# SKKU 학술정보관 vs LingoDeer

The clearest difference is review sentiment: LingoDeer at 77% against SKKU 학술정보관's 14%. LingoDeer also leads on rating (4.7 vs 1.0) and ratings volume (28K vs 1). SKKU 학술정보관's advantage is in-app purchases (none vs 18). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. LingoDeer sells 17 in-app purchases, starting at $12.99 per month. SKKU 학술정보관 asks for nothing beyond the download.

LingoDeer holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: LingoDeer has 28K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 14% of SKKU 학술정보관's written reviews are positive against 77% of LingoDeer's.

SKKU 학술정보관 ships an update every 2 months, LingoDeer every 3 weeks. The most recent releases landed on October 8, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | SKKU 학술정보관 | LingoDeer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/skku/id704313915/reviews) | **[4.7 (28K ratings)](https://appshunter.io/ios/app/lingodeer-learn-languages/id1261193709/reviews)** |
| Number of ratings | 1 | **28K** |
| Positive reviews | 14.3% of reviews | **77.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Subscription |
| Best chart rank | — | **#151** |
| Size | 7 MB | 216 MB |
| Requires iOS | **14.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [INEK corp.](https://appshunter.io/developer/494214129) | [LingoDeer Co, Ltd.](https://appshunter.io/developer/1261193708) |

## What reviewers say

### SKKU 학술정보관

[App page](https://appshunter.io/ios/app/skku/id704313915)

Access library information, including operating hours, facility details, and contact information. Manage book requests, view loan history, and access electronic resources like databases and e-books. Stay updated on library events and reserve study seats.

**Highlights:** Library information and guidance, Announcements and notices, Book request service, My Library: loan history and personal notices, Electronic resources access, Library usage education, Mobile seat assignment

**Features:** Vision Pro support

**In-app purchases:** none


### LingoDeer

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

**Currently charting:** #151 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 SKKU 학술정보관 free?

SKKU 학술정보관 is free to download, with no in-app purchases.

### Is LingoDeer free?

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

### Which has better reviews, SKKU 학술정보관 or LingoDeer?

LingoDeer is rated higher. SKKU 학술정보관 averages 1.0 out of 5 from 1 ratings, while LingoDeer averages 4.7 from 28K ratings.

### Do SKKU 학술정보관 or LingoDeer have ads?

Neither SKKU 학술정보관 nor LingoDeer shows ads.

### Which is updated more often, SKKU 학술정보관 or LingoDeer?

SKKU 학술정보관 ships an update every 2 months, and LingoDeer every 3 weeks. Most recently, SKKU 학술정보관 was updated on October 8, 2026 and LingoDeer on October 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.*