Comparison

Diary with Lock vs Secret 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

Capture and cherish life's moments in a secure, beautifully designed digital journal. Add text, photos, and videos, track your mood and weather, and protect your entries with a passcode. Back up your memories to iCloud and export them as PDFs.

Highlights
  • Photo and text diary entries
  • Lock screen passcode protection
  • iCloud backup
  • Mood and weather tracking
  • Font customization
  • Intruder snapshots
  • PDF export
Features
Read full description

Welcome to iDiary – the ultimate diary app that combines the classic art of journaling with modern technology! With iDiary, you can easily capture and cherish all your precious moments in a beautifully designed and secure platform. Here are some of the key features that make iDiary the perfect diary app for you: - Photo and Text Diary Entries: Create rich and engaging diary entries by mixing text and photos and videos together. iDiary lets you capture your life's moments in an expressive and immersive way. - Lock Screen Passcode: Keep your diary entries safe from prying eyes with a secure lock screen passcode. Your secrets are safe with iDiary! - iCloud Backup: Never lose a single moment of your life again. iDiary automatically backs up your diary entries to iCloud, ensuring that all your memories are safe and secure. - Mood and Weather: Capture your mood and the weather each day to add an even deeper level of detail to your diary entries. - Font Customization: Choose from a variety of fonts to make your diary entries even more unique and personal. - Intruder Snapshots: iDiary automatically captures a photo of anyone who tries to access your diary without your permission. Keep your diary safe and secure at all times. - PDF Export: Export your diary entries as PDFs for easy sharing, printing, or archiving. Download iDiary today and start capturing all your precious moments in a secure and beautiful diary app! Privacy Policy: https://www.bytecrazy.com/common_privacy_en.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact Us: trudutton@gmail.com

About

Secret Diary

Securely record your thoughts, daily events, and journeys with this private diary app. It offers robust security features like Face ID, Touch ID, or passcode lock, and allows for extensive personalization with themes, fonts, and backgrounds. All entries are stored locally for maximum privacy.

Highlights
  • Face ID, Touch ID, passcode lock
  • iCloud backup and restore
  • Unlimited editing options
  • Add photos, backgrounds, fonts
  • Personalize with artistic themes
  • Local data storage
Features
Read full description

Secret Diary is a free diary journal app with high security. Your data is safe with iCloud backup and restore. This app use Face ID, Touch ID, or passcode lock to protect the security of your secret thoughts, daily diary and journeys. To ensure privacy and security, all your entry will only be saved on your device and not sent to any servers. Secret Diary provide unlimited dairy editing options, adding photos, backgrounds, fonts, moods, etc. Also, you can personalize this app with multiple artistic and kawaii themes. Everything is free! This App will protect your memories securely. Please try and enjoy it!

Screenshots

Diary with Lock4 screens
Secret Diary4 screens

Verdict

The call

The clearest difference is review sentiment: Secret Diary at 85% against Diary with Lock's 0%. Secret Diary also leads on in-app purchases (none vs 1) and rating (4.7 vs 4.2). On price, ads, device support and iOS requirement 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 1 in-app purchase, starting at $9.99 per year. Secret Diary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Secret Diary holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Secret Diary has 98 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 0% of Diary with Lock's written reviews are positive against 85% of Secret Diary's.

UpkeepUpdate frequency

Diary with Lock ships an update every 3 months, Secret Diary every 2 weeks. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

Scorecard6 real differences · 4 level
Diary with Lock versus Secret Diary: the parameters behind the verdict, then further details
ParameterDiary with LockSecret Diary
PriceFreeFree
Rating4.2 (19 ratings)4.7 (98 ratings) — better
Positive reviews0.0% of reviews85.0% of reviews — better
Number of ratings1998 — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better14.0
Further details — not scored
Size58 MB66 MB
Age rating4+4+
DeveloperHeyou Co., Ltd.Trang Le Thi

Customer experience

Diary with Lock

All ratings20 ratings
Positive80.0%
Neutral5.0%
Negative15.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Secret Diary

All ratings59 ratings
Positive86.4%
Neutral11.9%
Negative1.7%
Written reviews40 reviews
Positive85.0%
Neutral7.5%
Negative7.5%

Bugs and requests

Diary with Lock

Not enough reviews yet to summarise bugs or requests.

Secret Diary

Reported bugs

5 issues
  • Cannot get back to previous background themes
  • Lock screen appears after entries are visible
  • App crashes when phone is on airplane mode
  • Difficulty entering or recovering passcode
  • Passcode not visible or functional at times

Requested features

5 requests
  • Allow autocorrect while typing
  • Ensure lock screen appears first
  • Recover passcode when forgotten
  • Add backup feature
  • Enable Face ID/Touch ID for login

In-app purchases

1 purchases

Diary with Lock

Subscriptions1
  • iDiary Pro7 Days trial$9.991 Year
None

Secret Diary

No in-app purchases

Questions

Is Diary with Lock free?
Diary with Lock is free to download, with in-app purchases available.
Is Secret Diary free?
Secret Diary is free to download, with no in-app purchases.
Which has better reviews, Diary with Lock or Secret Diary?
Secret Diary is rated higher. Diary with Lock averages 4.2 out of 5 from 19 ratings, while Secret Diary averages 4.7 from 98 ratings.
Do Diary with Lock or Secret Diary have ads?
Neither Diary with Lock nor Secret Diary shows ads.
Which is updated more often, Diary with Lock or Secret Diary?
Diary with Lock ships an update every 3 months, and Secret Diary every 2 weeks. Most recently, Diary with Lock was updated on October 24, 2026 and Secret Diary on October 23, 2026.

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