# luai5.2.1 vs Leaflet for Swift&Algorithm

The clearest difference is update cadence: Leaflet for Swift&Algorithm at every 6 days against luai5.2.1's every 3 months. Leaflet for Swift&Algorithm also leads on ratings volume (297 vs 7). luai5.2.1's advantage is monetization model (free vs free with in-app purchases) and review sentiment (91% vs 71%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. luai5.2.1 sells 7 one-off in-app purchases and Leaflet for Swift&Algorithm sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Leaflet for Swift&Algorithm holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Leaflet for Swift&Algorithm has 297 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 91% of luai5.2.1's written reviews are positive against 71% of Leaflet for Swift&Algorithm's, so the app with the better star average is not the one people write more warmly about.

luai5.2.1 ships an update every 3 months, Leaflet for Swift&Algorithm every 6 days. Both last shipped on September 21, 2026.

## The numbers

| Metric | luai5.2.1 | Leaflet for Swift&Algorithm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/luai521-autocompleteruncode/id593464654/reviews) | **[4.6 (297 ratings)](https://appshunter.io/ios/app/leaflet-for-swift-and-algorithm/id1420814118/reviews)** |
| Number of ratings | 7 | **297** |
| Positive reviews | **91.3% of reviews** | 71.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 54 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [小文 黄](https://appshunter.io/developer/490328393) | [雷 戴](https://appshunter.io/developer/696880612) |

## What reviewers say

### luai5.2.1

[App page](https://appshunter.io/ios/app/luai521-autocompleteruncode/id593464654)

Learn, run, and share Lua scripts with code completion, syntax highlighting, and a built-in browser. Customize your learning environment and share code easily via various platforms.

**Highlights:** Autocompletion and auto-indent, Code coloring and syntax highlighting, Built-in browser for learning materials, File system support for various formats, Customizable interface and appearance, Code sharing via email and social media, Generate QR codes for scripts and materials

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| To remove ads | $0.99 | one-time |
| Password Service | $0.99 | one-time |
| Horizontal screen development | $0.99 | one-time |
| Simple Vedio | $0.99 | one-time |
| Encryption Compression | $0.99 | one-time |
| Text Search | $0.99 | one-time |
| Autocomplete | $0.99 | one-time |


### 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)


## Frequently asked questions

### Is luai5.2.1 free?

luai5.2.1 is free to download, with in-app purchases available.

### Is Leaflet for Swift&Algorithm free?

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

### Which has better reviews, luai5.2.1 or Leaflet for Swift&Algorithm?

Leaflet for Swift&Algorithm is rated higher. luai5.2.1 averages 4.4 out of 5 from 7 ratings, while Leaflet for Swift&Algorithm averages 4.6 from 297 ratings.

### Do luai5.2.1 or Leaflet for Swift&Algorithm have ads?

Neither luai5.2.1 nor Leaflet for Swift&Algorithm shows ads.

### Which is updated more often, luai5.2.1 or Leaflet for Swift&Algorithm?

luai5.2.1 ships an update every 3 months, and Leaflet for Swift&Algorithm every 6 days. Most recently, luai5.2.1 was updated on September 21, 2026 and Leaflet for Swift&Algorithm on September 21, 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.*