AlgoCards: Code Interview Prep
Algorithm Flashcards & DSA
Free · Designed for iPad
Interview season is here. 390 problems with company-specific prep for Google, Meta, Citadel, Jane Street & more. Spaced repetition. Free.
Master coding interviews with 390 problems, company-specific prep lists, and spaced repetition — 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.
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Massive content update:
- 390 problems (up from 150) with full Python solutions
- 30 company-specific problem lists including Citadel, Jane Street, Two Sigma, Google, Meta, Amazon, and more
- Research-backed frequency ordering — problems sorted by how often each company actually asks them
- Trading firm OA problems: Stable Segments, Currency Arbitrage Detection, Order Book Implementation
- New algorithm patterns: Count Inversions, Josephus Problem, Maximum Drawdown, Continuous Subarrays
- All content is now free — no paywall, no ads
- Spaced repetition and weakness detection for all users
The developer, Ryan Hamby, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ryan Hamby
- Size
- 64.4 MB
- Category
- Education
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Infrequent
Contests
Contains
Advertising
- Copyright
- © 2025 Ryan Hamby