# Mog - AI Journal & Grammar — Write for Language Learning

> AI-powered multilingual diary for language learning and writing improvement. (iPhone/iPad app by AHN YOONJI.)

- Source: https://appshunter.io/ios/app/mog-ai-journal-and-grammar/id6753913647 (this page in markdown: same URL + `.md`)
- Developer: [AHN YOONJI](https://appshunter.io/developer/1056120766)
- Category: Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 124 MB
- Languages: American English
- Released: 2025-11-10
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/mog-ai-journal-and-grammar/id6753913647/reviews.md

## What is Mog?

Mog - My own log
A multilingual AI diary that helps you grow every day.

AI analyzes your diary and provides personalized feedback.
Write in English, Korean, Chinese, Spanish, German, or French — and improve your writing skills naturally.

With customized grammar feedback for each language, you can refine your expressions with ease.
AI analyzes your sentence structure and suggests more natural expressions.

Start building your journaling habit with Mog, and enhance your foreign language skills at the same time!

[ Main Features ]

1. AI Feedback & Interactive Q&A
- Get corrected sentences, recommended vocabulary, and natural expressions for your diary entries.
- Have questions about your feedback? Ask AI directly and keep the conversation going.

2. Emojis & Photo Attachments
- Record your mood with emojis and track it through the calendar.
- Add photos to your diary and capture your moments more vividly.

3. Voice Playback (Text-to-Speech)
- Listen to your diary entries, recommended words, and expressions in natural-sounding audio.

4. Customizable Display
- Adjust fonts and text sizes to create your perfect writing environment.

5. Google Drive Backup & Restore
- Keep your diaries safe and restore them anytime.


(Your diary entries are stored only on your device and are not used for AI training or improvement.)

**
The subscription fee will be charged to the payment method linked to your store account.
Unless canceled at least 24 hours before the end of the subscription period, your subscription will automatically renew.
After subscribing, you can manage your subscription in your store account settings.

Terms of Service : http://bit.ly/4nlgpgj
Privacy Policy : http://bit.ly/4ndF1XZ

[Contact us]
momots_works@naver.com

## Key features

- AI feedback and Q&A
- Multilingual writing support
- Grammar and expression refinement
- Emoji and photo attachments
- Voice playback (text-to-speech)
- Google Drive backup

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Mog PRO (1 Year) | $24.99 | per year |
| Mog PRO (1 Month) | $4.99 | per month |


## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/mog-ai-journal-and-grammar/id6753913647/reviews.md

### 5/5 — とても参考になります

*2026-06-25*

ＡＩ添付があるととても助かります

### 5/5 — 영어 외 언어도 지원해줘서 좋아요

*2026-06-23*

제3외국어 공부 중인데 마땅한 일기 앱이 없어서 아쉬웠거든요 제가 딱 찾던 어플이네요 그날 하루 기분 표정 선택 가능한 것도 좋아요. 구독제 말고 아예 영구 구매로 유료 버전 나오면 좋겠어요

### 5/5 — 딱 필요한 어플!

*2026-04-11*

불어를 위한 AI 피드백 일기장 찾다가 모그를 발견하게 되었는데 필요한 기능만 모으고 인터페이스까지 깔끔해서 이용할 때마다 기분이 좋더라고요! 불어 뿐만 아니라 모든 언어가 사용 가능하니 언어학습자들에게 강추합니다 :)

### 5/5 — 굳!!!!

*2026-02-19*

완전 조하요ㅜㅜㅜ 귀엽고 피드백도 짱! 근데 중국어 성조도 깉이 써주면 딘짜 최고일듯!

