Comparison

Diary with lock vs Simple Diary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Diary with lock

Create a secure personal journal to record daily events, thoughts, and secrets. Protect your entries with a password or PIN code and customize the look with different colors and fonts. This app offers a simple, fast, and user-friendly way to document your life.

Highlights
  • Password & PIN code protection
  • Customizable background colors
  • Changeable font styles
  • Easy-to-use interface
  • Searchable entries
  • Unlimited entries
  • Multi-language support
Features
Read full description

Use "Diary with lock" app to make your own personal journal of daily events, appointments, secrets and feelings. ****************FEATURES**************** • 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. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://privacy-policy-site-five-nu.vercel.app

About

Simple Diary

This app provides a simple and convenient way to journal your thoughts and experiences. It allows you to add images, secure your entries with a passcode, and customize the app's appearance. Data backup and search functions ensure your memories are safe and easily accessible.

Highlights
  • Insert images into entries
  • Secure passcode lock (Face ID/Touch ID)
  • Customizable theme colors and app icon
  • Data backup to iTunes/PC and cloud services
  • Tag-based search for entries
  • Adjustable text font size and color
  • Daily reminder notifications
Features
Read full description

Simple Diary is a simple, easy-to-use free diary app where you can save photos along with your entries. Use it for daily journaling, baby milestones, travel memories, a record of your pet's growth, or a secret diary just for you. Clean, simple screens help you keep going, even if diaries never stuck before. No account registration. Download it and start writing. Your diary stays on your device, and the app works offline. [Features] ■ Add Photos to Entries (Up to 10 per Entry) Like a blog, insert images between paragraphs. Attach photos from your camera roll. ■ Secure Passcode Lock Protect your diary with a passcode. Supports Face ID and Touch ID for quick, secure access. ■ 22 Font Styles Change the look of your diary with 22 font styles, from cute to classic serif. (Some fonts are premium.) ■ Theme Colors and App Icons Choose from 19 theme colors, from cute to cool. You can also change the app icon. (Requires the latest iOS version.) ■ Data Export Export your diary as PDF, HTML, RTFD, or TXT files (premium service). Open them on a computer to reread your diary on a bigger screen, or print entries on paper. ■ Turn an Entry into an Image or PDF Save an entry as one image or a PDF to post to social media, send to family, or print. ■ Data Backup Back up your data to iCloud or your computer. RTFD export (premium service) lets you move your entries to your notes app or cloud storage. ■ iCloud Backup Back up your diary to iCloud and restore it on another device (premium service). It is a manual backup, not automatic sync: back up on your iPhone, then restore on your iPad. ■ Calendar and List Views Look back at your diary on a calendar or as a list. Tap a date to reread that day. ■ Tag Search Use the built-in search to find entries quickly. Write a tag such as "#travel" in the text, and searching for it brings up just those entries. ■ Font Settings Adjust text size, contrast, and line spacing. Great if you prefer larger text. ■ Reminders Set a reminder time and get a push notification, so you don't forget to write. ■ Multiple Entries Per Day Write one entry per day, or add several for memos, work records, or passing thoughts. Change an entry's date and time to write about past days. There is no limit on entry length. [Pricing] The core diary features are all free: entries, photos, passcode lock, search, and reminders. The free version shows ads. The premium service removes all ads and unlocks iCloud backup, data export, all theme colors, and all font styles. Premium is available as a monthly plan, a yearly plan, or a one-time purchase, all with the same features, and covers both your iPhone and iPad under the same Apple Account. [Your Data] Your diary is stored on your device and is not synced to the cloud automatically. To protect your data, use the premium iCloud backup or Apple's iPhone backup. There is no feature to publish your diary or share it with other users. To show someone an entry, turn it into an image and send it. A backup moves your data to a new iPhone. Data transfer to or from other operating systems is not supported. [Perfect For] ■ Students A secret diary for your day, your feelings, and your crushes. Writing out what you can't post online helps you feel lighter. ■ Parents Record your pregnancy and your baby's growth as a photo diary. Write several entries a day, and share special pages with family as images. ■ Anyone Who Wants to Keep a Record Travel journals, reading and movie notes, food diaries, dream journals, daily work logs, or your pet's growth. Simple Diary fits whatever you want to remember, one day at a time. [Help, Feedback] For help, go to "Help / FAQ" in the app settings. Still have questions? Tap "Feedback" on the settings screen to contact us for faster support. Terms of Use: https://komorebi-studio.com/tos_en.html Privacy Policy: https://komorebi-studio.com/policyredirect.html

Screenshots

Diary with lock4 screens
Simple Diary4 screens

Verdict

The call

The clearest difference is ads: Diary with lock at none against Simple Diary's shown. Simple Diary's advantage is rating (4.8 vs 4.3) and review sentiment (78% vs 66%). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Diary with lock sells 3 in-app purchases, starting at $9.99 per month and Simple Diary sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Simple Diary holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 1.2K and 909 respectively. Written reviews point the same way: 66% of Diary with lock's written reviews are positive against 78% of Simple Diary's.

