PocketDSA vs DATARAKU

Crack your coding interview - 3 questions a day, 10 minutes, zero burnout. PocketDSA is built for engineers and CS students who want to land offers at Google, Meta, Amazon, Apple, and Microsoft — without the overwhelm of grinding 300+ LeetCode problems at once. — — — HOW IT WORKS Every day, you get 3 carefully curated DSA questions. You solve them. You move on. Over weeks, you build real interview readiness through consistency — not cramming. — — — WHAT YOU GET - Daily 3-Question Routine — Finish in ~10 minutes. Build a streak. Stay sharp without burning out. - Company Packs — Practice with actual interview questions from Google, Meta, Amazon, Apple, Microsoft and more. - AI Readiness Score — After each session, get a concise score and actionable feedback on exactly what to improve next. - Progress Tracking — See your mastery, weak spots, streaks, and improvement over time. - Privacy First — We don't sell your data. Ever. — — — WHY DAILY PRACTICE BEATS CRAMMING Research is clear: spaced repetition and consistent short sessions outperform marathon study sessions for retention and recall. PocketDSA is built around this principle — small daily progress compounds into real interview confidence. — — — PERFECT FOR - CS students preparing for internship or new grad interviews - Engineers targeting FAANG or top tech companies - Anyone who started LeetCode, burned out, and wants a sustainable approach - Busy professionals who only have 10–15 minutes a day — — — Start today. 3 questions. 10 minutes. One step closer to your dream job. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

An educational visualization app that lets you UNDERSTAND data structures by watching them - not by reading. Abstract concepts like stacks, queues, trees, and hash tables come alive as animations where the structure itself deforms in response to your operations. [ Basics - 4 structures ] - Stack (LIFO) - Feel "last in, first out" through stacking motion - Queue (FIFO) - Watch the entry and exit ends of a queue - Array - Visualize random access and the shifting of elements on insert / delete - Linked List - Nodes connected by arrows, rewired on insert and delete [ Advanced - 4 structures ] - Binary Search Tree - Values drop into place after branching left or right by comparison - Heap - Up-heap and down-heap motion in a complete binary tree - Hash Table - Keys travel through a hash function and land in a bucket - Graph - Nodes and edges showing adjacency [ Features ] - Every operation animates as a continuous deformation (no instant teleporting) - Operation log to review the meaning of each step - Each structure includes complexity notes (access / search / insert / delete), pros and cons, and real-world usage examples - Ads are never shown while an animation is playing - designed to preserve focus - Universal app for iPhone and iPad - Japanese and English (follows OS language) [ Who is this for ] - Students learning programming for the first time - Anyone preparing for IT exams - Engineers who want to re-grasp data structures visually - Curious minds who love watching things move [ Companion to ARURAKU ] The second information-systems title of the Raku Series, sibling to ARURAKU (algorithm visualization). The two apps cross-link, so the heap screen here links to ARURAKU's heap sort, and the graph screen here links to ARURAKU's BFS / DFS. Learn the "motion of computation" and the "structures that carry it" side by side. [ Note on pricing ] This app is completely free with no in-app purchases or subscriptions. To support development and maintenance we display Google AdMob banner and interstitial advertising. Ads are never shown while an animation is playing.