Comparison

Locked Secrets Diary vs Dear Diary

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

Head to head
About

Locked Secrets Diary

Features
Read full description

The diary that never reveals the truth. Most diary apps protect your notes until someone asks you to unlock them. Locked Secrets Diary is different. It never tells anyone whether a PIN is right or wrong. Enter your real PIN and you'll see your private diary. Enter any other PIN and the app opens normally - without warnings, error messages, or suspicious behavior. It simply shows the diary for that PIN, whether that's an empty vault or convincing decoy entries you've prepared. Only you know which PIN unlocks your real life. Privacy designed for the real world. Sometimes privacy isn't about hackers. It's about moments when someone asks, expects, or pressures you to unlock your phone. Locked Secrets Diary gives you something ordinary diary apps cannot: plausible deniability. • Your real PIN opens your private journal • Every other PIN is also accepted • The app never displays "Incorrect PIN" • There are no warning messages • There is no clue that another, more private diary exists If someone asks for your PIN, you can provide a different one. The app behaves exactly the same, showing only the entries associated with that PIN. The truth remains yours alone. Even we can't read your private entries. Your secret diary is encrypted before it ever leaves your device, making it unreadable to anyone except you. Security that works when it matters. Your privacy should never depend on remembering to hide your screen. That's why Locked Secrets Diary includes thoughtful protections built for everyday life: • Every PIN creates its own completely separate encrypted diary • One-tap Instant Exit immediately leaves Secret Mode and returns to your regular diary • Automatic lock after 30 seconds of inactivity • Face ID and Touch ID support for fast, secure access • Private entries remain isolated from your everyday journal • Multiple secure vaults for different levels of privacy Your everyday diary - plus your private one. Locked Secrets Diary isn't only about security. It's also a beautiful journal you'll enjoy using every day. Record daily moments, organize thoughts with tags, track your mood, browse your memories in calendar view, and quickly search past entries. Use your regular diary for everyday life while keeping your most personal thoughts protected inside your private vault. Available wherever you are Your diary travels with you • Secure sync across your devices • Works offline whenever inspiration strikes • Changes sync automatically when you're back online • Sign in easily with Apple or Google Whether you're at home, traveling, or away from an internet connection, your journal is always available. Built for peace of mind. Privacy isn't just about encryption. It's about feeling safe enough to write honestly. Whether you're protecting deeply personal thoughts, keeping a private journal while traveling, separating work and personal reflections, or simply valuing your own space, Locked Secrets Diary helps ensure your most important thoughts stay yours. Because true privacy isn't proving you have secrets. It's making sure nobody can tell. Download Locked Secrets Diary today and experience a diary designed for the real world - where every PIN looks right, and only you know which one tells the truth.

About

Dear Diary

Features
Read full description

Dear Diary — Your Personal Journal App Capture every precious moment of your day. Dear Diary is a personal diary app that beautifully preserves your emotions and memories. Key Features - Calendar View See all your diary entries at a glance by date. - Write Your Diary Freely record your feelings, thoughts, and precious moments of the day. - Search Quickly find past entries with keyword search. - Themes Choose from beautiful, emotional themes to make it truly yours. - Multi-language Support Available in Korean, English, and Japanese. -Your Private Space Only you can see your diary. Kept safe and secure. Start now and write your story today

Screenshots

Locked Secrets Diary4 screens
Dear Diary3 screens

Verdict

The call

The clearest difference is iOS requirement: Dear Diary at 15.0 against Locked Secrets Diary's 17.6. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Ā· 5 level
Locked Secrets Diary versus Dear Diary: the parameters behind the verdict, then further details
ParameterLocked Secrets DiaryDear Diary
PriceFreeFree
Update frequencyEvery 4 days—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size14 MB3 MB
Age rating9+17+
DeveloperRoman RudychHyejoo Jeon

In-app purchases

None

Locked Secrets Diary

No in-app purchases

None

Dear Diary

No in-app purchases

Questions

Is Locked Secrets Diary free?
Locked Secrets Diary is free to download, with no in-app purchases.
Is Dear Diary free?
Dear Diary is free to download, with no in-app purchases.
Do Locked Secrets Diary or Dear Diary have ads?
Neither Locked Secrets Diary nor Dear Diary shows ads.

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