# Leaflet for Swift&Algorithm vs Eul

The clearest difference is ratings volume: Leaflet for Swift&Algorithm at 297 against Eul's 4. Leaflet for Swift&Algorithm also leads on update cadence (every 6 days vs every 2 weeks). Eul's advantage is review sentiment (92% vs 71%) and rating (4.8 vs 4.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Leaflet for Swift&Algorithm sells 1 one-off in-app purchase and Eul sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Eul holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Leaflet for Swift&Algorithm has 297 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 71% of Leaflet for Swift&Algorithm's written reviews are positive against 92% of Eul's.

Leaflet for Swift&Algorithm ships an update every 6 days, Eul every 2 weeks. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Leaflet for Swift&Algorithm | Eul |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (297 ratings)](https://appshunter.io/ios/app/leaflet-for-swift-and-algorithm/id1420814118/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/eul-swiftui/id1541991958/reviews)** |
| Number of ratings | **297** | 4 |
| Positive reviews | 71.4% of reviews | **92.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 9 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [雷 戴](https://appshunter.io/developer/696880612) | [科 曾](https://appshunter.io/developer/1322330151) |

## What reviewers say

### Leaflet for Swift&Algorithm

[App page](https://appshunter.io/ios/app/leaflet-for-swift-and-algorithm/id1420814118)

This app offers comprehensive learning modules for Swift, SwiftUI, and Combine, alongside data structures and algorithms. It provides micro-classes, tutorials, code style guides, and practical examples to help users master programming concepts and develop efficient applications.

**Highlights:** Swift language tutorials, SwiftUI and Combine development, Data structure and algorithm learning, Micro-classes for core concepts, Code style guide, Algorithm problem-solving examples

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Pro Version | $0.99 | one-time |

**What reviewers like**

- 👍 Good explanations
- 👍 Easy to use
- 👍 Clean interface
- 👍 Helpful for learning
- 👍 Lovely app

**What reviewers complain about**

- 🐛 Solutions not loading
- 🐛 App crashes on launch
- 🐛 Frequent crashes
- 🐛 Not a true dark mode
- 🐛 Code formatting issues

**Reported bugs**

- Solutions for problems are not loading
- App crashes on first load
- App crashes immediately on launch
- App crashes after first use and backgrounding
- Paid for pro user, but no answers for many questions

**Requested features**

- Add more iOS technical upgrades
- Add filter options for algorithms (e.g., top 100, top 200)
- Allow users to write their own notes for algorithms
- Add JavaScript examples
- Allow users to suggest/edit explanations (wiki-like)


### Eul

[App page](https://appshunter.io/ios/app/eul-swiftui/id1541991958)

This app offers an interactive SwiftUI learning experience with real-time code previews on Apple devices. It covers the latest SwiftUI features and serves as a comprehensive reference tool for developers.

**Highlights:** Interactive SwiftUI learning, Real-time code previews, Covers latest SwiftUI updates, Comprehensive reference tool, Cross-platform support (iOS, iPadOS, macOS), Powerful search functionality

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $1.99 | one-time |


## Frequently asked questions

### Is Leaflet for Swift&Algorithm free?

Leaflet for Swift&Algorithm is free to download, with in-app purchases available.

### Is Eul free?

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

### Which has better reviews, Leaflet for Swift&Algorithm or Eul?

Eul is rated higher. Leaflet for Swift&Algorithm averages 4.6 out of 5 from 297 ratings, while Eul averages 4.8 from 4 ratings.

### Do Leaflet for Swift&Algorithm or Eul have ads?

Neither Leaflet for Swift&Algorithm nor Eul shows ads.

### Which is updated more often, Leaflet for Swift&Algorithm or Eul?

Leaflet for Swift&Algorithm ships an update every 6 days, and Eul every 2 weeks. Most recently, Leaflet for Swift&Algorithm was updated on September 21, 2026 and Eul on September 22, 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.*