• iOS and AI dev news feed: today's highlights in short, with a link to the original and related challenges • Notifications for news and new content, each can be turned off in Profile • AI basics for developers: how LLMs work, tokens, agents and MCP • On Mac, "Write the code" challenges run right on your computer • Fixed: the tab bar no longer covers text fields

New "AI-assisted development" section — build iOS apps with AI faster and with confidence: • Review AI-generated code: leaks, threading, Swift 6 — spot where the assistant went wrong • "Is this API real?" — tell made-up and deprecated APIs from real ones • Prompts and context: get code that fits your project the first time • Theory and ready-made rule templates for AI agents — copy into your project in one tap • AI in interviews: where such rounds already exist and what they look for Also: • Company prep: more recent interview questions — and you can share your own • "Spotted a mistake?" — report an inaccuracy in a challenge or article; fixes arrive without an app update • New articles on SwiftUI, testing, networking, patterns and the SDK

A major Practice update: • 800+ challenges and new topics: Swift basics, OOP, databases, Objective-C, iOS SDK • New formats: fill in the blank, will it crash?, estimate the complexity, select all that apply • A challenge catalog with filters and Easy / Medium / Hard difficulty, hints, bookmarks and notes • Company prep: interview stages at 24 tech companies, what candidates were asked, and a day-by-day plan to your interview date with reminders • 30-minute mock interviews — general or focused on a specific company's topics • Mobile system design: 20 cases with step-by-step walkthroughs • Behavioral interviews: questions, your own STAR stories and timed drills • Weekly challenge, activity calendar and a shareable progress card • 15 topic tracks • Full offline mode: all content works without internet

New in DevPrep — Practice: challenges like in a real interview, checked instantly. • Four formats: What does it print, Find the bug, Assemble the code and Pick the fix — with an explanation after every answer. • A personal feed: the next challenge targets your weakest topics, just above your current level. Mistakes come back for review. • A skill rating for every topic and a skill profile. • Tracks — short sets of challenges on one topic. • The Puzzle of the day on Home is now interactive and picked for you. • A new floating tab bar.

DevPrep now plans your prep for every day: • Today: what to review, what to learn next, a daily puzzle and your weak spots. • Junior / Middle / Senior level — the library and the plan adapt to you. • A prep roadmap with must-know checklists for every level. • Trainer: answers with code, missed cards come back in the same session, a summary. • 58 tasks from real interviews and “what does it print” puzzles. • The whole library rewritten for Swift 6 and iOS 26, with code examples. • Daily reminders and progress sync via iCloud. • Optimized for iPhone Duo and iPad.

A major update! A brand-new Apple-docs-style design with light & dark themes. 290+ questions and coding tasks, Junior/Middle/Senior & Legacy/Modern tags, a spaced-repetition trainer, an in-app reader. Russian & English on the fly.

Improved translation to other languages New feature are coming - mentoring!

Added Membership

Added Authorization feature

Fixed issues with UI and added Search Feature

Localization update