Use "Diary with lock" app to make your own personal journal of daily events, appointments, secrets and feelings.

• Diary with lock: Password & pin code protection
• Diary with lock: Personalize background color (Pink, Purple, Blue, ++)
• Diary with lock: Change font-style
• Diary with lock: Easy to use
• Diary with lock: Search entries
• Diary with lock: Make unlimited entries
• Diary with lock: Support 3 languages: English, Japanese, Vietnamese.
• Diary with lock: The most downloaded diary app on AppStore!

Build from the ground up to be simple and user friendly, the user interface is designed to allow you to enter new notes quickly and easily. With this Diary you can write all your private notes and secure them with a pin code or password.

* Track and write about your daily activities
Make it a habit to quickly write one or more mini-notes during your day. Simply leave a few words about your workout session, what happened at school or in the office during your day. In weekends, you can write about all the fun you had walking your dog, meeting with friends, or being social with your family. Make it a unique travel diary, or road journal that documents your journey. This can be the daily activity log you always have wanted. Make it your personal journal and have fun reading it over in few year, and share a few laughs with your friends. As this app is pure textual, and contains no images or photos, it runs ultra fast and smooth on any iOS device, and consumes minimal of available memory and disk-space!

* This diary is perfect to use as:

1. Diet journal
A food diary is a daily record of all food consumed as a means of tracking calorie consumption, weight loss or other nutritional monitoring.

2. Dream journal
Or dream diary is a journal in which dream experiences are recorded for later analysis and possibly oneiromancy.

3. Sleep diaries
A sleep log is a tool used in diagnosis of sleep disorders.

4. Travel journals
A travel diary, or road journal, is valuable documentation of a journey. (only textual, no images or photos)

5. Write your own Autobiography
This diary app can easily fit the purpose of a writing down your memoir or chronicle. Keep a log or logbook to record history. Do like famous Anne Frank, make daily records, document life in your own daybook.

Never forget a journal entry again, setup a reminder to alert you when it is time to write. Protect all personal notes by adding a pin code when it starts up. Never worry about losing memories again. Easily send a backup of diary entries directly to email for extra protection.

What’s New

Version 1.4

Thank you for using our app. We've changed something with new version:
- Add in-app purchase to remove advertising anymore.
- Fix bug font text on create diary screen.

Ratings and Reviews

4.5 out of 5
6 Ratings

6 Ratings


Tuyen Bui
28.8 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Japanese, Vietnamese

Age Rating
Rated 4+
In-App Purchases
  1. Diary with lock-No Advertising RM44.90


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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