Acquire languages through a journaling habit


What is LangJournal

LangJournal comes with a correction AI in addition to the general journal function. LangJournal is the definitive app for those who want to learn a language through a journal.

Languages supported

English, German, Spanish, French, Portuguese, Dutch 

List of Functions

Three types of AI correct your journal instantly

The AI will correct your journal entries. They can correct your journal for free. 3 types of AI are available, each with different characteristics.

You can write unlimited journals in a day.

There is no upper limit to the number of journals you can write. Of course, all your journals will be corrected by AI.

Get professional help to correct your journal.

You can request a professional to correct your journal, and you can "request and pay" and "check the results of correction" within the LangJournal application.

You can put photos in your journal.

You can put up to 4 photos per journal.

Passcode lock

If you don't want people to see your journal, you can lock the app.

Reminder function

Set your study time and you will be notified by push notification. Use the reminder function to prevent forgetting to write until you get into the habit of keeping a journal.

Share your journals across multiple devices

You can use the same account on multiple devices and also continue to enjoy the application with the same account after changing the device model.

Voice Recording

After writing a journal entry, you can record your voice and save it in the app. This is useful for checking your pronunciation.

Text to Speech

You can read your journal out loud.

Search your journal entries

You can quickly search your past journal entries by keyword.

Fee for hiring a professional

Price: 2 yen per character (minimum charge 50 yen)
Payment method: credit card

* Both free membership and premium membership can use it.

Premium Membership

All basic functions can be used for free.

If you become a premium member,

you will be able to use the following functions.

Advantage 1: Correction without viewing video ads

If you are a free member, you can always use the first correction AI without ads for free, but you need to watch a 15-30 second video advertisement for the second and subsequent correction AIs.

By becoming a premium member, you can correct with all AI without viewing video advertisements (* up to 10 times a day)

Advantage 2: No Ads

Remove all ads in the app

<<Premium member fee>>

  • ¥500/month or ¥5,000/year
  • Payment method: In-app payment

Contact us

For app bugs and feature improvement requests,

please contact us from here.


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