AlgoCards vs Java Data Structures Pro
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
AlgoCards
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Master coding interviews with 390 problems, company-specific prep lists, and spaced repetition ā completely free. The only app with dedicated trading firm and quant interview prep. Practice the exact problems asked at Google, Meta, Amazon, Citadel, Jane Street, Two Sigma, Goldman Sachs, and 20+ more companies. WHAT'S INSIDE: - 390 curated problems with detailed Python solutions - Company-specific problem lists for 30+ companies - SM-2 spaced repetition for optimal review scheduling - Flashcard mode for on-the-go review - Algorithm pattern cheat sheets with code templates - Weakness detection that adapts to your performance COMPANY-SPECIFIC PREP: Filter problems by company and see what they actually ask. Coverage includes: Trading Firms: Citadel, Citadel Securities, Jane Street, Two Sigma, Jump Trading, Hudson River Trading, IMC, DE Shaw, SIG, Virtu, Point72, Millennium FAANG & Big Tech: Google, Meta, Amazon, Apple, Microsoft, Netflix, Uber, Airbnb, LinkedIn, Stripe, TikTok, Databricks, Nvidia, OpenAI, Palantir, and more ALGORITHM PATTERNS: - Arrays & Hashing - Two Pointers & Sliding Window - Binary Search - Stack & Queue - Linked Lists - Trees & Tries - Graphs & BFS/DFS - Dynamic Programming - Greedy - Heaps & Priority Queues - Backtracking SMART REVIEW SYSTEM: 1. Study problems in flashcard or detail mode 2. Rate your confidence after each problem 3. AlgoCards schedules your next review at the scientifically optimal interval 4. Weakness detection identifies your weak patterns and prioritizes them 5. Build lasting pattern recognition, not temporary memorization WHO IT'S FOR: - Software engineers prepping for FAANG and Big Tech - Quant developers targeting trading firms - CS students preparing for internship interviews - Career switchers learning algorithms and data structures 100% FREE. No paywall. No ads. No subscriptions. Every problem, every solution, every feature. Download AlgoCards and prep smarter.
Java Data Structures Pro
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Master Data Structures and Algorithms using Java. Learn Data Structure and Algorithm concepts with our comprehensive tutorial app. Perfect for beginners starting their coding journey and developers preparing for technical interviews. All examples use Java. Available in 7 Languages: ⢠English, French, German, Italian, Portuguese, Russian, and Spanish ā study in your native language! What You'll Learn: ⢠Algorithm fundamentals and complexity analysis ⢠Arrays, strings, linked lists, stacks, and queues ⢠Hash tables, sets, trees, and graphs ⢠Sorting algorithms: insertion, merge, and quicksort ⢠Graph algorithms: BFS, DFS, Dijkstra's, and Prim's ⢠Dynamic programming, greedy algorithms, and backtracking Complete Learning Experience: ⢠31 structured chapters from beginner to advanced ⢠Step-by-step tutorials with clear explanations ⢠Complete, runnable Java code examples ⢠Interactive quiz questions to test your knowledge User-Friendly Features: ⢠Dark and light theme options ⢠Offline learning - no internet required ⢠Search functionality across all content ⢠Bookmark important topics (favorites) ⢠Clean, distraction-free interface Perfect for: ⢠Complete beginners with no prior DSA experience ⢠Students preparing for coding interviews ⢠Computer science students learning algorithms ⢠Developers strengthening their problem-solving skills ⢠Self-learners building strong programming foundations Start your DSA mastery journey today - from basic concepts to interview-ready problem solving!
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Verdict
The clearest difference is price: AlgoCards at Free against Java Data Structures Pro's $4.99. AlgoCards also leads on update cadence (every 9 days vs every 4 months). Java Data Structures Pro's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
AlgoCards is free to download; Java Data Structures Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AlgoCards ships an update every 9 days, Java Data Structures Pro every 4 months. The most recent releases landed on September 8, 2026 and September 16, 2026 respectively.
| Parameter | AlgoCards | Java Data Structures Pro |
|---|---|---|
| Price | Free ā better | $4.99 |
| Update frequency | Every 9 days ā better | Every 4 months |
| Ads | Yes | No ā better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 15.6 ā better | 16.0 |
| Further details ā not scored | ||
| Size | 61 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Hamby | ALG Software Lab |
In-app purchases
AlgoCards
No in-app purchases
Java Data Structures Pro
No in-app purchases
Questions
Is AlgoCards free?
Is Java Data Structures Pro free?
Do AlgoCards or Java Data Structures Pro have ads?
Which is updated more often, AlgoCards or Java Data Structures Pro?
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