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
I really like the app, but the ad close button is not working.I cannot dismiss ads on both iPhone and iPad, and it forces me to restart the app. とても良いアプリだと思っていますが、広告の閉じるボタンが機能しません。iPhoneとiPadの両方で発生しており、広告を閉じることができずアプリを再起動する必要があります。
Developer Response
Sorry for the inconvenience. Could you please try again and check whether the issue happens again? If it does, please contact us through the in-app Inquiry form and tell us your device model (for example, iPhone X or iPhone 15).
Great for developing natural writing!
Sodelle02
I have been using this app most days and have found that my natural understanding of German grammar is improving. I learn new vocabulary from each response and really appreciate the explanations for each correction. Having the option to see my sentences rewritten in a more natural way is a bonus. Great app!
Add CEFR to more than English learners!
Corlew0
App is mainly only geared towards English learners. Most of the good features that would draw interest aren’t available for any other languages. The CEFR tracking is a powerful feature that drew me to this app; mainly because I want Spanish and French CEFR certifications in the future. This would have helped tremendously towards my goals. This feature should at least be available for Spanish learners being that Spanish is in the top 3 most learned languages in the world.
Developer Response
Thanks for the feedback! We agree—CEFR support for Spanish and French is important. We're planning to expand it in the future!
Excellent Language App
Kfvg65
I have many language apps. They all seem to do word to word translations. This is the only app I found with tips so your phraseologysound authentic. It is the app I have been looking for.
Developer Response
Thank you so much! We're glad the app helps you speak more naturally. Your feedback truly motivates us!
- Updated the AI used in AI Chat and simplified the Ask AI screen.
- Survey reply notifications now include the comment you sent.
- Refined the Premium plan introduction screens.
- Improved web sign-in screens and the layout of buttons and links.
Version 7.11.22
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
105.2 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
