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Simple Diary - Daily Journal

Komorebi Inc. · Lifestyle · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card Google Play version →
Revenue a month, worldwide EST
$91.9K
Likely $30.6K to $275.8K
▲ 188.2% in 11 days
New ratings
+5
in 1 days, 150K in total
Rating
4.8 of 5
909 ratings in this store
Countries it ranks in
3
was 2 on Oct 16, 2026

Revenue

Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$1.1M
Not ranked on Google Play in tracked countries
EST. LIFETIME DOWNLOADS
31.8K to 90.9K
Estimated from ratings count
WHERE IT EARNS · EST. / MONTH
  • Japan #57 Lifestyle$79.3K · 86%
  • Hong Kong #44 Lifestyle$9.6K · 10%
  • Taiwan #64 Lifestyle$3K · 3%
HOW SURE ARE WE
Small app: combines its grossing ranks with ratings growth (1520 new ratings a month on average since launch). Tested on 418 apps with verified revenue: typically off by about 2.6 times, so the range is wide. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
909
AVG RATING
4.75
PRICE
Free
AGE
8.2y
LAST UPDATE
38d ago
VERSION
5.3.0
SIZE
206 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart and daily ratings counts.

DAYS IN A GROSSING CHART
30 / 30
COUNTRIES NOW
3 (was 1)
NEW RATINGS, LAST 1 DAYS
+5
EST. REVENUE A MONTH, DAILY · BOTH STORES EST
Show daily values
Sep 24, 2026$91.2K a month
Sep 25, 2026$91.1K a month
Sep 26, 2026$89.9K a month
Sep 27, 2026$91.1K a month
Sep 28, 2026$91.1K a month
Sep 29, 2026$94.2K a month
Sep 30, 2026$91.1K a month
Oct 1, 2026$91.1K a month
Oct 2, 2026$89.8K a month
Oct 3, 2026$89.8K a month
Oct 4, 2026$88.9K a month
Oct 5, 2026$88.9K a month
Oct 6, 2026$88.9K a month
Oct 7, 2026$88.9K a month
Oct 8, 2026$88.9K a month
Oct 9, 2026$88.3K a month
Oct 10, 2026$88K a month
Oct 11, 2026$88K a month
Oct 12, 2026$88K a month
Oct 13, 2026$275K a month
Oct 14, 2026$268.2K a month
Oct 15, 2026$263.5K a month
Oct 16, 2026$188.3K a month
Oct 17, 2026$155.8K a month
Oct 18, 2026$250.7K a month
Oct 19, 2026$241.2K a month
Oct 20, 2026$231K a month
Oct 21, 2026$253.5K a month
Oct 22, 2026not in a grossing chart
Oct 23, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 24, 2026: #48 Lifestyle · JP. Now: #62 Lifestyle · JP.
RATINGS IN THE CORE COUNTRIES, DAILY
Show daily values
Oct 22, 2026150K ratings
Oct 23, 2026150K ratings
150K on Oct 22, 2026, 150K on Oct 23, 2026. New ratings track new downloads, even outside the charts.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
3 purchases listed
  • Premium Service (Lifetime)$69.99
  • Premium (Annual)$19.99
  • Premium (Monthly)$3.99
Top in-app purchases as listed on the App Store, in local prices.
REVIEW MOMENTUM
0.1 reviews / week
  • Trendsteady
  • Recent reviews average3.9 stars
  • Recent 1 and 2 star share22%
From the latest 27 written reviews, covering 2855 days.
RELEASE CADENCE
1 update in 90 days
  • Typical gap between releases40 days
From the last 25 versions listed on the App Store.
RATING BREAKDOWN
909 ratings
5★83%
4★12%
3★3%
2★1%
1★1%

What users want

From the latest 27 reviews on the United States App Store, Dec 29, 2018 to Nov 17, 2025: 22% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Lost data, sync, backup67%

4 of the 1 and 2 star reviews.

★★★★★ Locking iCloud backup behind a paywall is absolute nonsense!!!
★★★★★ I'm so scared if I delete the app I'll lose all of what I've done on it.
★★★★★ I've added entries for from Saturday 1/6 through Tuesday 1/10. Tonight I opened the diary to add journal for 1/11 and I find what I wrote for Sunday and Tuesday missing?
WHAT THEY ASK FOR
  • I would love to see that feature added in the future. 4★, Aug 6, 2022
  • I wish there were more colors and fonts, and I also REALLY wish you could put certain entries in one font while others are different instead of it customizing the entire diary. 4★, Jul 14, 2022
  • Can you make it so that this app uses iCloud instead of iCloud Drive? 4★, May 10, 2020
  • I wish there were more colored themes. 5★, Jun 26, 2019
  • I love the simplicity of this app, but I feel like a diary should have more personalized settings. 5★, Dec 29, 2018
  • I feel like there should be more layout options and it would be great if you could make a setting that could make it look like a day planner. 5★, Dec 29, 2018
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Easy to use32%

6 of the 4 and 5 star reviews.

