# LeetCard vs Design Patterns Illustrated

The clearest difference is in-app purchases: Design Patterns Illustrated at none against LeetCard's 3. Design Patterns Illustrated also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | LeetCard | Design Patterns Illustrated |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (75 ratings)](https://appshunter.io/ios/app/leetcard-coding-flashcards/id6478087443/reviews)** | — |
| Number of ratings | **75** | — |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 124 MB | 8 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Kubicle LLC](https://appshunter.io/developer/1679797468) | [Apps Foundry Inc.](https://appshunter.io/developer/1772141640) |

## What reviewers say

### LeetCard

[App page](https://appshunter.io/ios/app/leetcard-coding-flashcards/id6478087443)

Prepare for coding interviews with AI-powered flashcards and adaptive learning. Master data structures, algorithms, and coding patterns with personalized plans and intelligent hints. Track your progress with detailed analytics to identify weak areas and stay motivated.

**Highlights:** AI-powered hints, Personalized study plans, Smart flashcards, Clean organization, Personalized dashboard, Detailed analytics

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LeetCard Pro | $3.99 | per month |
| LeetCard Pro | $24.99 | per year |
| LeetCard Pro | $39.99 | one-time |


### Design Patterns Illustrated

[App page](https://appshunter.io/ios/app/design-patterns-illustrated/id6736484312)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LeetCard free?

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

### Is Design Patterns Illustrated free?

Design Patterns Illustrated is free to download, with no in-app purchases.

### Do LeetCard or Design Patterns Illustrated have ads?

LeetCard shows ads; Design Patterns Illustrated 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.*