# Karteto vs Duory

The clearest difference is rating: Karteto at 4.3 against Duory's 1.0. Karteto also leads on review sentiment (33% vs 0%) and ratings volume (485 vs 1). Duory's advantage is ads (none vs shown). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Karteto sells 9 in-app purchases, starting at $9.99 per 7 days and Duory sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Karteto holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Karteto has 485 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of Karteto's written reviews are positive against 0% of Duory's.

Karteto ships an update every 9 days, Duory every 5 days. Both last shipped on November 4, 2026.

## The numbers

| Metric | Karteto | Duory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (485 ratings)](https://appshunter.io/ios/app/karteto-vocabulary-flashcards/id6450647717/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/duory-language-learning-notes/id6504098229/reviews) |
| Number of ratings | **485** | 1 |
| Positive reviews | **32.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 102 MB | 152 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [karteto LLC](https://appshunter.io/developer/1694209766) | [Adegboyega Dada](https://appshunter.io/developer/1542474149) |

## What reviewers say

### Karteto

[App page](https://appshunter.io/ios/app/karteto-vocabulary-flashcards/id6450647717)

Expand your vocabulary and learn new languages with interactive flashcards. This app uses spaced repetition to help you memorize words effectively across over 100 languages. Create personalized decks, track progress, and enjoy engaging learning methods.

**Highlights:** Personalized flashcard decks, Spaced repetition system, Audio pronunciation and stories, Word map for connections, Public and custom word themes, Integrated dictionary, Visual learning with images

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Monthly | $24.99 | per month |
| Monthly | $24.99 | per month |
| 3 month | $49.99 | per 3 months |
| 3 months | $49.99 | per 3 months |
| Annual | $95.99 | per year |
| Annual | $95.99 | per year |
| Lifetime | $299.99 | one-time |
| Lifetime Plus | $299.99 | one-time |

**What reviewers like**

- 🚀 Efficient vocabulary learning
- 👍 Clean and user-friendly design
- 💡 Engaging flashcard system
- 🚀 Quick and easy to use

**What reviewers complain about**

- 🐛 Incorrect translations and definitions
- 🐛 Buggy and glitchy performance
- 💰 Expensive subscription
- 🔍 Lack of context for words
- 🔍 Missing language features (e.g. articles, conjugations)

**Reported bugs**

- Frequent app crashes
- Words not loading properly
- Subscription issues and unexpected charges
- Incorrect or missing translations

**Requested features**

- Add ability to report errors in translations
- Implement spaced repetition settings
- Include audio pronunciations for all languages
- Allow users to create and share custom word lists
- Integrate with other language learning tools


### Duory

[App page](https://appshunter.io/ios/app/duory-language-learning-notes/id6504098229)

This app helps you learn languages by organizing your notes, practicing vocabulary, and journaling in your target languages. It offers features like translation, pronunciation recording, and widgets to reinforce learning.

**Highlights:** Organize notes for multiple languages, Practice vocabulary hands-free, Journal in target languages, Capture phrases from various sources, Home and Lock Screen widgets, In-app translation and transliteration, Record and playback pronunciation

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Duory Plus (Monthly) | $2.99 | per month |
| Duory Family Plus (Monthly) | $4.99 | per month |
| Duory Plus (Annual) | $29.99 | per year |
| Duory Family Plus (Annual) | $49.99 | per year |


## Frequently asked questions

### Is Karteto free?

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

### Is Duory free?

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

### Which has better reviews, Karteto or Duory?

Karteto is rated higher. Karteto averages 4.3 out of 5 from 485 ratings, while Duory averages 1.0 from 1 ratings.

### Do Karteto or Duory have ads?

Karteto shows ads; Duory does not.

### Which is updated more often, Karteto or Duory?

Karteto ships an update every 9 days, and Duory every 5 days. Most recently, Karteto was updated on November 4, 2026 and Duory on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*