### 3/5 — 괜찮은 앱이에욘

*2026-02-07*

글자수 제한 좀 킹받아서 별로 길게는 못쓰는데 그래도 라이팅 연습하기 조금 좋은듯? 한거같기도 합니다

### 5/5 — 쉽게 영어공부하게되네요

*2026-01-30*

이제 리스닝은 어느정도 되는데 항상 작문이 문제였거든요 근데 이건 일기처럼 쓰니 크게 부담되지도 않고 필요한 단어도 찾아보게되고 확실히 부담감이 적네요 심지어 마지막엔 검수까지 되니 제 비약한 영어실력을 더 길러줄거같습니다

### 5/5 — 딱원했던 일기앱

*2025-12-17*

영어를 공부할 때 원래는 일기를 쓰면서 공부하고 싶었는데, 드디어 제가 원하던 앱을 찾았어요! 영어로 글을 쓸 때도 표현이나 문법이 맞는지 확신이 안 설 때가 있는데, 쓰고 나면 바로 교정받을 수 있어서 너무 좋아요.

### 5/5 — 너무 편해요!

*2025-12-13*

한글로 작성 후 외국어로 번역만 해주는게 아니라 예시 기반 어휘를 추천해줘서 학습하기 좋습니다! 잘 사용할게요!

### 5/5 — 와 최곱니다.

*2025-12-12*

영어 안 한지 너무 오래 되서 영어 다 까먹을까봐 걱정 하던 중에 앱에서 영어로 일기 쓰니까 ai 가 표현법이나 문법 교정 해줘서 잘 못 쓰던 문법을 교정해주니까 너무 좋습니다. 동시에 자연스럽게 안 쓰던 일기를 쓰게 될거 같아요 !

### 5/5 — 너무 좋아요

*2025-12-09*

ai첨삭에 바꿔준 부분 후리가나랑 한국어 해석도 있으면 좋겠어요!ㅠㅠ

**Developer response:** 안녕하세요~ 소중한 의견 감사합니다 :)

첨삭후에 상단메뉴의 질문하기 버튼을 통해서 “고친 부분 후리가나로 보여줘“, ”한국어로 해석해줘“라고 질문하여 활용하시는 방법도 추천드리며, 자동으로 후리가나나 한국어 해석이 추가되는 방안에 대해서도 개발시 함께 검토해보겠습니다.

사용해주시고 긍정적인 피드백 남겨 주셔서 감사합니다☺️

## Frequently asked questions about Mog

### How does Mog help with language learning?

Mog analyzes your diary entries in multiple languages and provides personalized feedback on grammar, vocabulary, and natural expressions. You can also ask the AI direct questions about the feedback to deepen your understanding.

### What languages does Mog support for writing?

Mog supports writing in English, Korean, Chinese, Spanish, German, and French, offering customized grammar feedback for each.

### Can I listen to my diary entries with Mog?

Yes, Mog features voice playback, allowing you to listen to your diary entries, recommended words, and expressions in natural-sounding audio.

### Is my diary data safe with Mog?

Your diary entries are stored only on your device and are not used for AI training or improvement. Mog also offers Google Drive backup and restore functionality to keep your entries safe.

### What are the subscription options for Mog PRO?

Mog PRO offers monthly and yearly subscription plans. The monthly plan is $4.99, and the yearly plan is $24.99. Subscriptions automatically renew unless canceled at least 24 hours before the end of the period.

### Does Mog have ads?

Yes, Mog contains advertisements. This is common for free applications that offer in-app purchases for premium features.

### What devices is Mog available on?

Mog is currently supported on iPhone and iPod devices, indicated by its compatibility with iOS.

### How often is Mog updated?

The latest version of Mog is 3.3, and it was last updated on May 21, 2026. This indicates a relatively active development cycle.

## Version history (last 5 releases)

### 3.4.1 — 2026-08-23

We improved the loading speed of the intro screen.

### 3.4.0 — 2026-08-22

Bug fixed.

### 3.3.2 — 2026-07-29

Bug fixed

### 3.3 — 2026-05-21

Bug fixed

### 3.2 — 2026-04-22

- The question UI has been improved.
- Other issues have been fixed.

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All apps by AHN YOONJI: https://appshunter.io/developer/1056120766

## Related topics

[ahn yoonji](https://appshunter.io/ios/topics/ahn-yoonji)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*