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Lock Notes: Private Journal

LYKOV STUDIO LTD · Productivity · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card
Revenue a month, worldwide EST
$440
Likely $147 to $1.3K
New ratings
Tracking
Daily counts start building from today
Rating
4.4 of 5
138 ratings in this store
Countries it ranks in
0
was 0 on Oct 18, 2026

Revenue

Estimated from the grossing charts of Oct 25, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$5.3K
2.7 new ratings a month on average since launch
EST. LIFETIME DOWNLOADS
4.8K to 13.8K
Estimated from ratings count
WHERE ITS USERS ARE · SHARE OF RATINGS
  • United States 138 ratings48%
  • United Kingdom 57 ratings20%
  • Canada 23 ratings8%
  • Australia 13 ratings5%
  • Pakistan 13 ratings5%
  • South Korea 13 ratings5%
  • Saudi Arabia 9 ratings3%
  • France 8 ratings3%
HOW SURE ARE WE
Not in any grossing chart, so this comes from ratings growth (2.7 new ratings a month on average since launch): revenue grows with new ratings, more slowly for apps that collect ratings fast. Tested on 418 apps with verified revenue: typically off by about 2 times, and big earners tend to come out low. 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
138
AVG RATING
4.38
PRICE
Free
AGE
9.6y
LAST UPDATE
14d ago
VERSION
4.0.3
SIZE
23 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
0 / 30
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · APP STORE ONLY EST
Show daily values
Sep 26, 2026not in a grossing chart
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026not in a grossing chart
Oct 11, 2026not in a grossing chart
Oct 12, 2026not in a grossing chart
Oct 13, 2026not in a grossing chart
Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026not in a grossing chart
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Oct 23, 2026not in a grossing chart
Oct 24, 2026not in a grossing chart
Oct 25, 2026not in a grossing chart
Best rank Sep 26, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
5 purchases listed
  • Lifetime$39.99
  • Monthly$7.99
  • Annual$29.99
  • Weekly$4.99
  • Disable ads$0.99
Top in-app purchases as listed on the App Store, in local prices.
REVIEW MOMENTUM
0.0 reviews / week
  • Recent reviews average2.9 stars
  • Recent 1 and 2 star share54%
From the latest 13 written reviews, covering 2997 days.
RELEASE CADENCE
2 updates in 90 days
  • Typical gap between releases10 days
From the last 25 versions listed on the App Store.

What users want

From the latest 13 reviews on the United States App Store, Aug 12, 2018 to Jun 24, 2026: 54% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Price and subscription29%

2 of the 1 and 2 star reviews.

★★★★★ some people; like me, don't want and don't have the money to get premium on a note taking app?
Too many ads29%

2 of the 1 and 2 star reviews.

★★★★★ I paid for this app and I still get ads every time I open it.
★★★★★ Why am I paying and still seeing ads?
WHAT THEY ASK FOR

No feature requests in the latest reviews.

WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Easy to use33%

2 of the 4 and 5 star reviews.

★★★★★ Finally I found a quick and easy app I can use with face recognition

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.

★★★★★Jun 24, 2026
Sucks!

The pay firewall came up and wouldn’t let me bypass anymore. I had to pay to get back to my notes. Was frustrating. Switches to obsidian.

★★★★★Jan 26, 2026
haha

are u sure secret

★★★★★Feb 6, 2025
Stopped working

Can’t contact developer. It bounces. Asked for money again. Paid it and still not allowed to do anything. Can’t get in touch for a refund or help.

★★★★★Jan 3, 2025
Excellent

Don’t know what I would do without it. Although during one of my updates I did lost the app as it didn’t update itself as well. This was several years ago so hoping it won’t occur again!!

★★★★★Apr 10, 2024
Amazing!

It’s so good for making song lyrics and for just expressing your emotions that you can’t tell to others

★★★★★Dec 25, 2022
LOVE

I LOVE THIS APP I LOVE HOW ITS FREE AND YOU CAN PUT FACE ID OR PASSWORD.

Store screenshots

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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.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

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

notes6writing4keep3personal3write3text3find3keeps3lists2journal2share2choose2deleted2cloud2lykovstudio2

What's new in 4.0.3

• iOS 27 Support • Format notes with headings, lists and checklists. • Add photos inside your notes. • Export TXT and formatted PDF files, or print a copy. • Restore notes from Recently Deleted for up to 30 days.

Released Mar 8, 2017. Current version shipped Oct 12, 2026.

Store description

Keep a personal notebook for your thoughts, diary entries, ideas and everyday lists. Lock Notes gives your writing its own space, with a passcode and supported biometric unlock to control access. WRITE THE WAY YOU THINK Give long notes structure with headings, bold and italic text, lists and checklists. Add photos directly into your writing, keep a simple journal, or capture an idea before it slips away. FIND WHAT MATTERS Search your notes and find text inside an open note. Automatic saving keeps your edits as you write and when you leave the editor. A clean layout keeps the focus on your text. TAKE YOUR WRITING WITH YOU Export notes as TXT or formatted PDF, share the notes you choose, and print a copy. Use exports for a personal archive, a draft to continue elsewhere, or a list to share. RECOVER AN ACCIDENTAL DELETION Recently Deleted keeps removed notes for up to 30 days, so you can restore one before it is permanently deleted. CHOOSE HOW YOU WORK Write with local storage, adjust the appearance, and use a light or dark interface. Optional cloud synchronization is available with Premium and a compatible cloud account. From a short memo to a longer personal journal, keep your writing easy to find and comfortable to read. - Privacy Policy: https://lykovstudio.io/privacy - Terms of Use: https://lykovstudio.io/terms

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

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