# AZ vs Code Patterns

The clearest difference is update cadence: Code Patterns at every 6 days against AZ's every 3 months. AZ's advantage is iOS requirement (15.1 vs 18.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AZ sells 9 in-app purchases, starting at $8.99 per 7 days and Code Patterns sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

AZ ships an update every 3 months, Code Patterns every 6 days. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | AZ | Code Patterns |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/code-patterns/id6752111810/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 38 MB | 5 MB |
| Requires iOS | **15.1** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) | [Kevin Li](https://appshunter.io/developer/1837894748) |

## What reviewers say

### AZ

[App page](https://appshunter.io/ios/app/az-900-test-prep-review/id6741741722)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AZ-900 Weekly Full Access | $8.99 | per 7 days |
| AZ-900 Monthly Full Access | $24.99 | per month |
| AZ-900 Monthly Full Access | $34.99 | per month |
| AZ-900 Quarterly Full Access | $55.99 | per 3 months |
| AZ-900 Quarterly Full Access | $59.99 | per 3 months |
| AZ-900 Semiannual Full Access | $75.99 | per 6 months |
| AZ-900 Semiannual Full Access | $79.99 | per 6 months |
| AZ-900 Annual Full Access | $109.99 | per year |
| AZ-900 Annual Full Access | $119.99 | per year |


### Code Patterns

[App page](https://appshunter.io/ios/app/code-patterns/id6752111810)

Master coding algorithms through interactive challenges and real-time battles. Features adaptive learning, progress tracking, and gamified elements to enhance your programming foundation and prepare for technical interviews.

**Highlights:** Interactive algorithm challenges, Real-time AI coding battles, Adaptive retry system, Progress tracking and analytics, Gamified learning with rewards, Comprehensive algorithm coverage

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Monthly Subscription | $4.99 | per month |


## Frequently asked questions

### Is AZ free?

AZ is free to download, with in-app purchases available.

### Is Code Patterns free?

Code Patterns is free to download, with in-app purchases available.

### Do AZ or Code Patterns have ads?

Neither AZ nor Code Patterns shows ads.

### Which is updated more often, AZ or Code Patterns?

AZ ships an update every 3 months, and Code Patterns every 6 days. Most recently, AZ was updated on September 18, 2026 and Code Patterns on September 23, 2026.

---

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