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Regardless of having billions of customers, have you ever ever skilled downtime whereas utilizing Netflix?
Whereas reserving a journey from Uber, have you ever ever confronted an error?
Your reply will probably be most likely NO.
As a result of, these firms have taken the smart move and switched to Kotlin programming language to make their cellular app environment friendly, scalable, and error-free.
However, what are the advantages of transferring your app answer to the Kotlin programming language?
This weblog covers the highest Kotlin app examples, together with the challenges they have been dealing with and the way Kotlin helped them to unravel these challenges efficiently.
High Kotlin App Examples
The desk under incorporates the highest firms who’ve applied Kotlin to construct their Android purposes. Even, to grasp the best way to develop an Android app utilizing Kotlin, this information will assist.
Confer with this desk to know the income, scores, and obtain choice to test how they’ve constructed their app.
| Brand | App Identify | Income (2021) | Rankings (Play Retailer) | Obtain Hyperlink | Obtain Hyperlink |
|---|---|---|---|---|---|
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Netflix | $7709 Million | 4.5 (12,642,411) |
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Uber | $4.8 billion | 3.9 (94,55,581) |
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$847 million | 4.6 (8,777,988) |
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Evernote | $50 million | 4 (16,69,532) |
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Duolingo | $45.3 million | 4.5 (11,939,405) |
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| Coursera | $109.9 million | 4.2 (130,143) |
Within the subsequent part, we are going to deal with two factors:
- What have been the challenges these purposes have been dealing with?
- How did they’ve transfer to the Kotlin programming language and resolve these points?
-
Netflix

Picture Supply: Netflix
Have you ever ever questioned how Netflix mange to deal with billions of customers each day? Why does their utility by no means crash? As of March 2020, Netflix has over 50,000 titles included and 5817 sequence are there in Netflix. Nonetheless, you’ll not expertise a single concern whereas streaming content material on Netflix.
If we talk about the Netflix app, Kotlin has a easy syntax that reinforces the effectivity and velocity of Kotlin app builders. It follows a strict sample. It now takes fewer strains and fewer time to write down an utility. Many individuals admire Kotlin for its high quality, brevity, and readability, which has helped it to outperform Java.
What Challenges Netflix Was Going through Earlier than Utilizing Kotlin?
- The app used crashes generally resulting from an extreme quantity of customers.
- The applying used to lag after some time.
- The app measurement of Netflix was bigger than ordinary.
How Does Kotlin Assist Netflix?
- Netflix wished to make use of a multi-platform method, and the agnostic code for Android and iOS is feasible to write down in Kotlin after which used for each techniques directly.
- The code of the Netflix app is written as an Android Kotlin library, and on the opposite, as a local common framework for iOS. The latter is completed with the assistance of Kotlin-native, which permits code to be translated natively for iOS reasonably than operating within the Java Digital Machine.
Uber

Picture Supply: Uber
Uber is without doubt one of the most well-known for its taxi and meals supply providers. Uber has switched fully to Kotlin growth for cellular app growth. The rationale behind that’s, they’ve closely invested in Kotlin app growth for inside tooling procedures like annotation processors and Gradle plugins.
What Challenges Uber Was Going through?
- Inner instruments weren’t working correctly, even the mannequin administration.
- Initially, the efficiency of Uber was lagging behind earlier than making use of Kotlin.
- Customers have been dealing with errors and lag whereas reserving rides and whereas paying for the providers.
How Does Kotlin Assist Uber?
- Uber at the moment closely depends on Kotlin to assist enable their customers to utilise their Inner instrument.
- The Kotlin programming language’s focus is thread security, context, and knowledge sharing between threads. There is no such thing as a requirement to make use of particular annotations, as there’s a precedence thread security, context, and knowledge sharing.
- The Kotlin is open for all of the builders and the implementation is with none value.
- The supply code of Kotlin makes it easy to find and report an issue within the occasion that one arises in order that the language’s creators understand it.
Wish to Validate Your App Thought?
Seek the advice of us. Develop a wealthy and fascinating cellular app that grabs the consumer’s consideration.

Picture Supply: Pinterest
Pinterest is a well known photo-sharing cellular app that was initially in-built Android. The corporate was based in 2010, after which it migrated from Java to Kotlin 2016. The prime cause was the robustness of the Kotlin language. Aside from this, Pinterest has applied Kotlin even earlier than Google introduced its first-class help.
What Challenges Pinterest Was Going through?
- Java was thought-about the first language for customized Android utility growth. By the point, the Pinterest group was looking for a productive, concise, trendy, and different boilerplateless different.
- Builders must spend extra hours constructing and testing the product.
How Does Kotlin Assist Pinterest?
- Kotlin permits a developer to code with velocity and confidence and removes a lot of the rote work that had been required whereas utilizing Java.
- The applying’s consumer expertise, in addition to its usability, has been elevated considerably.
- Pinterest is well-known all over the world and has been round for fairly a while. Due to the performance and comfort of use, their Android utility is used greater than their web site.
Test the case research of two well-liked cellular purposes we’ve got constructed utilizing Kotlin programming language.
TOR is an Android app that gives the perfect VPN providers accessible throughout the globe. It has been downloaded by 100K customers together with that, the app has obtained greater than 8500 scores with a median of 4.3 stars.
Greeley water auditors can use a Metropolis of Greeley water station audit app. Panorama irrigation audit experiences may be generated within the app by auditors.
Evernote

