Comparison

AlgoCards vs Algo Demo Pro

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

AlgoCards

Features
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Master coding interviews with 390 problems, company-specific prep lists, and spaced repetition โ€” 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.

About

Algo Demo Pro

Features
Read full description

Algo Demo Pro โ€” Visualize Algorithms & Data Structures Designed for learners who demand absolute focus and a complete experience. Retaining all the powerful features of the standard version, Algo Demo Pro removes all advertisements and unlocks every algorithm & advanced content by default, offering you a pure, unobstructed, and immersive learning environment. Covered Topics: โ€ข Data Structures: Linked Lists, Binary Trees, Stacks, Hash Tables โ€ข Core Algorithms: Sorting, Two Pointers, Dynamic Programming, Binary Search Pro Version Value: โ€ข Ad-Free Experience: Eliminate all distractions and focus purely on algorithmic logic. โ€ข All Content Unlocked: Every algorithm demonstration is available immediately upon installation, no strings attached. Key Interactive Features: โ€ข Precise Progress Control: Drag the sleek progress bar to jump to any step of an algorithm in real-time. โ€ข Live Code Playback: Code highlights in perfect sync with the visualization, linking logic to implementation. โ€ข Smooth Animations & Playback: Step-by-step breakdowns, speed control, pause, and rewind. Invest in efficient learning. Choose Pro for the ultimate algorithm visualization tool.

Screenshots

AlgoCards4 screens
Algo Demo Pro4 screens

Verdict

The call

The clearest difference is price: AlgoCards at Free against Algo Demo Pro's $2.99. AlgoCards also leads on update cadence (every 9 days vs every 4 months). Algo Demo Pro's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.6). On in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

AlgoCards is free to download; Algo Demo Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AlgoCards ships an update every 9 days, Algo Demo Pro every 4 months. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

Scorecard4 real differences ยท 2 level
AlgoCards versus Algo Demo Pro: the parameters behind the verdict, then further details
ParameterAlgoCardsAlgo Demo Pro
PriceFree โ€” better$2.99
Update frequencyEvery 9 days โ€” betterEvery 4 months
AdsYesNo โ€” better
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS15.613.0 โ€” better
Further details โ€” not scored
Size61 MB33 MB
Age rating4+12+
DeveloperRyan Hambyzhuo zeng

In-app purchases

None

AlgoCards

No in-app purchases

None

Algo Demo Pro

No in-app purchases

Questions

Is AlgoCards free?
AlgoCards is free to download, with no in-app purchases.
Is Algo Demo Pro free?
Algo Demo Pro costs $2.99, with no in-app purchases.
Do AlgoCards or Algo Demo Pro have ads?
AlgoCards shows ads; Algo Demo Pro does not.
Which is updated more often, AlgoCards or Algo Demo Pro?
AlgoCards ships an update every 9 days, and Algo Demo Pro every 4 months. Most recently, AlgoCards was updated on October 11, 2026 and Algo Demo Pro on October 6, 2026.

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