Why should you pay attention to Flutter? What makes Flutter different? See the video from Flutter Warsaw Meetup where Razvan Lung brings this topic closer.

What Makes Flutter so Performant - Flutter Warsaw #11 - LeanCode

One of the most popular topics in the Flutter community is performance, and the Flutter framework does an excellent job of being fast by default. You've probably read a lot of articles about how Flutter compares to other mobile development technologies and if you think how it stands out from the other frameworks you're in the right place. In the second part of the 11th edition of Flutter Warsaw Razvan Lung will show us how Flutter is so performant. We will take a look behind the Flutter engine and see how the Garbage Collector works. 

Why Dart is a really good language for Flutter?

What is the Garbage Collector in Dart and how does it work?

What is the Garbage Collectors Young Space Scavenger?

Watch the video about what makes Flutter so performant

Razvan Lung - What a Flutter! Or what makes it so performant - Flutter Warsaw #11

Why should you pay attention to Flutter? What makes Flutter different? Flutter uses Dart object-oriented programming language, which is the fastest-growing language, up by 532% between 2018 and 2019. GitHub states that Flutter is top 3 in the number of project contributions. Want to find out more? Watch the video.

What a Flutter! Or What Makes It So Performant

Watch Brian Egan's video on the importance of testing during mobile app development. Learn more to find the proper way of testing your application.

Our Summary of Flutter Warsaw #11 - LeanCode

Desperate time calls for desperate measures as people say. That is why we decided to respond to the current situation and expectations and take an online tour through the Flutter world. The first part of 11th Flutter Warsaw is about testing. Testing is a very important phase in the app cycle development. 

One way to be a better developer is to apply tests into your Flutter app, so if you are just starting with tests that is a great opportunity to make a start with Brian Egan, who will introduce to you the main concept. In this part you will learn:

Brian Egan - Testing in Flutter  Unit, Widget, and integration tests - Flutter Warsaw #11

Let's talk about tests! Dart and Flutter support three types of tests: Unit, Widget, and Integration tests. We'll start with a high-level overview of these different types of tests and when they're useful. Then, we'll dive into the details. See Brian Egan's presentation and become a pro in this topic.

Testing in Flutter: Unit, Widget, and Integration Tests

Krzysztof Sroka presents how Flutter renders widgets, gives tips for optimizing your app, and tells what to do if your app is “slow.” Watch the video to learn more.

At the second presentation 10th edition of Flutter Warsaw Meetup, we’ll take a close look at app performance and its optimization. If you are here, you might already know, that Flutter tries to provide us really smooth animations, 60 FPS (frames per second), or even 120 FPS rendering on devices that are capable of it. And it’s really good at it, in most scenarios of course, if we don’t fall into some pitfalls. But if we do, we need to know how to avoid such things. The answer to that question you’ll find out in this video, as well as:

Watch the video about improving Flutter app performance

Krzysztof Sroka -  Fluttering at 60 FPS - Flutter Warsaw #10

Flutter lets you write incredibly smooth animations with its promise of rendering at the speed of 60 FPS. But to achieve that, you need to make sure that you don’t slow down the app yourself. In the talk, Krzysztof describes how Flutter renders widgets, what it means for you, and presents some common pitfalls you should avoid.

LeanCode blog on building digital products, mobile development trends, Flutter, .NET and React technology, business cases, and technology solutions for corporations. 

Boost your knowledge of product development and technologies

Building an enterprise-scale application in Flutter, as in any other framework, requires a specific approach toward organizing the team and the code they create. This comprehensive tech article explains how to approach such a large-scale project.

Building an Enterprise Application in Flutter

Flutter is loved by many for its simple and fast development of high-quality cross-platform apps. Let’s take a closer look if Flutter is a suitable solution in every case, i.e., when developing mobile, web, and desktop applications.

Flutter Pros and Cons: Why Choose Flutter in 2025?

At LeanCode, we love live events. As co-founders of Flutter Europe and founder of Flutter Warsaw, we take every opportunity to visit our friends at other events of this kind. This time, we're diving into the most exciting conferences tailored specifically for Flutter enthusiasts in 2025. As a result, you can grab this curated list of Flutter conferences.

Flutter Conferences 2025: Must-Attend Events for Flutter Devs!

Read about the LeanCode approach to Flutter architecture. We highlight some of the design decisions that should be made when developing a feature in mobile apps. This includes our approach to dependency injection, state management, widget lifecycle, and data fetching.

Feature-Based Flutter App Architecture - LeanCode

With the changing landscape of identity management, at LeanCode we faced the challenge of selecting a new identity management solution that would be our default for the coming years. We want to share with you the whole journey. Find out more about our approach to this task.

Identity Management Solutions, Part I: Introduction