Picture Supply: Evernote
Evernote is a note-taking app that was initially developed utilizing Java, earlier than transferring to Kotlin. Evernote’s Android app now contains Kotlin help. The weblog of Evernote contains solely slight details about the tech specs associated to Kotlin integration The corporate realised quickly, that transferring to Kotlin may be the sensible selection in terms of their growth stack.
What Challenges Evernote Was Going through?
- Customers have been dealing with an growing quantity of app startup time.
- Information sync was the most important concern, confronted by the vast majority of the customers. After including a observe, generally the app was not synching that data in real-time.
- The crashing points have been the most important turn-off for the app’s success, because it used to crash actually because it was not in a position to deal with.
How Does Kotlin Assist Evernote?
- Evernote’s Android app employs the Kotlin programming language for reliability, readability, and efficiency. Evernote is a well known program that’s particularly meant for taking notes and managing duties.
- Evernote has added performance equivalent to scanning handwritten notes, net pages, photographs, to-do lists, audio, and extra because of helpful Kotlin’s options.
Duolingo

Picture Supply: Duolingo
With over 42 million customers in 2020, Duolingo is a well known language studying platform. Even, it comes within the class of essentially the most downloaded schooling app throughout the globe. The first purpose of the corporate is to make schooling with none cost accessible to everybody. The gamification function makes the Duolingo interactive app that helps customers to study complicated issues in a easy manner. Confer with this information, if you wish to know extra about the best way to create a language studying app like Duolingo.
Being a major platform Duolingo has developed the Duolingo English Check, which is a handy and reasonably priced language certification you’ll be able to join. Even institutes such because the College of North Alabama, Arizona State College, and the College of Arkansas within the USA settle for the Duolingo proficiency take a look at.
What Challenges Duolingo Was Going through?
- The strains of code have been growing by 46% yearly for Duolingo. To unravel this concern, it was important emigrate the code from Java to Kotlin.
How Does Kotlin Assist Duolingo?
- Duolingo’s builders discovered that by altering the codebase to Kotlin, they diminished the road rely by 30% on common, and as much as 90% in some instances.
- Kotlin is considerably much less verbose than Java, making it sooner and simpler to write down and preserve. Its seamless Java interoperability and cautious method to including new language options make it easy to study for any Android developer.
Wish to Develop Your Android App utilizing Kotlin?
Our Kotlin guide will information and help you in growing scalable Android app options to your firm.
Coursera

Picture Supply: Coursera
Coursera is a non-profit academic group that gives free on-line programs taught by famend faculties and institutes equivalent to Stanford and Yale. The prime cause for selecting Kotlin is Coursera doesn’t have distinct platforms for Android and iOS.
For providing extraordinarily dynamic options and a flawless expertise to their viewers, the favored MOOC (huge open on-line programs) depends partly on this Android utility growth language.
What Challenges Coursera Was Going through?
- For Android builders, discovering minor bugs was tough prior to make use of Kotlin.
- The try to entry null values is a typical downside in lots of programming languages. In consequence, an error happens.
How Does Kotlin Assist Coursera?
- Kotlin has fully eradicated errors that have been inflicting points within the Coursera app, that’s the core cause why Coursera works flawlessly with none concern.
- Kotlin offered this app with a easy interface and all the required options to maintain enhancing the applying.
- The principle cause behind the flawless working of Coursera is Kotlin, because it removes errors out of your code permits the app to work easily.
Listed here are FAQs in regards to the Kotlin programming language that will help you know extra in regards to the language.
FAQs Round Kotlin App Examples
What’s Kotlin used for?
The aim of Kotlin is to offer interoperability, tooling help, security, and readability. Even, in comparison with Java, Kotlin is the extra streamlined and concise model of Java. The aim of using the Kotlin programming language is to construct Android apps sooner. This programming language helps to extend builders’ productiveness, enhance builders’ satisfaction and assist in the security degree of code.
Can Kotlin be used for net growth?
Sure, Kotlin can be utilized for net growth. Nonetheless, it’s nonetheless fairly an early stage for Kotlin to be absolutely transformed into an internet programming language. Undoubtedly, Kotlin has changed Java, however to interchange Java in net growth will take some extra time for Kotlin.
Why is Kotlin higher than Java?
- Kotlin solves the issues utilizing fewer strains of code. The code of Kotlin is concise and permits builders to switch and skim the code easily to cut back the undertaking timeline.
- As Kotlin is written in fewer strains of code, there’s a decreased probability for the bugs to cover. The readability permits finding the bugs simpler for the builders due to this fact the app will end in fewer errors and crashes.
Let’s Construct a Profitable Kotlin Software Collectively
On this weblog, we’ve got mentioned the highest firms who’ve migrated in the direction of the Kotlin programming language to scale their utility. If you wish to construct a sustainable enterprise over the long term, make the sensible selection and construct your cellular app utilizing Kotlin.
As Kotlin has already been adopted by main firms of their Android purposes. There are additionally open-source initiatives which might be well liked by builders, demonstrating that the language may be efficiently utilized in Android growth.
In case you are planning to signup for an Android app growth service, you must take into account Kotlin as your major cellular app growth language. We’ve got a devoted group of Kotlin app builders who will assist you flip your concept right into a fully-fledged cellular app. Contact us to construct your custom-made Kotlin app.
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