Flutter vs Native vs React Native: Deep Performance Comparison

Let’s compare FPS, CPU, Memory, and GPU performance of popular mobile development tools on everyday life tasks.

The story behind the research

inVerita and its mobile development team continuously dig into the performance of cross-platform mobile solutions available on the market to answer the question which technology is best Flutter or React Native(or Native) for your product, maybe even career. Yes, it was quite controversial as one can state we weren’t using React Native to perform multiple calculations daily — that might be the case — but in this case, CPU heavy tasks are better performed by Flutter or Native apps.

That’s why in this article we decided to research the performance of UI which has a much bigger impact on a daily user of mobile apps.

Measuring UI performance is complex and it requires an engineer to implement the same functionality in the same way across every platform. We went with a GameBench as a global testing tool to leave no doubts and make sure we stay objective (it doesn’t change the fact that we truly love Flutter in most aspects:) and still run lots of React Native and Native projects ). GameBench has a lot of space for improvements, but we managed to put every app into a single testing environment with its help which was our goal.

Source code is open so please experiment and share your thoughts with us if you wish. UI animations mostly use different tools across different platforms so we narrowed everything to libraries supported by every platform (but one case) or at least we did everything we could to accomplish that. Test results can be different and depend on your approaches to the implementation, we believe that you, as a potentially true expert of specific technology can push your specific set of tools to the limits where it outperforms our numbers and we are happy if you do. Now, let’s have a look at the cases.

Hardware info:

For our testing purposes, we were using an affordable Xiaomi Redmi Note 5 and iPhone 6s.

Repo link:

Source code

Use case 1 — List view benchmarking

We implemented the same UI on Android and iOS with the use of Native, React Native, and Flutter. We also automated scroll velocity with the use of RecyclerView.SmoothScroller on Android. On iOS and React Native we used an approach with timer and programmatically scrolling to position. On Flutter, we used ScrollController to smoothly scroll over the list. In each case, we had 1000 items in the list view and the same scrolling time to reach the last list element. In each of these cases, we used image caching with different libs per platform. More details could be revealed in the source code.

Third-party libraries used in this case:

iOS

• Loading and caching images — Nuke

Android

• Loading and caching images — Glide

React Native

• Loading and caching images — React-native-fast-image

Android — GPU tests results are not supported by the benchmark (unfortunately, with the devices we have, and we have many:)) )

Test results

1. All tests have shown approximately the same FPS.
2. Android Native uses half as much memory compared to Flutter and React Native.
3. React Native requires the most significant CPU exploitation. The reason is the use of JSBridge between JS and Native code that incites the waste of resources on serialization and deserialization.
4. Regarding battery exploitation, Android Native has the best outcome. React-native is lagging behind both Android and Flutter. Running continuous animations consume more battery power on React Native.

#flutter #native #react-native #developer

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How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

• Performance: It delivers optimal performance.
• Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
• UI design: React Native enables you to design simple and responsive UI for your mobile app.
• 3rd party plugins: This framework supports 3rd party plugins.
• Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

• Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
• Near-native user experience: React Native provides several native components, and these are platform agnostic.
• The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

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Google's Flutter 1.20 stable announced with new features - Navoki

Flutter Google cross-platform UI framework has released a new version 1.20 stable.

Flutter is Google’s UI framework to make apps for Android, iOS, Web, Windows, Mac, Linux, and Fuchsia OS. Since the last 2 years, the flutter Framework has already achieved popularity among mobile developers to develop Android and iOS apps. In the last few releases, Flutter also added the support of making web applications and desktop applications.

Last month they introduced the support of the Linux desktop app that can be distributed through Canonical Snap Store(Snapcraft), this enables the developers to publish there Linux desktop app for their users and publish on Snap Store.  If you want to learn how to Publish Flutter Desktop app in Snap Store that here is the tutorial.

Flutter 1.20 Framework is built on Google’s made Dart programming language that is a cross-platform language providing native performance, new UI widgets, and other more features for the developer usage.

