LeetCards vs DATARAKU

LeetCards is the ultimate tool for mastering Leetcode questions through efficient and effective study techniques. Our app utilizes spaced repetition to help you learn new data structures and algorithms (DSA) concepts every day. Whether you are a beginner or an advanced coder, LeetCards is designed to optimize your learning process, ensuring you spend the right amount of time on each problem. Features: - Spaced Repetition: Learn and retain DSA concepts effectively with our scientifically-backed study method. - Curated Problem Sets: Access popular problem sets like Grind 75, Blind 75, and Neet 150. - Progress Tracking: Monitor your study streaks, cards studied, and XP gained. - Custom Notes: Create and save your own notes for each problem to aid your understanding. - Leaderboard: Compete with peers and track your ranking. Subscription/In-App Purchase Information: Title: LeetCards Pro Length of Membership: Lifetime, Monthly, Yearly Price: $89/lifetime, $59/year, $9/month Benefits: Unlock all premium problem sets, Unlimited note-taking, Progress tracking Privacy Policy: https://leetcards.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Ace your coding interviews and land your dream job with LeetCards. Download now and start your journey to becoming a coding expert!

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.