# DUX vs Codalingo

The clearest difference is review sentiment: DUX at 100% against Codalingo's 43%. DUX also leads on rating (5.0 vs 4.3) and ads (none vs shown). Codalingo's advantage is iOS requirement (15.6 vs 17.0). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. DUX sells 8 in-app purchases, starting at $1.99 per month and Codalingo sells 14 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

DUX holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 9 and 20 respectively. Written reviews point the same way: 100% of DUX's written reviews are positive against 43% of Codalingo's.

DUX ships an update every 3 months, Codalingo every 4 months. The most recent releases landed on September 20, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | DUX | Codalingo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/dux-ux-learning-roadmap/id6476490184/reviews)** | [4.3 (20 ratings)](https://appshunter.io/ios/app/codalingo-learn-dart-flutter/id6480119037/reviews) |
| Number of ratings | 9 | **20** |
| Positive reviews | **100.0% of reviews** | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 48 MB | 113 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AmirHossein Golmohammadi](https://appshunter.io/developer/1222485936) | [Ammar Khatib](https://appshunter.io/developer/1613990135) |

## What reviewers say

### DUX

[App page](https://appshunter.io/ios/app/dux-ux-learning-roadmap/id6476490184)

Master user experience design with a comprehensive guide to design principles. Explore interactive examples, case studies, and practical tips to enhance your digital creations. Ideal for designers and enthusiasts looking to create captivating user experiences.

**Highlights:** Comprehensive design principles, Interactive learning modules, Practical implementation tips, User-friendly interface, Case studies and examples

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Account - 1 Month | $1.99 | per month |
| Pro Account - 3 Month | $5.99 | per 3 months |
| Pro Account - Unlimited Hearts | $7.99 | per year |
| 50 Dux Points | $0.99 | one-time |
| 250 Dux Points | $3.99 | one-time |
| Extra Lesson | $3.99 | one-time |
| 500 Dux Points | $7.99 | one-time |
| 1000 Dux Points | $14.99 | one-time |


### Codalingo

[App page](https://appshunter.io/ios/app/codalingo-learn-dart-flutter/id6480119037)

Master Dart and Flutter with interactive quizzes and diverse question formats. Track your progress on the leaderboard and review tricky concepts. Offers a dynamic learning experience for all skill levels.

**Highlights:** Interactive quizzes, Diverse question formats, Leaderboard, Progress review, Targeted practice, Customizable challenges

**Features:** macOS Compatibility

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium with discount | $4.99 | per year |
| Premium Month | $6.99 | per month |
| Yearly Premium 30% off | $9.99 | per year |
| Yearly Premium (Offer & Trial) | $9.99 | per year |
| Yearly Premium | $17.99 | per year |
| 6 months Premium | $24.99 | per 6 months |
| Premium Year | $29.99 | per year |
| Remove ads | $1.99 | one-time |
| 1 Premium Category | $1.99 | one-time |
| 2 Premium Categories | $2.99 | one-time |
| Unlock Premium | $4.99 | one-time |
| 5 Premium Categories | $4.99 | one-time |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is DUX free?

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

### Is Codalingo free?

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

### Which has better reviews, DUX or Codalingo?

DUX is rated higher. DUX averages 5.0 out of 5 from 9 ratings, while Codalingo averages 4.3 from 20 ratings.

### Do DUX or Codalingo have ads?

Codalingo shows ads; DUX does not.

### Which is updated more often, DUX or Codalingo?

DUX ships an update every 3 months, and Codalingo every 4 months. Most recently, DUX was updated on September 20, 2026 and Codalingo on October 2, 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.*