# AZ AI Certification Exam Prep vs Learn MERN Stack

The clearest difference is price: AZ AI Certification Exam Prep at Free against Learn MERN Stack's $3.99. Learn MERN Stack's advantage is rating (2.0 vs 1.0) and update cadence (every 4 months vs every 56 months). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

AZ AI Certification Exam Prep is free to download; Learn MERN Stack costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn MERN Stack holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

AZ AI Certification Exam Prep ships an update every 56 months, Learn MERN Stack every 4 months. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | AZ AI Certification Exam Prep | Learn MERN Stack |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/az-ai-certification-exam-prep/id1611614573/reviews) | **[2.0 (1 ratings)](https://appshunter.io/ios/app/learn-mern-stack-react-and-node/id1631792180/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 1 MB | 181 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [DjamgaTech Corp](https://appshunter.io/developer/969000181) | [Shahbaz Khan](https://appshunter.io/developer/1479963383) |

## What reviewers say

### AZ AI Certification Exam Prep

[App page](https://appshunter.io/ios/app/az-ai-certification-exam-prep/id1611614573)

Prepare for the Microsoft Azure AI-900 certification with this comprehensive study app. It offers practice questions, detailed answers, references, cheat sheets, and interview preparation for machine learning and AI fundamentals on Azure.

**Highlights:** AI-900 practice questions, Detailed answers and references, Machine learning basics and advanced topics, NLP and Computer Vision coverage, Scorecard and timer, Machine learning cheat sheets, Interview questions and answers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Learn MERN Stack

[App page](https://appshunter.io/ios/app/learn-mern-stack-react-and-node/id1631792180)

Master full-stack web development using the MERN stack. Learn MongoDB, Express.js, React, and Node.js through structured lessons, interactive projects, and AI-powered coding assistance. Progress from beginner to building production-ready applications.

**Highlights:** MERN stack curriculum, JavaScript fundamentals, Node.js and Express.js, MongoDB and Mongoose, React components and hooks, AI-powered coding tutor, Interactive projects and quizzes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AZ AI Certification Exam Prep free?

AZ AI Certification Exam Prep is free to download, with no in-app purchases.

### Is Learn MERN Stack free?

Learn MERN Stack costs $3.99, with no in-app purchases.

### Which has better reviews, AZ AI Certification Exam Prep or Learn MERN Stack?

Learn MERN Stack is rated higher. AZ AI Certification Exam Prep averages 1.0 out of 5 from 1 ratings, while Learn MERN Stack averages 2.0 from 1 ratings.

### Do AZ AI Certification Exam Prep or Learn MERN Stack have ads?

Neither AZ AI Certification Exam Prep nor Learn MERN Stack shows ads.

### Which is updated more often, AZ AI Certification Exam Prep or Learn MERN Stack?

AZ AI Certification Exam Prep ships an update every 56 months, and Learn MERN Stack every 4 months. Most recently, AZ AI Certification Exam Prep was updated on September 28, 2026 and Learn MERN Stack on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*