キャラと英語日記 - Englu

Englu is an English learning app where you write a diary in English, and an AI character corrects it and sends you a reply the next morning.

Simply write about your day in English once a day. The next morning, you'll receive a reply from your chosen partner character. "I want to write again today because I want to read the reply"—this small pleasure transforms your English studies, which you might have given up on after only a few days, into a daily habit.

Keeping an English diary is the most accessible form of output-based learning to improve your English composition and writing skills. Because you write about yourself in your own words, vocabulary, grammar, and expressions stick firmly in your memory. However, it's difficult to keep it up on your own. You might not even know if your English is correct. Englu solves all these problems with "AI correction," "replies from characters," and "a system that makes you want to keep going."

◆Recommended for those who:
・Can't stick with English learning after just a few days
・Want to practice writing in English before taking English conversation lessons
・Have studied vocabulary and grammar, but lack opportunities for output
・Want to start an English diary, but want feedback on whether it's written correctly
・Want to add daily English output to their TOEIC or Eiken (English proficiency test) studies
・Don't like studying at a desk. Want to make just 5 minutes a day during their commute or school breaks
・Want to maintain motivation through interaction with a character
・Want to build a foundation for English writing and speaking

◆Features of Englu

【1】Receive a reply from a character the next morning
When you send in your diary, a reply from your partner character will be delivered at 6:30 the next morning. The reply includes the English text and a Japanese translation, and you can switch between the two with a single tap. Even beginners who are unsure about reading English can use it with ease. Having the daily anticipation of "What kind of reply will I get tomorrow morning?" will naturally help you continue your English diary.

[2] AI Corrects Your English on the Spot
When you submit your diary, the AI ​​immediately corrects spelling and grammatical errors. Because you can see "where you went wrong" right after writing, it's easier to remember and you won't repeat the same mistakes. It eliminates the anxiety of "Is this correct?" that often accompanies self-taught English writing.

[3] "Learning" to Acquire Higher-Level Expressions
It doesn't end with just correcting mistakes. Based on the content of your diary, it suggests more natural expressions and native-sounding English phrases as "learning." You'll gradually improve your English by one phrase each day. This is personalized learning material that directly contributes to improving your vocabulary and expression skills.

[4] Mugi the Cat Supports Your Writing
"I don't know what to write today"? Mugi the cat mascot solves that problem. In addition to providing daily topics (themes), it also offers hints such as questions to expand on the topic and useful English expressions while you're writing. When you get stuck, you can ask the AI ​​for English expressions, so you don't have to worry about running out of ideas or wondering "How do you say this in English?"

[5] Intimacy and Consecutive Records Make You Want to Continue
The more you write in your diary, the higher your intimacy level with the character becomes. Consecutive records (streaks) and weekly checks let you see your daily efforts at a glance. The game-like system makes you think "I'll write again today," encouraging you to make English learning a habit.

[6] You Can Review Past Diaries Anytime
You can review your written diaries anytime from a list, along with corrections, replies, and lessons learned. After a month, you'll be surprised at how much your English has improved. Your own English learning record will accumulate every day.

◆A Day with Englu
[Evening] Check today's topic and write a diary in English (even just 2-3 sentences are OK to start with)
[Immediately After Submission] Check spelling and grammar mistakes on the spot with AI corrections
[6:30 AM the Next Morning] A reply from the character arrives. Read carefully with the Japanese translation
[In the morning] Input higher-level English expressions through "learning"

The learning cycle of "write → correct → read → learn" flows effortlessly every day. This flow, which aligns with your daily rhythm—writing at night and receiving in the morning—is what sets englu apart from other English learning apps.

◆Easy 3-step usage

Choose a partner character (just enter a name. No email address registration or troublesome membership registration required)

Write a diary in English using today's topic as a reference (one entry per day, short sentences are OK)

Check the character's reply, corrections, and learning at 6:30 the next morning

You can start with just 5 minutes a day, making it perfect for spare time during your commute or relaxing before bed.

◆Partner Characters

・Ren: A calm and encouraging male character

・Rin: A bright and friendly female character

・Mugi: A cat mascot who supports you as you write your diary

You can switch partners anytime from the settings. Your intimacy level with each character is saved. ◆Why keeping an English diary is a shortcut to "usable English"

Outputting in your own words helps solidify learned vocabulary and grammar.
Writing daily hones your ability to quickly construct sentences, forming the foundation for English conversation and speaking.
Receiving immediate feedback through correction and learning means mistakes become opportunities for improvement.
Using "your own daily life" in English, rather than textbook examples, is the most efficient way to practice English.

◆Frequently Asked Questions
Q. Can beginners who are not good at English use it?
A. Yes, absolutely. Short sentences are fine. Mugi provides hints and topics, so you can start from a middle school English level.

Q. I don't know what to write about.
A. You'll receive a topic every day, so just write according to it. Mugi will also give you hints to expand on the topic while you're writing.

Q. How much time does it take each day?
A. Five minutes is enough. Try starting with short diary entries of two or three sentences.

Q. Is it free to use?
A. You can try all features for free for 7 days after registration. After that, the premium plan costs 420 yen per month and offers unlimited access to replies, corrections, learning, and AI support. You can also continue writing your diary for free.

Q. When will I receive a reply?
A. You will receive a reply at 6:30 AM the morning after you send your diary. Look forward to it in the morning!

Q. Can I change characters midway through?
A. Yes. You can switch between Ren and Rin at any time from the settings. Your intimacy level with each character will be saved, so feel free to switch.

Q. I've never been able to stick to a diary or study English before...
A. englu is a habit-forming app that provides multiple reasons to continue, such as "receiving a reply the next morning," "increasing intimacy," and "extending your streak." You don't need to write perfect English. Try the free trial period to see if it gives you a sense of continuation.

◆What you can do with Englu (summary)
- Create an English diary (with daily prompts, one entry per day)
- AI proofreading of English sentences (checks for spelling and grammatical errors)
- Replies from characters (switch between English text and Japanese translation)
- "Learning" that suggests higher-level English expressions
- Hints displayed while writing the diary, and questions to the AI ​​about English expressions
- Support for habit formation through intimacy level/consecutive record (streak)/weekly checks
- Review past diaries, corrections, replies, and learnings

◆Other ways to use it
- As a review notebook for English conversation schools or online English conversation lessons
- For daily practice of writing for TOEIC, Eiken, and university entrance exams
- For rehabilitation of English output before overseas travel or studying abroad
- As a first step for adults to relearn English
- Create a reward-based study habit with "diary x favorite character"

◆Notes on use
- Internet connection is required to use this service
- Replies, corrections, and learnings are generated by AI. The content may be inaccurate.
- Prices and campaign details are subject to change. Please check the in-app display for the latest information.

◆From the Development Team
English proficiency only comes from consistent practice. We know this, but from our own experience, "continuing" is the hardest part. That's why englu doesn't compete on the quantity of learning materials or features; instead, we focused on creating a single, compelling experience that makes you want to write again tomorrow. The replies from the characters are unique English learning materials, delivered after they've carefully read your daily life.

Write about your daily experiences in English and grow together with the characters.

Even if you struggle with studying or are a beginner in English, you'll surely stick with englu.

Try it free for 5 days and experience "mornings filled with replies."