UpkeepUpdate frequency

Diary with lock ships an update every 6 weeks, Simple Diary every 2 months. Both last shipped on November 11, 2026.

Scorecard3 real differences · 7 level
Diary with lock versus Simple Diary: the parameters behind the verdict, then further details
ParameterDiary with lockSimple Diary
PriceFreeFree
Rating4.3 (1.2K ratings)4.8 (909 ratings) — better
Positive reviews65.6% of reviews78.3% of reviews — better
Number of ratings1.2K — better909
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size39 MB206 MB
Age rating4+4+
DeveloperTuyen BuiKomorebi Inc.

Customer experience

Diary with lock

All ratings1,247 ratings
Positive81.7%
Neutral5.0%
Negative13.3%
Written reviews160 reviews
Positive65.6%
Neutral8.1%
Negative26.3%

Simple Diary

All ratings908 ratings
Positive95.0%
Neutral2.8%
Negative2.2%
Written reviews415 reviews
Positive78.3%
Neutral9.9%
Negative11.8%

User reviews

Diary with lock

From 1.2K App Store ratings

What we love

  • 🔒 Secure with password protection
  • ✨ Customizable fonts and colors
  • 📝 Easy to write entries
  • 💻 Convenient digital diary

Room to improve

  • 💸 Too many ads interrupting writing
  • 🐛 Crashes and glitches when trying to write
  • 💾 No backup or data recovery options
  • 🔍 Partial visibility of entries even when locked

Simple Diary

From 909 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 📷 Ability to add photos
  • 🔒 Password protection
  • 🗓️ Organized by calendar view
  • 🔍 Effective search functionality

Room to improve

  • 🐛 Occasional crashes or freezes
  • 📁 Limited photo upload capacity
  • 💰 Paywall for some features
  • 🔄 Inconvenient manual backup/restore process
  • 🎨 Limited font and theme options in free version

Bugs and requests

Diary with lock

Reported bugs

3 issues
  • Entries randomly disappearing
  • Constant redirects to ads when trying to write
  • Login/password reset not working properly

Requested features

4 requests
  • Backup and sync entries across devices
  • Fingerprint/Face ID support for locking
  • Ability to change font size and color
  • Option to disable ads for paid users

Simple Diary

Reported bugs

3 issues
  • Some characters not displaying properly
  • Calendar dates not always accurate
  • Deleted entries not recoverable

Requested features

5 requests
  • Automatic iCloud/Google Drive sync
  • More font and theme customization options
  • Video recording and embedding
  • Ability to add tags or categories to entries
  • One-tap access to previous day's entry

In-app purchases

3 purchases

Diary with lock

Subscriptions1
  • Cloud Sync Monthly$9.991 Month
One-time2
  • Donate to Developer$5.99
  • Diary with lock-No Advertising$8.99
3 purchases

Simple Diary

Subscriptions2
  • Premium (Monthly)$3.991 Month
  • Premium (Annual)7 Days trial$19.991 Year
One-time1
  • Premium Service (Lifetime)$69.99

Questions

Is Diary with lock free?
Diary with lock is free to download, with in-app purchases available.
Is Simple Diary free?
Simple Diary is free to download, with in-app purchases available.
Which has better reviews, Diary with lock or Simple Diary?
Simple Diary is rated higher. Diary with lock averages 4.3 out of 5 from 1.2K ratings, while Simple Diary averages 4.8 from 909 ratings.
Do Diary with lock or Simple Diary have ads?
Simple Diary shows ads; Diary with lock does not.
Which is updated more often, Diary with lock or Simple Diary?
Diary with lock ships an update every 6 weeks, and Simple Diary every 2 months. Most recently, Diary with lock was updated on November 11, 2026 and Simple Diary on November 11, 2026.

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