★★★★★ But this simple Diary is the only one that fits the bill.
★★★★★ Simple and easy to use in iOS both iPhone and Ipad.
★★★★★ I used it for all my iPhone and iPad, it's easy to use, Thanks to the developer
Looks great11%

2 of the 4 and 5 star reviews.

★★★★★ This is an affordable app and easy to use. I just wanted a place to write down my daily thoughts and feelings and able to change fonts. After trying g out many other, this is the one. The layout, the ability to change…
★★★★★ I LOOOVE this app for its simple design compared to all the other diary apps, but sometimes, it's too simple.
Worth the money11%

2 of the 4 and 5 star reviews.

★★★★★ This is an affordable app and easy to use.
★★★★★ If you can't add email and password sign-in, at least make the iCloud backup free.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States App Store.

★★★★★Nov 17, 2025
icloud同步都没有

付费才能知道没有自动同步功能,体验很差

★★★★★Nov 16, 2024
Great journal

I searched for a diary or journal for several years. I even tried a couple. But this simple Diary is the only one that fits the bill. I’ve only had it 3 years, but it keeps my info daily, & with pictures if I choose. I am a premium member. I recently purchased a new iPad and updated it with the journal for no extra fee. I’m still trying to bring my history to this iPad, but not really sure I will. I’ve got it backed up to my iCloud, so not sure I need the last 3 years taking up space on this device.

★★★★★Jul 5, 2024
Great but one thing please

So like it’s really good but it is missing some things. So first, there’s a bug where it randomly crashes. Second, my grandma was reading it but she accidentally deleted it. And I can’t get my hard work back. Can you pls add something to restore deleted things. Edited. I updated it and it came back thanks

★★★★★Jun 30, 2024
Don’t do it

Locking iCloud backup behind a paywall is absolute nonsense!!!

★★★★★Jun 19, 2024
Good app

I haven’t had this app for a long time so I gave it 3 ⭐️s I like this app because u can add passwords and us ur finger print to open the app. So know one can open this app without u so thy don’t no ur secrets.🤫🧏‍♀️☺️🫥👍🏻👍🏻👍🏻👍🏻👍🏻good app 30/60 yes 👍🏻

★★★★★Mar 10, 2024
APP IS FROZEN for 3 days now

I’ve been using this app for awhile now almost everyday, I have so much information in it but for the past 3 days now it’s been frozen. I’m so scared if I delete the app I’ll lose all of what I’ve done on it. I don’t know how to get ahold of the developers to let them know besides on here. Please help!!!!!

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Store screenshots

ScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshot

App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

No App Store ads in the EU
None in the last 90 days.

Apple only publishes ads shown in the EU (EU Digital Services Act), with a 7 day delay. An app that advertises only outside the EU shows nothing here.

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

diary16entries9data8entry7backup7day6icloud5write5font styles5theme colors5icloud backup5simple4photos4help4font4export4service4back4time4simple diary3pet growth3secret diary3entries per3passcode lock3

What's new in 5.3.0

What's New - Photo storage fix — Attached photos were being saved at much larger sizes than needed, and leftover cache was steadily growing the app's storage footprint. Both issues are fixed, so the app stays lighter over time. Thank you to everyone who reported this. - Smoother editing — Starting to edit a long entry no longer jumps the scroll position. - Better image & PDF export — A redesigned preview lets you check the result before saving or sharing. - Improved photo display on iPad & Mac — Attached photos now appear at a comfortable size while reading. Tap to enlarge as before. - Copy & paste images again — Paste images copied from a browser directly into your diary, no need to save them to your device first. - Other improvements — Refreshed Help Center with more languages, fixed banner ads unexpectedly playing sound, updated premium plan screen, SDK updates and stability improvements. -------- Found a bug or have a request? Reach us anytime via "Contact" in the app. If you enjoy Simple Diary, a review on the App Store would mean a lot to us.

Released Aug 5, 2018. Current version shipped Sep 14, 2026.

Store 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

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Prices, ranks and reviews are per country. Revenue above is already worldwide.

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