Coding Interview vs Sharpen Algorithms
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Coding Interview
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Algo Mind turns abstract algorithms into something you can see. Every lesson pairs a step-by-step animated visualization with synced, highlighted code โ you watch pointers move, trees grow, and tables fill in until the idea actually clicks. Stop memorizing solutions; learn the patterns behind them. WATCH ALGORITHMS THINK โข 164 classic problems fully animated โ play, pause, and step through at your own pace โข Code highlighted in sync with the animation, line by line โข A live memory view shows variables, pointers, and call frames as they change โข Arrays, hash maps, linked lists, stacks, queues, binary trees, tries, heaps, graphs, matrices, DP tables, recursion stacks, sliding windows, and bit operations โ one consistent visual language 1,576 PROBLEMS DEEP โข The full interview canon, from Two Sum to hard dynamic programming โข Solutions in four languages: Python, Java, Kotlin, and C++ โข Plain-language explanations, worked examples, and time/space complexity for every problem โข Filter by topic, difficulty, company, or your bookmarks โ and track every solve A CLEAR PATH โข Eight chapters from Foundations to interview-ready, picking up exactly where you left off โข 21 animated cheatsheets with nearly 500 animated steps and predict-the-next-step quizzes โ perfect for a fast review the night before an interview PRACTICE THAT STICKS โข Quick 5, Daily Mix, weak-spot review, or build your own session by topic, difficulty, and company โข Three question types: order the steps, true/false concept checks, and 176 fill-in-the-blank code puzzles โข Timed Rank Mode for when you want a little pressure STAY ON TRACK โข Daily streaks that count any learning activity โข XP and per-topic progress tracking โข Bookmarks and optional study reminders โข Full dark mode โข Core lessons work offline โข No ads, ever START TODAY A selection of sample problems, puzzles, and cheatsheets is free. An optional Algo Mind Premium subscription unlocks the full library. Subscriptions renew automatically and can be managed in your App Store account settings. Privacy Policy: https://www.algomind.app/privacy.html Terms of Use: https://www.algomind.app/terms.html
Sharpen Algorithms
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Algorithms click when you build them yourself. Pick a problem, arrange the building blocks in the right order, and prove you understand the logic before you see the solution. Three tiers of difficulty push you from concepts to pseudocode to real code. 75 problems across Arrays, Linked Lists, Trees, Graphs, Dynamic Programming, and more. Stop grinding. Start understanding.
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Verdict
The clearest difference is in-app purchases: Sharpen Algorithms at none against Coding Interview's 2. Sharpen Algorithms also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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
Both are free to download. Coding Interview sells 2 in-app purchases, starting at $29.99 per month. Sharpen Algorithms asks for nothing beyond the download.
Coding Interview ships an update weekly, Sharpen Algorithms fortnightly. The most recent releases landed on October 11, 2026 and September 28, 2026 respectively.
| Parameter | Coding Interview | Sharpen Algorithms |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly โ better | Fortnightly |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 16.0 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 90 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Mooshuroi Ltd | Ivan Silvero |
In-app purchases
Coding Interview
- AlgoMind Pro Monthly$29.991 Month
- AlgoMind Pro Annual$89.991 Year
Sharpen Algorithms
No in-app purchases
Questions
Is Coding Interview free?
Is Sharpen Algorithms free?
Do Coding Interview or Sharpen Algorithms have ads?
Which is updated more often, Coding Interview or Sharpen Algorithms?
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