OneLine – Daily Diary

Missed a day? Open it and write it anyway. Your streak comes back with it.

One line. Every day. Your story.

OneLine is the beautifully simple journal that helps you capture each day in a single sentence. No pressure, no long-form writing, just one meaningful line that captures your moment.

DAILY JOURNALING, SIMPLIFIED

• Write one line per day (up to 280 characters)
• Track your mood with five expressive moods
• Attach photos to preserve visual memories
• Daily writing prompts to spark inspiration

MISSED A DAY? WRITE IT ANYWAY

• Open any past day and fill it in later
• A day you forgot is never locked away
• Filling a gap puts your streak back together
• Free, because writing in your own diary should be

TRACK YOUR JOURNEY

• Build writing streaks and stay consistent
• See at a glance which days you journaled
• Tap any day to open it right from your stats
• See mood trends and patterns over time
• On This Day: rediscover entries from past years

YEAR IN REVIEW

• Beautiful, interactive annual summary
• Mood charts, writing activity graphs, and more
• Tap any chart for detailed insights
• Share your Year in Review as an image

YOUR DATA, YOUR PRIVACY

• Entries stay on your device and sync privately
• Export your journal anytime as PDF or text
• No ads, no tracking, no data collection
• Lock your journal with biometric authentication (Premium)

PREMIUM (One-time purchase, yours forever)

• Photo memories on every entry
• Biometric app lock
• Streak shield: covers one forgotten day a month
• Support independent development

Everything else stays free: unlimited entries, filling in days you missed, search, export, activity map, Year in Review, On This Day, mood tracking, stats and cloud sync.

Start your one-line-a-day habit today. It takes 30 seconds, but the memories last forever.

Privacy Policy & Terms of Use: https://merzkevin.de/privacy-OneLine.html