Algo Demo vs LeetCode
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Algo Demo
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Algo Demo — Visualize Algorithms & Data Structures Designed for CS students, interview preppers, and educators, Algo Demo demystifies algorithms through interactive animations and step-by-step visualizations. Covered Topics: • Data Structures: Linked Lists, Binary Trees, Stacks, Hash Tables • Core Algorithms: Sorting, Two Pointers, Dynamic Programming, Binary Search Key Features: • All-New Progress Control: Our most powerful interactive upgrade yet! Drag a sleek progress bar to jump to any step of an algorithm in real-time. Perfect your understanding by replaying complex parts at your own pace. • Live Code Playback: Watch the code execute in perfect sync with the visualization. Key lines are highlighted as the algorithm runs, forging a clear connection between abstract logic and concrete implementation. • Smooth Animations: Break down each step of algorithm execution with crystal-clear visuals. • Interactive Playback: Adjust speed, pause, or rewind for deeper learning.
LeetCode
Practice coding challenges and prepare for technical interviews on the go. Discover company-specific questions, manage your practice lists, and track your progress. Stay updated with contests and daily quests to improve your skills.
- Search and discover company questions
- Practice coding challenges
- Manage practice lists
- Track personal progress
- Contest registration and calendar sync
- Daily challenges and quests
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One LeetCode a day keeps your reasoning in play. Introducing LeetCode for iOS and iPadOS. Enjoy LeetCoding right at your fingertips — jump in for quick practice, browse your collections, and stay on top of important events and progress. With LeetCode in the palm of your hand, you can easily: • Search and discover the latest company questions. • View and quickly practice your favorite challenges right in the palm of your hand. • Manage your lists or add to your wishlist to practice later. • Keep track of your personal progress with a rich profile view and widgets. • Stay notified and keep your streak alive — level up with new challenges and quests every day. • Register for contests and sync them to your calendar. Live Activities keep you updated on contest progress — so you never miss a moment. • And more content and features coming every month… Terms of Services: https://leetcode.com/terms/ Privacy Policy: https://leetcode.com/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: Algo Demo at none against LeetCode's 2. Algo Demo also leads on iOS requirement (13.0 vs 16.0). LeetCode's advantage is ads (none vs shown) and update cadence (fortnightly vs every 4 months). On price and device support 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. LeetCode sells 2 in-app purchases, starting at $35.00 per month. Algo Demo asks for nothing beyond the download.
Algo Demo ships an update every 4 months, LeetCode fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | Algo Demo | LeetCode |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (662 ratings) — better |
| Positive reviews | — | 44.2% of reviews |
| Number of ratings | — | 662 — better |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 36 MB | 110 MB |
| Age rating | 17+ | 4+ |
| Developer | zhuo zeng | LeetCode |
In-app purchases
Algo Demo
No in-app purchases
LeetCode
- LeetCode Premium Monthly$35.001 Month
- LeetCode Premium Yearly$159.001 Year









