SD Primer vs SwipeDrill

Think like a staff engineer — five minutes a day. SD Primer turns system design mastery into a daily habit. Answer today's questions, debug a broken architecture with your hands, and build the instincts that tech interviews (and real jobs) demand. YOUR DAILY RITUAL • Daily Quiz — five sharp multiple-choice questions on scalability, databases, caching, queues, and trade-offs, with clear explanations for every answer • Focus Practice — we detect your weakest topics and serve extra reps exactly where you need them • Streaks, XP, and levels that make consistency effortless HANDS-ON ARCHITECTURE LABS Don't just read about system design — fix it. Each lab drops you into a live incident: drag components onto the canvas, wire the fix, defend your reasoning, and get scored with strengths and trade-offs. LEARN AI & ML FROM FIRST PRINCIPLES A structured 64-lesson course, one daily read at a time: from the origins of AI through neural networks, transformers, and how to actually use LLMs well — written for software engineers, no math degree required. AND EVERY DAY • Coding pattern drills — name the algorithm behind the problem • Workplace mastery lessons — the soft skills that get engineers promoted • Curated engineering news and daily tips • Your progress, visualized: topic strength, consistency calendar, achievements SD PRIMER PRO Unlock custom quizzes, labs, and pattern sessions tuned to your goals, plus higher daily limits. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the period; manage anytime in your App Store account settings. Privacy Policy: https://sdprimer.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Start today. Your future self at the whiteboard will thank you.

K8s has a steep learning curve. This app flattens it. SwipeDrill: K8s turns the official Kubernetes documentation into daily swipe quizzes. Pods, Services, Deployments - mastered one card at a time, at your own pace, wherever you are. HOW IT WORKS Each card shows a statement about Kubernetes behavior or concepts. Swipe right if it's true. Swipe left if it's false. Instant explanation tells you exactly why, building real understanding, not just memorization. WHAT YOU'LL MASTER - Kubernetes Basics: architecture, control plane, and kubectl - Pods: lifecycle, spec, probes, and multi-container patterns - Deployments: rollouts, rollbacks, scaling, and strategies - Services: ClusterIP, NodePort, LoadBalancer, and Ingress - ConfigMaps and Secrets: configuration and sensitive data - Storage: PersistentVolumes, PVCs, and StorageClasses - Networking: CNI, DNS, Network Policies, and service mesh - Troubleshooting: debugging pods, events, and cluster issues 800+ questions. Sourced from official Kubernetes documentation. WHO THIS IS FOR - DevOps and platform engineers managing clusters - Developers deploying to Kubernetes for the first time - Engineers preparing for CKA, CKAD, or CKS exams - SREs who want sharper Kubernetes fundamentals - Anyone surviving on-call with a K8s cluster PREMIUM FEATURES Upgrade once. Use forever. - Sequential Mode: work through all questions in order - Bookmarks: save tricky questions and review them later - Detailed Stats: track accuracy and progress per category - No Ads: completely ad-free experience STUDY SMARTER - Daily Goal tracker: build a consistent study habit - Streak counter: keep your momentum going - Review Mode: replay only the questions you got wrong - Today's Command: a new featured concept every day - Works offline: questions bundled in the app A NOTE ON CONTENT All questions are based on official Kubernetes documentation. While we strive for accuracy, content may occasionally contain errors or reflect outdated information. Always verify critical details against the latest official sources. Own your cluster. Download SwipeDrill: K8s today.