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Android Apps > Lifestyle > 4 Lines Diary
App profile & analytics · Lifestyle · Data updated 2026-09-29
4 Lines Diary icon

4 Lines Diary

by Ishida-IT · Free · Version 1.3.1

“4 Lines Diary helps you make positive reflections and focus on your goals.” the developer's tagline

Availability On Google Play since January 2014 ↗
Rating on Google Play
–
At a glance AppBrain's trailer of this app, made from our data
Rating
–
0 reviews
Total installs
4.8
thousand
Installs, last 30 days
0
Best rank
–
not in the top lists
Last updated
July 6, 2025
1.3.1
AppBrain's verdict EstablishedNiche

4 Lines Diary is a niche app, with 4.8 thousand installs. It doesn't have enough ratings yet to judge what users think.

4 Lines Diary is made and published by Ishida-IT. AppBrain is an independent app data site and isn't affiliated with Ishida-IT. The app name, icon, screenshots and description belong to Ishida-IT and are shown as published on Google Play.

About 4 Lines Diary

4 Lines Diary is a lifestyle app developed by Ishida-IT.

How many times has 4 Lines Diary been installed?

4 Lines Diary has been installed 4.8 thousand times. In the last 30 days, the app was installed 0 times.

What is the rating of 4 Lines Diary?

4 Lines Diary has no ratings yet.

Is 4 Lines Diary free?

4 Lines Diary is free. The app size is 6.23 MB. The latest version available is 1.3.1. The last update was on July 6, 2025.

What are the requirements for 4 Lines Diary?

4 Lines Diary requires Android 2.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since January 2014.

Description by Ishida-IT (from Google Play)
This is the easiest way to keep record of your life.
It helps you make positive reflections each day and focus on your goals.

Four Lines Diary is a method for a self-expanding-program, developed by Dr. Keichi Kobayashi.

The diary consists of four sentences which describe Fact, Discovery, Lesson and Declaration for each day.
Each sentence should be concise and related to each other.

=== Fact ===
Write the most important thing you had in the day. Try to make it as simple as possible, and not to include your thoughts or opinions.

=== Discovery ===
Write what you found in the fact. It could be a very trivial stuff. When you get accustomed, it will be easier to discover a new thing everyday.

=== Lesson ===
Write what you have learned from the discovery. Try to generalize or abstract it to be applicable in the future. You can use a kind of proverb or you can write in your own phrase.

=== Declaration ===
It should be an affirmative, positive phrase that illustrates your future goal. Start with 'I' and describe yourself in present tense as if you already achieved that goal. For example, "I am a successfull business person who completes his sales goal every month." "I am an excellent teacher who always inspire his students with new ideas." "I respect everyone in the company and always treat them with love." "I make everyone laugh at least twice a day."

After practicing for a month, you will notice positive changes in your life!
Why don't you give it a try!

Recent changes:
We have made updates to support the latest version of Android.
Show more Show less

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Screenshots

4 Lines Diary Screenshot 1 of 4
4 Lines Diary Screenshot 2 of 4
4 Lines Diary Screenshot 3 of 4
4 Lines Diary Screenshot 4 of 4
Screenshots by Ishida-IT, from the Google Play listing
Official page on Google Play

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Installs over time

4 Lines Diary has been installed 4.8 thousand times. Over the past 30 days, it has been installed 0 times.

Changelog of 4 Lines Diary

Show changelog

Developer information for Ishida-IT

Ishida-IT

apps@ishida-it.com

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Comments on 4 Lines Diary for Android

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Google Play Rankings for 4 Lines Diary

This app is not ranked

Technologies used by 4 Lines Diary

8 permissions · 1 libraries
Subscribe to see full permission and library details

Frequently asked questions about 4 Lines Diary

Is 4 Lines Diary free?

Yes. 4 Lines Diary is free on Google Play.

Is 4 Lines Diary still available?

Yes. 4 Lines Diary is on Google Play, and the last update we saw was on July 6, 2025.

Does 4 Lines Diary contain ads?

Yes. Google Play lists 4 Lines Diary as containing ads.

What Android version does 4 Lines Diary require?

4 Lines Diary runs on Android 2.3 and higher.

How large is 4 Lines Diary?

4 Lines Diary is 6.23 MB.

Is 4 Lines Diary suitable for children?

Google Play rates the content of 4 Lines Diary as suitable for everyone.

How many times has 4 Lines Diary been installed?

Google Play lists 1,000+ installs for 4 Lines Diary.

Who made 4 Lines Diary?

4 Lines Diary was developed by Ishida-IT. It is listed in the lifestyle category on Google Play.

What are the best alternatives to 4 Lines Diary?

People looking at 4 Lines Diary also look at these lifestyle apps: 3LINE - Three Lines Are Enough, Heart Diary: Mood Journal, Three Good Things - Gratitude, Life Note: AI Journal & Diary, Pensive Journal - Mood Diary.

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Daily Journal: Diary with lock icon Daily Journal: Diary with lock
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My Diary With Lock - Notebook icon My Diary With Lock - Notebook
Overview Alternatives History Reviews Rankings Technology
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