Comparison

AI vs CertLab

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

Head to head
About

AI

Features
Read full description

Azure AI Fundamentals (AI-901) Exam Prep - Pass Your Cert with 400+ Practice Questions Preparing for the AI-901 certification? AI-901 Exam Simulator gives you 400+ practice questions spanning both official exam domains - from responsible AI principles and Azure AI services to building real solutions with Foundry. The AI-901 exam (700/1000 passing score) replaces AI-900 with 40-60 questions in 45-60 minutes, testing your ability to identify AI workloads and implement AI solutions on Azure. Exam Domains Covered: Domain 1: AI Concepts and Capabilities (40-45%) - responsible AI principles, AI workloads, Azure AI services. Domain 2: Implement AI Solutions via Foundry (55-60%) - generative AI and multi-agent apps, text and speech, vision and Content Understanding, information extraction, Foundry SDK. Key Features: - 400+ High-Quality Questions - aligned to the April 2026 AI-901 study guide - Full-Length Timed Mock Exams - 40-60 questions, 45-60 minute simulation - Detailed Explanations - every answer linked to Azure AI and Foundry documentation - Flashcards - reinforce responsible AI principles, Azure AI services, and Foundry concepts - Progress Tracking - domain-level scores across both AI-901 skill areas Why Choose AI-901 Exam Simulator? - Full AI-901 coverage - responsible AI, Azure AI services, multi-agent apps, Content Understanding, and Foundry SDK - Domain 2 focus (55-60%) - scenario-based Foundry implementation questions across all 4 sub-areas - Affordable premium from only $3.99/month - Built for developers, IT professionals, and students starting their Azure AI career Subscription Pricing: - Monthly: $3.99 - Quarterly: $6.99 - Yearly: $19.99 Subscriptions are managed via your Apple ID and auto-renew unless canceled 24 hours before the period ends. No refunds for unused portions. Important Disclaimer: AI-901 Exam Simulator is an independent educational tool created by Exam Simulator. It is not affiliated, endorsed, or sponsored by Microsoft Corporation or any other certification body. All practice questions and content are developed independently for educational purposes and are not sourced from the official AI-901 exam. Download AI-901 Exam Simulator now and take the next step toward earning your Azure AI Fundamentals certification. Visit https://examsimulator.net for more details or contact us at support@examsimulator.net. Privacy Policy: https://examsimulator.net/privacy-policy Terms of Service: https://examsimulator.net/terms-of-service

About

CertLab

Features
Read full description

CertLab โ€” Certification Practice Stop jumping between tabs, videos, and scattered notes. CertLab puts your certification practice in one focused place so you can actually prepare, not just browse. Work through hundreds of exam-style questions, get instant feedback after each answer, and track your scores over time. Whether you have 10 minutes or an hour, CertLab fits your schedule. Practice your way Choose a full practice exam or a quick quiz with 10, 20, or 50 random questions. Shuffle the order to keep things fresh, or go straight through. Resume right where you left off if life gets in the way. Learn from every question Toggle instant feedback to see whether you got it right and why. Each question includes a detailed explanation so you understand the concept, not just the answer. Ask AI for help Stuck on a question? Copy the full question and all options with one tap, with the copy fuction on the top right, then paste it straight into your AI assistant of choice. Stay on track Set a daily reminder so practice becomes a habit, not an afterthought. Track your attempts and best scores to see how far you've come. Private by design No account. No sign up. Everything stays on your device. Currently available: Splunk Power User (SPLK-1002) More certifications coming soon.

Screenshots

AI4 screens
CertLab4 screens

Verdict

The call

The clearest difference is in-app purchases: CertLab at none against AI's 3. CertLab also leads on update cadence (every 2 days vs every 3 weeks). On price, ads, 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. AI sells 3 in-app purchases, starting at $3.99 per month. CertLab asks for nothing beyond the download.

UpkeepUpdate frequency

AI ships an update every 3 weeks, CertLab every 2 days. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

Scorecard2 real differences ยท 4 level
AI versus CertLab: the parameters behind the verdict, then further details
ParameterAICertLab
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 days โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.6 โ€” better16.4
Further details โ€” not scored
Size94 MB38 MB
Age rating4+4+
DeveloperNguyen Duy KhanhTenzin Negoen

In-app purchases

3 purchases

AI

Subscriptions3
  • Premium Monthly3 Days trial$3.991 Month
  • Premium Quarterly3 Days trial$6.993 Months
  • Premium Yearly$19.991 Year
None

CertLab

No in-app purchases

Questions

Is AI free?
AI is free to download, with in-app purchases available.
Is CertLab free?
CertLab is free to download, with no in-app purchases.
Do AI or CertLab have ads?
Neither AI nor CertLab shows ads.
Which is updated more often, AI or CertLab?
AI ships an update every 3 weeks, and CertLab every 2 days. Most recently, AI was updated on October 14, 2026 and CertLab on September 30, 2026.

Other comparisons