Comparison

AlgoCards vs Codelingo

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

Head to head
About

AlgoCards

Features
Read full description

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.

About

Codelingo

Prepare for coding interviews with a structured, gamified roadmap. Practice daily with bite-sized lessons and track your progress to build confidence for technical rounds.

Highlights
  • Guided roadmap for DSA
  • Interview-style problems
  • Bite-sized mini sessions
  • Progress tracking
  • Gamified motivation system
  • Reinforce topics
Read full description

Get interview-ready, one lesson at a time. Codelingo helps you prepare for coding interviews with a guided roadmap built for consistency, confidence, and real progress. Whether you are starting with fundamentals or polishing for technical rounds, you can practice daily in short, structured lessons that fit your schedule. Why candidates use Codelingo for interview prep: - Guided roadmap that breaks data structures and algorithms into manageable lessons - Interview-style problems that simulate real technical interview thinking - Bite-sized mini sessions so you can study even on busy days - Progress tracking to keep your momentum and spot what to review - Hearts/streak-style motivation to stay consistent until interview day Train smarter, not longer: - Build core DSA intuition with step-by-step concepts and practice - Strengthen pattern recognition for common interview question types - Revisit lessons and replay topics you want to reinforce - Keep your prep routine going with a clear next step every time you open the app If your goal is to walk into interviews feeling prepared and confident, Codelingo gives you a practical daily system to get there. Terms https://www.codelingo.pro/terms

Screenshots

AlgoCards4 screens
Codelingo4 screens

Verdict

The call

The clearest difference is in-app purchases: AlgoCards at none against Codelingo's 2. Codelingo's advantage is ads (none vs shown) and update cadence (every 2 days vs every 9 days). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Codelingo sells 2 in-app purchases, starting at $12.99 per month. AlgoCards asks for nothing beyond the download.

UpkeepUpdate frequency

AlgoCards ships an update every 9 days, Codelingo every 2 days. The most recent releases landed on September 24, 2026 and July 6, 2026 respectively.

Scorecard3 real differences · 7 level
AlgoCards versus Codelingo: the parameters behind the verdict, then further details
ParameterAlgoCardsCodelingo
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 9 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size61 MB52 MB
Age rating4+4+
DeveloperRyan HambyRian Corcino

In-app purchases

None

AlgoCards

No in-app purchases

2 purchases

Codelingo

Subscriptions2
  • Codelingo Pro Monthly14 Days trial$12.991 Month
  • Codelingo Pro Yearly1 Month trial$119.991 Year

Questions

Is AlgoCards free?
AlgoCards is free to download, with no in-app purchases.
Is Codelingo free?
Codelingo is free to download, with in-app purchases available.
Do AlgoCards or Codelingo have ads?
AlgoCards shows ads; Codelingo does not.
Which is updated more often, AlgoCards or Codelingo?
AlgoCards ships an update every 9 days, and Codelingo every 2 days. Most recently, AlgoCards was updated on September 24, 2026 and Codelingo on July 6, 2026.

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