# Polyglot Reader vs LingoDeer

The clearest difference is monetization model: Polyglot Reader at free with in-app purchases against LingoDeer's subscription. LingoDeer's advantage is ads (none vs shown) and ratings volume (28K vs 74). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Polyglot Reader sells 11 in-app purchases, starting at $3.99 per month and LingoDeer sells 17 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

LingoDeer holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: LingoDeer has 28K ratings behind it against 74, so its average is the more settled of the two. Written reviews point the same way: 66% of Polyglot Reader's written reviews are positive against 77% of LingoDeer's.

Polyglot Reader ships an update every 2 months, LingoDeer every 3 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Polyglot Reader | LingoDeer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (74 ratings)](https://appshunter.io/ios/app/polyglot-reader/id1015619263/reviews) | **[4.7 (28K ratings)](https://appshunter.io/ios/app/lingodeer-learn-languages/id1261193709/reviews)** |
| Number of ratings | 74 | **28K** |
| Positive reviews | 65.7% of reviews | **76.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | — | **#186** |
| Size | 120 MB | 216 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anton Ivanov](https://appshunter.io/developer/594091388) | [LingoDeer Co, Ltd.](https://appshunter.io/developer/1261193708) |

## What reviewers say

### Polyglot Reader

[App page](https://appshunter.io/ios/app/polyglot-reader/id1015619263)

Read books in foreign languages and learn new vocabulary. Tap on unknown words for instant translations and save them to flashcards for later study. Supports various document formats and offers pronunciation practice and knowledge tests.

**Highlights:** Read books in multiple formats (PDF, EPUB, TXT), Translate unknown words and phrases instantly, Create flashcards for vocabulary learning, Pronunciation support for words and phrases, Knowledge tests for vocabulary sets, Scan and recognize text from documents

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $3.99 | per month |
| Monthly subscription | $7.99 | per month |
| Monthly subscription | $7.99 | per month |
| Monthly subscription | $9.99 | per month |
| Annual subscription | $22.99 | per year |
| Annual subscription | $34.99 | per year |
| Annual subscription | $39.99 | per year |
| Annual subscription | $59.99 | per year |
| Upgrade from advanced to professional version | $3.99 | one-time |
| Upgrade from Starter to Advanced version | $15.99 | one-time |
| Full version | $99.99 | one-time |


### LingoDeer

[App page](https://appshunter.io/ios/app/lingodeer-learn-languages/id1261193709)

**Currently charting:** #186 Top Grossing · Education (US App Store)

This app offers structured language lessons created by teachers, making learning effective and easy. It covers 20 languages, from beginner alphabets to conversational fluency, with interactive exercises and native speaker audio.

**Highlights:** Short, interactive lessons, Clear learning path, Grammar tips and notes, Native speaker audio, Flashcards and quizzes, Offline learning, Real-life conversation practice

**Features:** Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spanish Monthly Subscription | $12.99 | per month |
| Japanese Monthly Subscription | $12.99 | per month |
| Korean Monthly subscription | $12.99 | per month |
| Multilingual Pass - Monthly | $14.99 | per month |
| Korean Quarterly subscription | $32.99 | per 3 months |
| Multilingual Pass - Quarterly | $34.99 | per 3 months |
| Korean Pass - Yearly | $76.99 | per year |
| Multilingual Pass - 6 Months | $83.99 | per 6 months |
| Multilingual Pass (Annual) | $95.99 | per year |
| Multilingual Pass (Annual) | $95.99 | per year |
| Yearly subscription - discount | $109.99 | per year |
| Buy 1200 Gems | $4.99 | one-time |
| Buy 3000 Gems | $9.99 | one-time |
| Multilingual Pass - Lifetime | $119.99 | one-time |
| Multilingual Pass - Lifetime | $159.99 | one-time |
| lifetime membership for new | $299.99 | one-time |
| lifetime membership discount | $499.99 | one-time |

**What reviewers like**

- 🚀 Great for learning Asian languages
- 👍 Thorough grammar and sentence structure explanations
- 🎨 Aesthetically pleasing design
- 📚 Comprehensive lessons and review features
- 🔊 Clear audio and pronunciation guidance

**What reviewers complain about**

- 💰 Paywall after initial lessons
- 🐛 Occasional bugs and glitches
- 🔍 Limited free content
- 🔀 Difficulty switching between languages
- 🔢 Lack of customization options (e.g., dark mode)

**Reported bugs**

- Progress bar not updating correctly
- Incorrect answers sometimes marked as correct
- Inability to resume lessons after app update
- Keyboard issues when typing answers

**Requested features**

- Allow typing answers instead of just selecting
- Provide feedback on pronunciation accuracy
- Improve spaced repetition for vocabulary review
- Add more languages, especially less common ones
- Implement a community feature to connect with other learners


## Frequently asked questions

### Is Polyglot Reader free?

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

### Is LingoDeer free?

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

### Which has better reviews, Polyglot Reader or LingoDeer?

LingoDeer is rated higher. Polyglot Reader averages 4.4 out of 5 from 74 ratings, while LingoDeer averages 4.7 from 28K ratings.

### Do Polyglot Reader or LingoDeer have ads?

Polyglot Reader shows ads; LingoDeer does not.

### Which is updated more often, Polyglot Reader or LingoDeer?

Polyglot Reader ships an update every 2 months, and LingoDeer every 3 weeks. Most recently, Polyglot Reader was updated on September 23, 2026 and LingoDeer on September 24, 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.*