Kotlin Android App Development: Build a Messaging Application — PickAClass
⏱ 2h 30m 📚 25 lessons 🎧 Audio version

Kotlin Android App Development: Build a Messaging Application

Learn Kotlin programming and Android Studio fundamentals to design, build, and version-control your own interactive mobile chat applications.

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About this course

Mobile app development is one of the most valuable technical skills today, and Kotlin is the modern standard for creating robust Android applications. This text-based course guides you through the entire process of mastering Kotlin syntax, navigating Android Studio, and building a functional messaging application. By reading through detailed explanations, studying clear code snippets, and practicing with structured written exercises, you will transition from a coding beginner to a confident mobile developer. You will learn how to structure an Android project, manage application state, and implement real-time communication features. What you'll learn: - Understand foundational Kotlin syntax, object-oriented concepts, and modern type safety - Configure Android Studio and navigate the project structure with confidence - Design responsive user interfaces using modern layouts and material design principles - Implement real-time messaging features and local data storage for a chat application - Manage source code changes and collaborate effectively using Git version control - Apply modern Android development best practices, including asynchronous programming and state management The course begins with essential terminology, basic programming concepts, and Kotlin fundamentals before guiding you step-by-step through the creation of a messaging application. You will progress from simple text displays to dynamic, interactive screens and data integration. This course is designed for absolute beginners to programming and mobile development, with no prior coding experience required. Start reading today to build your first professional Android application with Kotlin.

Course contents

What you'll get

  • 📜 Certificate of completion
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  • 💬 Personal AI tutor
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  • 🎧 Audio version included
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • ⚡ Short & focused
    2h 30m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Kotlin Android App Development: Build a Messaging Application
Skills demonstrated
✓
Behavioral pattern analysis
Foundational
1.2 hrs
✓
Decision-architecture frameworks
Proficient
1.4 hrs
✓
A/B test design
Proficient
1.7 hrs
✓
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Kotlin Android App Development: Build a Messaging Application
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Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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