Comparison

AI ML Prep vs AI, ML & Data Cert Exam Prep

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

Head to head
About

AI ML Prep

Features
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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/

About

AI, ML & Data Cert Exam Prep

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Break into AI and data engineering - and prove it. AI & Data Cert Exam Prep is the first iOS app to bundle the industry's fastest-growing certifications with a full study system: questions, mock exams, flashcards, Reels, and hands-free audio, all offline. WHAT YOU GET • 66,584 practice questions, every one with a written explanation • Full-length, timed mock exams matched to each blueprint • 16,500 spaced-repetition flashcards • 3,300 swipeable Reels - bite-size concepts for fast review • Hands-free Audio Mode - learn while you commute or work out • 4,400 concept & glossary cards • Objective-weighted analytics that pinpoint weak areas • 100% offline after download EXAMS COVERED (one purchase unlocks all 11) • AWS Certified AI Practitioner (AIF-C01) - foundational AI/ML, generative AI, responsible AI, and AWS AI services. • AWS Certified Machine Learning Engineer – Associate (MLA-C01) - data prep, model development, deployment and orchestration, monitoring, and security. • Google Cloud Professional Data Engineer - design, build, and operationalize data-processing systems on GCP. • Databricks Certified Associate Developer for Apache Spark - Spark architecture, the DataFrame API, Spark SQL, and structured streaming. • Databricks Machine Learning Professional - experimentation, MLOps, and model deployment on Databricks. • SnowPro Core - Snowflake architecture, performance, data loading, protection, and sharing. • dbt Analytics Engineer - building, testing, and governing dbt models and transformations. • NVIDIA-Certified Associate: AI Infrastructure & Operations (NCA-AIIO) • NVIDIA-Certified Associate: Generative AI LLMs (NCA-GENL) • NVIDIA-Certified Associate: Generative AI Multimodal (NCA-GENM) • NVIDIA-Certified Professional: Generative AI (NCP-GENL) WHY THIS APP The AI and data hiring wave is here, but prep material is scattered across PDFs and paywalled courses. This app puts every exam in one place with a study system built for retention - drill questions, flip flashcards, swipe Reels, and listen on the go. Every question explains WHY, so concepts stick. HOW IT WORKS 1. Choose an exam and take a quick diagnostic to see where you stand. 2. Drill questions by domain and read the rationale on every one. 3. Reinforce with flashcards, Reels, and Audio Mode between sessions. 4. Take full timed mocks until you're consistently above passing. BUILT FOR THE REAL EXAM Every mock mirrors the official blueprint - question style, domain weighting, and timing - so exam day feels familiar. Detailed score reports break performance down by domain, so you always know what to review next. WHO IT'S FOR • Engineers and analysts moving into ML, GenAI, and data platforms • Cloud pros adding AWS, Google Cloud, Snowflake, Databricks, or NVIDIA credentials • Anyone future-proofing their career with AI and data skills TRY IT FREE 3 days of complete access - every exam, every feature. Then a single unlock covers the whole bundle; no per-exam paywalls. WHY LEARNERS CHOOSE US • One purchase unlocks all 11 exams • Study on iPhone, iPad, and Mac with progress synced across all three • Fully offline - no ads, no interruptions, no selling your data • Kept current with the latest exam objectives COMMON QUESTIONS Do I need a subscription? Start with 3 days of full access, then one unlock covers every exam - no per-exam fees. Does it work offline? Yes - download once and study with no signal. Is the content current? It tracks the latest published exam objectives. Get certified on the skills every employer wants. Download today. SUBSCRIPTION & LEGAL A subscription auto-renews unless canceled at least 24 hours before the period ends; your Apple ID is charged for renewal. Manage or cancel anytime in App Store settings. Privacy Policy: https://c3rt.com/privacy/ Terms of Use (EULA): https://c3rt.com/terms-of-service/

Screenshots

AI ML Prep4 screens
AI, ML & Data Cert Exam Prep4 screens

Verdict

The call

AI ML Prep and AI, ML & Data Cert Exam Prep are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. AI ML Prep sells 2 in-app purchases, starting at $9.99 per month and AI, ML & Data Cert Exam Prep sells 4 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
AI ML Prep versus AI, ML & Data Cert Exam Prep: the parameters behind the verdict, then further details
ParameterAI ML PrepAI, ML & Data Cert Exam Prep
PriceFreeFree
Update frequency—Daily
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better18
Further details — not scored
Size5 MB16 MB
Age rating4+4+
DeveloperKe ZhuSunny Dasari

In-app purchases

2 purchases

AI ML Prep

Subscriptions2
  • AI ML Prep Pro - Monthly$9.991 Month
  • AI ML Prep Pro - Yearly$99.991 Year
4 purchases

AI, ML & Data Cert Exam Prep

Subscriptions4
  • AI, ML & Data Cert Monthly$19.991 Month
  • AI, ML & Data Cert 3 Months$39.993 Months
  • AI, ML & Data Cert 6 Months$39.996 Months
Show 1 more
  • AI, ML & Data Cert Yearly$99.991 Year

Questions

Is AI ML Prep free?
AI ML Prep is free to download, with in-app purchases available.
Is AI, ML & Data Cert Exam Prep free?
AI, ML & Data Cert Exam Prep is free to download, with in-app purchases available.
Do AI ML Prep or AI, ML & Data Cert Exam Prep have ads?
Neither AI ML Prep nor AI, ML & Data Cert Exam Prep shows ads.

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