LangJournal helps you learn a language by keeping a diary, with AI corrections, explanations, follow-up questions, and review exercises.
Write about your day in the language you're learning. AI checks grammar and unnatural expressions and helps you make your writing clearer and more natural.
Each correction comes with an explanation, so you can understand why a change is needed and develop your writing skills.
When you're unsure about an expression, you can ask AI directly.
Ask questions about your diary, such as "Does this sound natural?", "What's the difference between 'the' and 'a'?", or "How can I say this more casually?"
Keeping a diary is a way to practice writing and build a daily habit of using the language.
Start with one short sentence and gradually build your grammar, vocabulary, and range of expressions.
[Key Features]
■ Write a Diary With AI Corrections
AI checks your diary as soon as you submit it.
Get help with grammar, vocabulary, and unnatural expressions to make your writing more natural.
■ Understand Why a Correction Is Needed
See why each corrected part needs to change.
Review your writing with explanations, rather than just looking at the corrected answer.
■ Ask AI About Your Diary
Ask AI any questions you still have after a correction.
Explore nuances, grammar, alternative wording, and more natural ways to express yourself.
■ Review Your Mistakes
Review by writing sentences in exercises based on corrections from your diary.
Practice reducing repeated mistakes and reinforcing what you've learned.
■ Look Back With Weekly Reports
Review your diary entries, AI chats, words used, and words used for the first time each week.
See how many days you've practiced and how much you've done to help build a learning habit.
■ Check Your English Level With CEFR Analysis
Analyze your diary against CEFR levels to get an indication of your English proficiency.
See an overall assessment and breakdowns covering vocabulary, grammar, and verb forms.
This feature is currently available for English learners.
■ Learn by Chatting With AI Characters
Talk with AI characters such as Zena, Zeb, Leon, and Mari by text or voice.
Build on topics from your diary or discuss a topic you enjoy to get more practice using the language.
■ Learn in 13 Languages
Study English, Korean, Japanese, Chinese, Spanish, German, French, Italian, Portuguese, Dutch, Polish, Swedish, or Tagalog.
■ Share Diaries With a Team
Join a team to share diary entries and exchange comments with others learning the same language.
Learning together can help you keep going when it's hard to stay consistent on your own.
This feature is currently available for learners of English, German, and Korean.
■ Get Daily Support From Zena
Zena supports you with comments based on your learning activity.
Start with a short diary entry and find encouragement to keep learning each day.
[Recommended For]
■ Learners who want to develop natural expressions by keeping a diary
■ People who want to practice writing with AI corrections
■ Learners who want to understand their mistakes and avoid repeating them
■ People who want to learn at their own pace while asking AI questions
■ Learners who want more opportunities to use the language every day
■ People who find it hard to stay consistent alone and want to enjoy learning languages
One of the best tools for improving and practicing on new language.
Developer Response
Thank you for the great feedback! We’re glad our app is helping you improve and practice your new language. Keep up the great work!
- AI Chat now has 5-message lessons, extensions and reviews with corrections.
- AI Chat is moving to Premium. Existing free users can use 1 lesson per day through November 30.
- Added diary title corrections and separate retries for title and text corrections.
- Fixed issues with web analysis and weekly reports, text input and correction cards.
Version 7.11.18
The developer, Daiki Sato, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
Purchases
Location
Contact Info
User Content
Search History
Identifiers
Usage Data
Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
User Content
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Daiki Sato
Size
105.4 MB
Category
Education
Compatibility
Requires iOS 16.4 or later.
iPhone Requires iOS 16.4 or later.
iPad Requires iPadOS 16.4 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 1.0 or later.
Languages
English and 6 more
English, French, German, Japanese, Korean, Spanish, Traditional Chinese
