DevPrep vs FlowLearn

Ace your iOS developer interview and keep your skills sharp. Hundreds of questions and hands-on coding tasks across 21 topics — the base is updated regularly: Swift, SwiftUI, Swift Concurrency (async/await, actors), Combine, memory & ARC, multithreading & GCD, UIKit, Auto Layout, architecture (MVVM, VIPER, Clean), Objective-C, algorithms & data structures, networking, testing and soft skills. WHAT'S INSIDE • Apple-docs-style answers with syntax-highlighted code • Hands-on coding tasks with full solutions: “predict the output”, “find the bug”, “implement it” • Junior / Middle / Senior and Legacy / Modern level tags — study exactly what you need • Progress tracking, a “learned” marker, a daily streak and goal • A spaced-repetition flashcard trainer and a “Hard” deck • Built-in search and an in-app reader for external materials • Light and dark themes • Full Russian & English — switch on the fly • Works offline We continuously update and expand the library of questions and tasks — new content arrives without an app update. Basic topics are free. Full access to all questions, tasks and materials unlocks with a subscription. SUBSCRIPTION Payment is charged to your Apple ID at confirmation of purchase. It auto-renews unless auto-renew is turned off at least 24 hours before the end of the current period. Manage your subscription in your Apple ID settings. Terms of use and the privacy policy are available in the app.

Go from “I want to learn this” to a clear path you can review before you begin. Start with a question—or sources you already trust—and FlowLearn builds a personal learning path around your goal. Add a topic, link, YouTube video with English captions, image containing readable text, PDF, text document, or your own notes. Then make the ideas stick through short lessons, active recall, quizzes, flashcards, and a visual knowledge map. BUILD A PATH AROUND YOUR GOAL Tell FlowLearn what you want to understand, your context, and how you prefer to learn. Review the proposed path before you begin. LEARN ACTIVELY Move through bite-size explanations, quizzes, and learning games for recall, logic, visual search, and sustained attention. With Screen Time access, Focus Zone can block apps or categories you choose until you complete your daily lesson goal. SEE YOUR KNOWLEDGE CONNECT Track streaks and XP, revisit lessons, and explore how ideas connect in your knowledge map. Sync progress with iCloud, share your profile, and learn alongside the community. AI-generated material can be incomplete or incorrect. FlowLearn is an educational aid, not a substitute for qualified professional advice; verify important information with trusted sources. FlowLearn Pro unlocks personal AI path creation, generated lessons, Mind Games, additional built-in course units, and Focus Zone app blocking. Pricing and trial eligibility are shown before purchase and may vary by region. Payment is charged to your Apple Account. Subscriptions renew unless canceled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Deleting FlowLearn does not cancel an active subscription. Terms of Use: https://flowearn.app/terms Privacy Policy: https://flowearn.app/privacy