DistroLearn vs Graphica

The rules of software engineering just changed. AI coding agents like Claude Code, Copilot, and Cursor are writing the code. But the engineers who thrive in this new world aren't the ones who type the fastest — they're the ones who deeply understand distributed systems, data structures, and computer science fundamentals well enough to guide AI in the right direction, catch its mistakes, and make sound architectural decisions. DistroLearn exists for exactly this moment. LEARN WHAT ACTUALLY MATTERS DistroLearn teaches the CS fundamentals that separate great engineers from the rest: replication, consensus algorithms, distributed transactions, storage engines, stream processing, and core data structures — the concepts behind every system you'll ever design or review. Content is drawn from Designing Data-Intensive Applications (Martin Kleppmann) and classic CS curriculum, broken into bite-sized concepts your brain can actually retain. ADAPTS TO YOU DistroLearn starts by understanding your current skill level and builds a personalised learning plan around it. As you learn, the SM-2 spaced repetition engine tracks exactly what you know and what you don't — automatically scheduling the right concepts at the right time to maximise long-term retention. You never waste time reviewing what you already know. Every session moves you forward. TWO MODES, ONE GOAL Study Mode A visual guide walks you through each concept before you're tested. See how Raft elections work, how LSM-trees write data, how distributed locks fail — with animations and clear explanations that build real intuition, not just surface knowledge. Game Mode Learning sticks when it's active. Validate and reinforce your understanding through: • Flash Cards — SM-2 spaced repetition with Again / Hard / Good / Easy ratings • Viz Quiz — Watch a distributed system scenario unfold, then answer what happened • Puzzles — Sequence ordering, pattern matching, and fill-in-the-blank challenges • Drag & Drop — Arrange concepts to demonstrate your understanding BUILT FOR SERIOUS LEARNERS • XP, levels, streaks & daily missions keep momentum going • Topic mastery tracking shows exactly where you stand • Full offline support — study on the subway, sync when connected • SM-2 algorithm adapts difficulty automatically per concept WHO IT'S FOR → Engineers preparing for staff or principal-level system design interviews → CS students supplementing coursework with active recall → Working engineers who want to stay sharp as AI changes the game → Anyone who wants to understand the systems that power the modern world In the age of AI, the engineer who understands why a system is designed a certain way will always outperform the one who can only implement what they're told. Start building that understanding today.

Graphica turns abstract graph theory into something you can actually see. Build your own graphs or load sample ones, then watch nine classic algorithms run step by step — from breadth-first and depth-first search to Dijkstra's shortest path and minimum spanning tree algorithms like Kruskal's and Prim's. FEATURES • 9 graph algorithms, visualized step by step • Pinch-to-zoom canvas for graphs of any size • Synchronized pseudocode panel — see exactly which line is executing • Ready-made sample graphs to explore immediately • Build and edit your own custom graphs • Fully native SwiftUI, built for iOS PRIVACY FIRST Graphica works completely offline. No account, no ads, no analytics, no tracking — your data never leaves your device. Whether you're a computer science student preparing for exams, a developer brushing up before technical interviews, or simply curious how these algorithms work, Graphica makes graph theory click.