Diary & Journal: ThreeLines

ThreeLines is a beautifully simple daily journal app built on one principle: three lines is all you need.

Each day, open the app and write three lines about your day. That's it. No templates, no word counts, no pressure. Just three lines to capture what matters.

WRITE • Daily 3-line entries — what happened, how you felt, what you noticed • Attach a photo with a caption to any entry • Edit any past day from your calendar

BROWSE • Calendar with List, Month, and Year views • Photo gallery view of every captured moment • Visual streak tracking and 12-month heatmap

EXPORT & SHARE • Export your full journal as plain text or CSV • Share entries to X, Threads, Mastodon, Instagram, and Facebook • Formatters tailored to each platform's character limits

PERSONAL • System / Light / Dark theme picker, persisted across launches • Apple Intelligence integration on capable devices (coming soon)

PRIVACY FIRST Your entries stay on your device. No accounts, no sign-ups, no ads, no tracking, no data selling. Your thoughts are yours alone.