Comparison

Keijaoh Tutorials vs Learn Kotlin

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Keijaoh Tutorials

Access expert tutorials on programming, math, and business. Explore insightful blogs and academic discussions to deepen your understanding and stay current with your chosen fields. This app offers a comprehensive platform for continuous learning and personal growth.

Highlights
  • Expert tutorials on Swift and SwiftUI
  • Backend technology guidance
  • Calculus lessons
  • Business and Computer Science blogs
  • Discussions on academic papers
Features
Read full description

Introducing our comprehensive mobile app, designed to provide you with an immersive learning experience across various topics. Dive into our expert tutorials on Swift, SwiftUI, backend technologies, Calculus, and more, all tailored to help you master these subjects with ease. In addition to our educational content, you'll find insightful blogs covering Business, Computer Science, and even in-depth discussions on academic papers authored by our team. Enhance your knowledge and stay updated with our all-in-one app.

About

Learn Kotlin

Features
Read full description

Learn Kotlin from scratch — no experience needed. Bite-sized Kotlin lessons, a real code editor on your phone, and an AI mentor that answers your questions in seconds. Built for complete beginners, students and career switchers. WHY LEARN Kotlin? • Kotlin is an in-demand skill — a strong addition to any resume • Learn by doing: every lesson mixes short theory with hands-on practice • Build real foundations you can use in projects, work and interviews • Start from zero — every concept is explained in plain language WHAT YOU'LL LEARN • Kotlin fundamentals — the core concepts, step by step • The essential building blocks used in real-world Kotlin work • Practical techniques you can apply right away • Common mistakes — and how to avoid them • Hands-on exercises after every topic • Advanced topics to keep growing beyond the basics EVERYTHING YOU NEED TO LEARN Kotlin • AI Mentor — stuck on a concept or an error? Ask anything and get a clear answer in seconds • 100+ bite-sized lessons (5–10 minutes each) — built for real life, not lecture halls • Real code editor — write and run Kotlin code right on your phone • Quizzes and coding challenges after every topic to lock in what you learn • Weekly Code Challenge — compete with learners around the world • Certificate of completion — pass the final exam and prove your skills • Streaks, progress tracking and smart reminders to keep you consistent • Learn on the go — lessons load fast and keep working on flaky connections • App available in 22 languages WHO IT'S FOR • Complete beginners taking their first steps • Students who want extra practice alongside classes • Career switchers building job-ready skills • Anyone curious about Kotlin Part of CoddyKit — a family of 40+ coding apps trusted by 100,000+ learners worldwide. Free to start: your first course is free, with a daily AI Mentor allowance. Pro unlocks every course, removes ads and gives you unlimited AI Mentor. Download Learn Kotlin: Code & Build and write your first line of Kotlin today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.coddykit.com/terms/privacy-policy

Screenshots

Keijaoh Tutorials4 screens
Learn Kotlin4 screens

Verdict

The call

The clearest difference is in-app purchases: Keijaoh Tutorials at none against Learn Kotlin's 4. Keijaoh Tutorials also leads on ads (none vs shown). Learn Kotlin's advantage is update cadence (every 3 weeks vs every 6 months) and iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Learn Kotlin sells 4 in-app purchases, starting at $4.99 per 7 days. Keijaoh Tutorials asks for nothing beyond the download.

UpkeepUpdate frequency

Keijaoh Tutorials ships an update every 6 months, Learn Kotlin every 3 weeks. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 5 level
Keijaoh Tutorials versus Learn Kotlin: the parameters behind the verdict, then further details
ParameterKeijaoh TutorialsLearn Kotlin
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size11 MB71 MB
Age rating17+4+
DeveloperKeijaoh CampbellMEHMET CANKER (TR)

In-app purchases

None

Keijaoh Tutorials

No in-app purchases

4 purchases

Learn Kotlin

Subscriptions3
  • Weekly Subscription$4.997 Days
  • Monthly Subscription$6.991 Month
  • Yearly Subscription$24.991 Year
One-time1
  • Lifetime Subscription$59.99

Questions

Is Keijaoh Tutorials free?
Keijaoh Tutorials is free to download, with no in-app purchases.
Is Learn Kotlin free?
Learn Kotlin is free to download, with in-app purchases available.
Do Keijaoh Tutorials or Learn Kotlin have ads?
Learn Kotlin shows ads; Keijaoh Tutorials does not.
Which is updated more often, Keijaoh Tutorials or Learn Kotlin?
Keijaoh Tutorials ships an update every 6 months, and Learn Kotlin every 3 weeks. Most recently, Keijaoh Tutorials was updated on October 13, 2026 and Learn Kotlin on October 7, 2026.

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