AI ML Prep vs AlgoLens
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
AI ML Prep
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Ace your AI and Machine Learning system design interviews with 226 questions used at top tech companies, including Google, Meta, Amazon, and more. Each question includes a structured expert answer, skill tags, and a 5-dimension rubric so you know exactly what interviewers look for: - Problem Framing - Technical Depth - System Thinking - Communication - Tradeoff Awareness Domains covered: - Recommendation Systems - NLP, LLMs, and Generative AI - Search and Ranking - Computer Vision - MLOps and Infrastructure - Fraud and Anomaly Detection - Ads and Click Prediction - Reinforcement Learning and Decision Systems - AI Agents and Content Safety How it works: 1. Get a daily question and build your streak 2. Think through your answer, then tap to reveal the expert answer 3. Record your answer with voice and score yourself on each rubric dimension 4. Mark questions as mastered as you improve Mock Interviews (Pro): Simulate a real ML system design interview with: - Quick Fire (15 minutes) - Standard Round (45 minutes) - Full Loop (90 minutes) You can focus on a specific domain or choose a random mix. Free tier: The first 4 easy questions in each domain are free. No time limit and no account required. Pro subscription: Unlock all 226 questions across all difficulty levels, plus: - Mock interviews - Company-specific filters - Voice practice recording Monthly and yearly plans are available. Built for ML engineers, data scientists, AI/LLM engineers, and computer science students preparing for FAANG and AI-first companies. Privacy Policy: https://lemon-tea-ai.github.io/aiml-interview-prep-legal/privacy/ Terms and Conditions: https://lemon-tea-ai.github.io/aiml-interview-prep-legal/terms/
AlgoLens
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AlgoLens teaches coding patterns the way they actually click ā through real-world stories, interactive visualizers, and guided practice. Instead of memorizing abstract algorithms, see why and where each pattern is used in real software systems: ⢠Fraud detection ā Sliding Window ⢠Duplicate payments ā HashMap ⢠Undo / Redo ā Stack ⢠Recently Played ā Arrays ⢠Friends of friends ā Graph BFS ⢠Calendar conflicts ā Merge Intervals Eight pattern paths so far: ⢠Arrays ⢠HashMaps ⢠Two Pointers ⢠Sliding Window ⢠Stack & Queue ⢠Trees ⢠Graph Basics ⢠Merge Intervals Each lesson includes: ⢠A real-world story that anchors the pattern in memory ⢠An interactive visualizer ā step through, play, watch the work happen ⢠Guided practice problems with explanations ⢠An interview-ready breakdown with time/space complexity, vs. brute force, and a Swift code sample in a syntax-highlighted editor Practice mode adds three coding game types: ⢠Fill in the blanks ā tap a token, drop it into the right slot ⢠Sort the code ā shuffled lines, tap two to swap them into order ⢠Find the bug ā read the function, tap the line that doesn't match the title Stack streaks, earn XP, and filter puzzles by the companies that ask similar questions in interviews ā Google, Meta, Apple, Amazon, Microsoft. Built for mobile-first learning. iPhone-sized, dark code editor styling, short focused lessons designed for the in-between moments. Understand patterns visually. Remember them through stories. Apply them like real engineers.
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Verdict
The clearest difference is in-app purchases: AlgoLens at none against AI ML Prep's 2. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. AI ML Prep sells 2 in-app purchases, starting at $9.99 per month. AlgoLens asks for nothing beyond the download.
| Parameter | AI ML Prep | AlgoLens |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 17.0 ā better | 17.6 |
| Further details ā not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ke Zhu | Nitesh Tak |
In-app purchases
AI ML Prep
- AI ML Prep Pro - Monthly$9.991 Month
- AI ML Prep Pro - Yearly$99.991 Year
AlgoLens
No in-app purchases
Questions
Is AI ML Prep free?
Is AlgoLens free?
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