# LeetCard vs Algo Demo

The clearest difference is in-app purchases: Algo Demo at none against LeetCard's 3. Algo Demo also leads on iOS requirement (13.0 vs 16.4). LeetCard's advantage is update cadence (every 2 days vs every 4 months). On price, ads and device support there is nothing between them.

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

LeetCard ships an update every 2 days, Algo Demo every 4 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | LeetCard | Algo Demo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (83 ratings)](https://appshunter.io/ios/app/leetcard-coding-flashcards/id6478087443/reviews)** | — |
| Number of ratings | **83** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 124 MB | 36 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Kubicle LLC](https://appshunter.io/developer/1679797468) | [zhuo zeng](https://appshunter.io/developer/1435764582) |

## 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 |


### Algo Demo

[App page](https://appshunter.io/ios/app/algo-demo/id6746090108)

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

**In-app purchases:** none


## Frequently asked questions

### Is LeetCard free?

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

### Is Algo Demo free?

Algo Demo is free to download, with no in-app purchases.

### Do LeetCard or Algo Demo have ads?

Both LeetCard and Algo Demo show ads.

### Which is updated more often, LeetCard or Algo Demo?

LeetCard ships an update every 2 days, and Algo Demo every 4 months. Most recently, LeetCard was updated on October 25, 2026 and Algo Demo on October 25, 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.*