# AZ AI Certification Exam Prep vs C# Data Structures & Algo Pro

The clearest difference is price: AZ AI Certification Exam Prep at Free against C# Data Structures & Algo Pro's $4.99. C# Data Structures & Algo Pro's advantage is update cadence (every 3 months vs every 28 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

AZ AI Certification Exam Prep is free to download; C# Data Structures & Algo Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AZ AI Certification Exam Prep ships an update every 28 months, C# Data Structures & Algo Pro every 3 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | AZ AI Certification Exam Prep | C# Data Structures & Algo Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/az-ai-certification-exam-prep/id1611614573/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 1 MB | 19 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [DjamgaTech Corp](https://appshunter.io/developer/969000181) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## 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


### C# Data Structures & Algo Pro

[App page](https://appshunter.io/ios/app/c-data-structures-and-algo-pro/id6756675050)

**Features:** 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 C# Data Structures & Algo Pro free?

C# Data Structures & Algo Pro costs $4.99, with no in-app purchases.

### Do AZ AI Certification Exam Prep or C# Data Structures & Algo Pro have ads?

Neither AZ AI Certification Exam Prep nor C# Data Structures & Algo Pro shows ads.

### Which is updated more often, AZ AI Certification Exam Prep or C# Data Structures & Algo Pro?

AZ AI Certification Exam Prep ships an update every 28 months, and C# Data Structures & Algo Pro every 3 months. Most recently, AZ AI Certification Exam Prep was updated on November 3, 2026 and C# Data Structures & Algo Pro on November 8, 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.*