AlgoCards vs AlgoFox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AlgoCards
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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.
AlgoFox
This app offers bite-sized coding exercises focused on algorithms and data structures. Practice pattern recognition, debugging, and problem-solving skills in short, daily sessions to prepare for technical interviews.
- Bite-sized coding exercises
- Algorithm and DSA practice
- Pattern recognition training
- Mistake explanations
- Timed interview sessions
- Progress tracking
- Daily practice streaks
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AlgoFox helps you prepare for software engineering interviews with quick, focused practice on your phone. Topics include: • Arrays, linked lists, stacks, queues, trees, and graphs • Two pointers, sliding window, binary search, recursion, and dynamic programming • AI prompting, code generation, debugging, refactoring, and test creation • APIs, databases, caching, load balancing, message queues, and scaling Build streaks, earn XP, review mistakes, and track your progress. AlgoFox Pro unlocks all courses, unlimited practice, boss levels, and mistake review. Terms: https://algofox.app/terms Privacy: https://algofox.app/privacy
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Verdict
The clearest difference is in-app purchases: AlgoCards at none against AlgoFox's 2. AlgoFox's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. AlgoFox sells 2 in-app purchases, starting at $9.99 per month. AlgoCards asks for nothing beyond the download.
AlgoCards ships an update every 9 days, AlgoFox weekly. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.
| Parameter | AlgoCards | AlgoFox |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 9 days | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 61 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryan Hamby | FOX3 LLC |
In-app purchases
AlgoCards
No in-app purchases
AlgoFox
- AlgoFox Pro gói tháng3 Days trial$9.991 Month
- AlgoFox Pro gói năm3 Days trial$44.991 Year









