mobile Platform is a next-generation data layer for applications. Realm is reactive, concurrent, and lightweight, allowing you to work with live, native objects.

AWS Lambda belongs to "Serverless / Task Processing" category of the tech stack, while Realm can be primarily classified under "Mobile Database".

Some of the features offered by AWS Lambda are:

  • Extend other AWS services with custom logic
  • Build custom back-end services
  • Completely Automated Administration

On the other hand, Realm provides the following key features:

  • Feels like Home - Realm’s data structures look like the Objects and Arrays of your language, but provide additional features such as: querying, relationships & graphs, thread safety, and more.
  • Memory-Efficient - Realm is not built on SQLite. Instead, a custom C++ core is used to provide memory-efficient access to your data by using Realm objects, which usually consume less RAM than native objects.
  • F-F-Fast! - Realm offers extraordinary performance compared to SQLite and other persistence solutions.

"No infrastructure" is the primary reason why developers consider AWS Lambda over the competitors, whereas "Good" was stated as the key factor in picking Realm.

Realm is an open source tool with 13.3K GitHub stars and 1.73K GitHub forks. Here's a link to Realm's open source repository on GitHub.

9GAG, Asana, and CircleCI are some of the popular companies that use AWS Lambda, whereas Realm is used by SocialCops, Patreon, and Wongnai. AWS Lambda has a broader approval, being mentioned in 1022 company stacks & 612 developers stacks; compared to Realm, which is listed in 39 company stacks and 5 developer stacks.

Decisions about AWS Lambda and Realm
Tim Nolet
Founder, Engineer & Dishwasher at Checkly · | 13 upvotes · 52.5K views

When adding a new feature to Checkly rearchitecting some older piece, I tend to pick Heroku for rolling it out. But not always, because sometimes I pick AWS Lambda . The short story:

  • Developer Experience trumps everything.
  • AWS Lambda is cheap. Up to a limit though. This impact not only your wallet.
  • If you need geographic spread, AWS is lonely at the top.
The setup

Recently, I was doing a brainstorm at a startup here in Berlin on the future of their infrastructure. They were ready to move on from their initial, almost 100% Ec2 + Chef based setup. Everything was on the table. But we crossed out a lot quite quickly:

  • Pure, uncut, self hosted Kubernetes — way too much complexity
  • Managed Kubernetes in various flavors — still too much complexity
  • Zeit — Maybe, but no Docker support
  • Elastic Beanstalk — Maybe, bit old but does the job
  • Heroku
  • Lambda

It became clear a mix of PaaS and FaaS was the way to go. What a surprise! That is exactly what I use for Checkly! But when do you pick which model?

I chopped that question up into the following categories:

  • Developer Experience / DX 🤓
  • Ops Experience / OX 🐂 (?)
  • Cost 💵
  • Lock in 🔐

Read the full post linked below for all details

See more
Pros of AWS Lambda
Pros of Realm

Sign up to add or upvote prosMake informed product decisions

Cons of AWS Lambda
Cons of Realm
    No cons available

    Sign up to add or upvote consMake informed product decisions

    - No public GitHub repository available -

    What is AWS Lambda?

    AWS Lambda is a compute service that runs your code in response to events and automatically manages the underlying compute resources for you. You can use AWS Lambda to extend other AWS services with custom logic, or create your own back-end services that operate at AWS scale, performance, and security.

    What is Realm?

    The Realm Mobile Platform is a next-generation data layer for applications. Realm is reactive, concurrent, and lightweight, allowing you to work with live, native objects.
    What companies use AWS Lambda?
    What companies use Realm?

    Sign up to get full access to all the companiesMake informed product decisions

    What tools integrate with AWS Lambda?
    What tools integrate with Realm?

    Sign up to get full access to all the tool integrationsMake informed product decisions

    Blog Posts

    What are some alternatives to AWS Lambda and Realm?
    Serverless
    Build applications comprised of microservices that run in response to events, auto-scale for you, and only charge you when they run. This lowers the total cost of maintaining your apps, enabling you to build more logic, faster. The Framework uses new event-driven compute services, like AWS Lambda, Google CloudFunctions, and more.
    Azure Functions
    Azure Functions is an event driven, compute-on-demand experience that extends the existing Azure application platform with capabilities to implement code triggered by events occurring in virtually any Azure or 3rd party service as well as on-premises systems.
    AWS Elastic Beanstalk
    Once you upload your application, Elastic Beanstalk automatically handles the deployment details of capacity provisioning, load balancing, auto-scaling, and application health monitoring.
    AWS Step Functions
    AWS Step Functions makes it easy to coordinate the components of distributed applications and microservices using visual workflows. Building applications from individual components that each perform a discrete function lets you scale and change applications quickly.
    Google App Engine
    Google has a reputation for highly reliable, high performance infrastructure. With App Engine you can take advantage of the 10 years of knowledge Google has in running massively scalable, performance driven systems. App Engine applications are easy to build, easy to maintain, and easy to scale as your traffic and data storage needs grow.
    See all alternatives
    Interest over time
    How much does AWS Lambda cost?
    How much does Realm cost?
    Pricing unavailable
    News about Realm
    More news