Here are the few key points of this release:

Performance improvements for Flutter and Dart

In this release, they have got multiple performance improvements in the Dart language itself. A new improvement is to reduce the app size in the release versions of the app. Another performance improvement is to reduce junk in the display of app animation by using the warm-up phase.

If your app is junk information during the first run then the Skia Shading Language shader provides for pre-compilation as part of your app’s build. This can speed it up by more than 2x.

Added a better support of mouse cursors for web and desktop flutter app,. Now many widgets will show cursor on top of them or you can specify the type of supported cursor you want.

Autofill for mobile text fields

Autofill was already supported in native applications now its been added to the Flutter SDK. Now prefilled information stored by your OS can be used for autofill in the application. This feature will be available soon on the flutter web.

A new widget for interaction

InteractiveViewer is a new widget design for common interactions in your app like pan, zoom drag and drop for resizing the widget. Informations on this you can check more on this API documentation where you can try this widget on the DartPad. In this release, drag-drop has more features added like you can know precisely where the drop happened and get the position.

Updated Material Slider, RangeSlider, TimePicker, and DatePicker

In this new release, there are many pre-existing widgets that were updated to match the latest material guidelines, these updates include better interaction with Slider and RangeSlider, DatePicker with support for date range and time picker with the new style.

New pubspec.yaml format

Other than these widget updates there is some update within the project also like in pubspec.yaml file format. If you are a flutter plugin publisher then your old pubspec.yaml  is no longer supported to publish a plugin as the older format does not specify for which platform plugin you are making. All existing plugin will continue to work with flutter apps but you should make a plugin update as soon as possible.

Preview of embedded Dart DevTools in Visual Studio Code

Visual Studio code flutter extension got an update in this release. You get a preview of new features where you can analyze that Dev tools in your coding workspace. Enable this feature in your vs code by _dart.previewEmbeddedDevTools_setting. Dart DevTools menu you can choose your favorite page embed on your code workspace.

Network tracking

The updated the Dev tools comes with the network page that enables network profiling. You can track the timings and other information like status and content type of your** network calls** within your app. You can also monitor gRPC traffic.

Generate type-safe platform channels for platform interop

Pigeon is a command-line tool that will generate types of safe platform channels without adding additional dependencies. With this instead of manually matching method strings on platform channel and serializing arguments, you can invoke native class and pass nonprimitive data objects by directly calling the Dartmethod.

There is still a long list of updates in the new version of Flutter 1.2 that we cannot cover in this blog. You can get more details you can visit the official site to know more. Also, you can subscribe to the Navoki newsletter to get updates on these features and upcoming new updates and lessons. In upcoming new versions, we might see more new features and improvements.

You can get more free Flutter tutorials you can follow these courses:

• Setup Flutter Desktop on Windows, Linux, MacOS using VSCode and Build – Flutter Tutorial
• Flutter Desktop Linux app | Build and Publish on Snapcraft Store
• Firebase Local Emulator Suite in Flutter

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React Native App Developers India, React Native App Development Company

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We help businesses to scale up the process and achieve greater performance by providing the best react native app development services. Our skilled and experienced team’s apps have delivered all the expected results for our clients across the world.

To achieve growth for your business, hire react native app developers in India. You can count on us for all the technical services and support.

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Hire Dedicated React Native Developer

Have you ever thought of having your own app that runs smoothly over multiple platforms?

React Native is an open-source cross-platform mobile application framework which is a great option to create mobile apps for both Android and iOS. Hire Dedicated React Native Developer from top React Native development company, HourlyDeveloper.io to design a spectacular React Native application for your business.

Consult with experts:- https://bit.ly/2A8L4vz

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Hire Dedicated React Native Developers - WebClues Infotech

Being one of the emerging frameworks for app development the need to develop react native apps has increased over the years.

Looking for a react native developer?

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Want to get your app idea into reality with a react native framework?

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