Secret Diary – Lock with PIN

Vitaliy Chabelets

About this app

Secret Diary is a calm, private place to write down what you think and feel — the thoughts you keep to yourself, the small moments you want to remember, and the moods that shape your day.

Whether you journal every day or only when you need to clear your head, Secret Diary helps you capture life in a way that feels personal, organized, and safe.

WRITE YOUR WAY
• Create rich diary entries with titles and text
• Add photos from your camera or gallery
• Use tags to organize entries by life, work, travel, goals, and more
• Mark favorite notes to find important memories quickly
• Choose from ready-made templates: daily reflection, gratitude journal, story entry, goals & progress, and more
• Personalize pages with stickers and wallpapers
• Use lists inside notes when you want structure, not just paragraphs

UNDERSTAND YOUR MOOD
• Log how you feel with emoji moods on each entry
• Browse notes on a calendar and see your writing over time
• Explore mood trends and emoji breakdowns in Statistics
• Notice patterns in your emotions and build a clearer picture of yourself

KEEP IT PRIVATE
• Protect your diary with a PIN lock
• Your entries are stored on your device — your journal stays yours
• Optional backup helps you save and restore notes when you need it

STAY ORGANIZED
• Calendar view shows entries by date
• Search and filter notes by tags
• Favorites section for the entries that matter most
• Clean, easy-to-use design with light and dark display modes

MAKE JOURNALING A HABIT
• Unlock achievements as you write, tag, add photos, and build streaks
• Gentle motivation to keep coming back to your diary
• A welcoming onboarding flow to help you get started in minutes

DESIGNED FOR YOU
• Simple, beautiful interface made for everyday writing
• Available in English and Russian
• Support is just a tap away if you need help

PREMIUM (OPTIONAL)
Upgrade to Premium for extra personalization and convenience, including cloud backup & restore, exclusive emoji packs, additional wallpapers and themes, deeper insights, and an ad-free experience when ads are introduced. Subscriptions are optional and can be managed in Google Play settings.

Secret Diary is for anyone who wants a private notebook on their phone — not a social feed, not a public blog, just a quiet space that belongs to you.

Download Secret Diary and start writing today

What’s new

Added Ukrainian and Poland languages