# Zero vs Design Patterns for Devs

The clearest difference is ads: Design Patterns for Devs at none against Zero's shown. Zero's advantage is iOS requirement (16.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Zero sells 3 one-off in-app purchases and Design Patterns for Devs sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Zero | Design Patterns for Devs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/design-patterns-for-devs/id6754806188/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 16 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thuong Nguyen](https://appshunter.io/developer/948221852) | [Daniel Gogozan](https://appshunter.io/developer/1664769372) |

## What reviewers say

### Zero

[App page](https://appshunter.io/ios/app/zero-check-website-status/id6478543338)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Unlimited Websites | $1.99 | one-time |
| Professional | $2.99 | one-time |


### Design Patterns for Devs

[App page](https://appshunter.io/ios/app/design-patterns-for-devs/id6754806188)

Master software design patterns with interactive flashcards. This app provides comprehensive lessons, code examples, and quizzes to help developers understand and apply architectural concepts for better coding and clearer architecture.

**Highlights:** Interactive flashcards, Gang of Four pattern coverage, Real-world analogies, UML diagrams and code examples, Usage, Pros & Cons, Quizzes for retention

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Zero free?

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

### Is Design Patterns for Devs free?

Design Patterns for Devs is free to download, with in-app purchases available.

### Do Zero or Design Patterns for Devs have ads?

Zero shows ads; Design Patterns for Devs does not.

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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.*