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K8s Guide is Now on iOS and Android

K8s Guide is a complete study companion for the five Kubernetes and Cloud Native certifications: CKA, CKAD, CKS, KCNA, and KCSA. Every lesson, every practice question, every certification track - in one app, on the platform you actually use. iOS is available now; Android is in closed beta.

Why It's Different

Most exam-prep apps are a static pile of flashcards. K8s Guide adapts to you:

  • An adaptive quiz engine weights questions toward whatever you're actually getting wrong, so weak areas resurface more often instead of drilling what you already know.
  • A mastery engine blends quiz accuracy with lesson completion into a single readiness score per certification, so you always know what to study next - not just what you've already covered.

What's Included

  • All 5 certifications, fully built out - CKA, CKAD, CKS, KCNA, and KCSA, with 600+ practice questions and 150+ in-depth lessons across 30 exam domains
  • Adaptive quizzing in Study mode (instant feedback and explanations) or Test mode (full exam simulation, results at the end)
  • A mastery dashboard per certification: accuracy, lesson coverage, readiness, and weak-domain call-outs
  • Bookmark any lesson or question for quick review later, synced across your devices
  • Home Screen widgets showing your streak, active certification progress, and a rotating Kubernetes tidbit
  • Optional local study reminders, timed to your own schedule
  • Kubestronaut badge tracking via your public Credly profile (entirely optional)

Get the App

iOS

Available now, with progress synced through your own private iCloud account.

K8s Guide home screen showing Pick Up Where You Left Off and all 5 certification tracks: KCNA, KCSA, CKAD, CKA, and CKS K8s Guide Study mode showing a multiple-choice question with instant feedback and a detailed explanation K8s Guide Saved screen showing bookmarked lessons grouped by topic K8s Guide Settings screen showing configurable study reminders and iCloud sync status

Android -- Closed Beta

The Android build has the same lessons, quizzes, and mastery tracking as iOS, currently in closed beta ahead of a full Google Play launch.

K8s Guide Android home screen with Start a streak today, Daily 5, and Explore the Guide sections K8s Guide Android Guide screen showing certification domains to study K8s Guide Android lesson screen with detailed Kubernetes explanations K8s Guide Android Certifications screen listing KCNA, KCSA, CKAD, CKA, and CKS K8s Guide Android quiz screen with a multiple-choice question and instant feedback

Want in? Email your Gmail address to aaron@braundmeier.com and I'll add you to the closed-beta testers list on Google Play.

Built Differently, on Purpose

There's no account to create, no login, and no data collection of any kind. Your study data lives in your own iCloud account (or, on Android, on-device) and nowhere else.

Kubernetes itself is open source and built on the idea that knowledge should be open to everyone. This app is built on the same idea.

Whether you're chasing your first certification or going for the full Kubestronaut set, K8s Guide is built to get you there.