A Quiet Space for Overwhelmed Minds

A sanctuary for your mind.

When anxiety, overthinking, or burnout feels too heavy, Lugna gives you a quiet space to breathe, reflect, and gently untangle your emotions. Your thoughts belong only to you. Sealed on your device, so no one else can ever read them.

100% Private (Only You Can Read It)
No Ads, Trackers, or Data Selling
Gentle CBT & Mood Reflection
Lugna daily mood check-in journal screen on iPhone
Daily Mood Check-In • iPhone
Complete Peace of Mind

Your thoughts belong only to you. Not even we can read them.

Writing down your deepest fears, anxieties, and vulnerable thoughts requires unconditional safety. Lugna locks your reflections on your device before they ever sync. No employees, no advertisers, and no algorithms can ever see inside your journal.

100% Sealed
Your thoughts are sealed into an unreadable lockbox on your phone before saving or syncing.
12-Word Key
A simple offline recovery phrase keeps you in total control across all your devices.
0 Trackers
Zero analytics trackers, no ad networks, and zero selling of your personal reflections.
Only on Screen
Plain, readable entries exist only on your screen while you use the app.
1
You Write Freely
Safe in your private space
2
Sealed Instantly
Locked right on your device
3
Scrambled in Transit
Unreadable to servers & snoops
4
Only You Can Open
Unlocked with Face ID or your key
Curious about how the protection works technically? Click to explore

For security engineers and cryptography enthusiasts, here is the technical specification of how Lugna mathematically protects your data:

  • Authenticated Encryption (AES-256-GCM): Hardware-accelerated authenticated encryption via Apple CryptoKit. Since version 1.4.0, every entry is sealed on your device before it is synced, and each record is cryptographically bound to its own entry so ciphertext cannot be swapped or relocated.
  • HKDF-SHA256 Key Derivation: Cryptographic keys are generated locally on-device with segregated context strings.
  • 128-Bit Hardware Entropy (BIP39): Account recovery phrases are generated using Apple's SecRandomCopyBytes to guarantee secure self-custody.
  • Zero-Knowledge Cloud Isolation: Since version 1.4.0, Cloud Firestore stores only opaque ciphertext (encryptedData) and sentinel verification blocks. Without your device key or 12-word recovery phrase, that data cannot be decrypted.
Tools for Everyday Peace

A Calmer Way to Process Your Emotions

Thoughtfully crafted tools to help you manage overthinking, build emotional resilience, and practice gentle daily self-reflection.

True On-Device Privacy

Writing honestly requires total safety. Since version 1.4.0, your entries are sealed on your device before they ever leave your hands. Only your key opens them, not ours and not a cloud provider's.

Journals created on versions before 1.4.0 are encrypted on your device the first time you open 1.4.0 while signed in. See the privacy policy for details on the upgrade.

Gentle Guided CBT Reflection

When worries or intrusive thoughts begin to spiral, gentle Cognitive Behavioral Therapy (CBT) prompts walk you through what happened, help you untangle your feelings, and reframe negative thoughts with calm and gratitude.

Never-Lost Draft Protection

Take all the time you need without anxiety. If you get a phone call, switch apps, or step away mid-sentence, Lugna automatically preserves every word you typed. Your unfinished reflections will be waiting peacefully when you return.

Encouraging Mood Insights

Notice emotional patterns over time with simple, encouraging weekly trends and summaries. Understand what lifts your spirits and what drains your energy, without clinical jargon or judgment.

Your Personal 12-Word Safety Key

You maintain complete ownership of your sanctuary. A friendly 12-word backup phrase lets you securely recover all your encrypted journals whenever you upgrade or switch to a new iPhone or iPad.

Biometric & Privacy Screen Lock

Keep your journal private from curious glances. Lugna locks instantly with Face ID, Touch ID, or your custom PIN, and automatically blurs your journal screen whenever you switch between apps.

Native Apple Experience

Crafted for iPhone & iPad

Experience Lugna natively on iPhone and iPad with high-contrast Sora typography, fluid iPadOS split navigation, and hardware-backed biometric security.

Peace of Mind

Why You Can Truly Relax with Lugna

Many journaling apps keep your diary in readable form on their servers, where a breach (or anyone with access to those systems) could expose it. Lugna is built the other way around: your entries are sealed on your device, so there is nothing readable to expose.

What Matters to You Typical Cloud Journals Lugna
Who Can Read Your Entries Entries kept in readable form can be opened by whoever operates the service Only You Sealed on your device, unreadable to anyone else, including us
If the Servers Are Breached Readable entries are exposed along with the database Ciphertext Only Useless without your device key or recovery phrase
Signing Up An account is needed to store entries in the cloud Optional Guest Mode journals entirely offline, no account needed
Your Data, Your Terms Export formats and deletion terms vary from app to app Always Yours Encrypted backup or readable JSON export anytime, plus self-serve cloud erasure
Available on iOS & iPadOS

Take a breath. Start your sanctuary today.

Whether you are dealing with daily stress, working through anxiety, or simply need a quiet place to reflect, Lugna is here for you. Completely free to use, fully accessible with Apple VoiceOver, and localized in English and Indonesian.

Requires iOS 16.0 or iPadOS 16.0 or later VoiceOver Compatible English & Indonesian