Mundeuk: Letter to Future Self

Write how you feel today in a short note and send it to your future self, like a tiny time capsule. When the day comes, a little friend brings it back to you.

The sunset on your way home, a promise you made today, a question for yourself a year from now. Once it's written, you're free to forget about it for a while. Then one day, out of the blue, a few words from your past self find their way back to you.

Write a note
• Up to 150 characters per note, short and light
• Choose when it opens: 1 hour, 3 hours, 1 day, 3 days, 1 week, 1 month, or any time up to 2 years
• An unfinished note stays put even if you close the app

Sealed until the day
• A note can't be opened before its day
• Each envelope shows how long is left, like "in 6 days" or "in a month"
• The app checks the actual time online, so changing your phone's clock won't open notes early

When a note arrives
• Your friend carries the note in and shows it to you
• Tap "Got it" to keep it with your read notes, or "Send again" to get it back tomorrow, in a few days, next week, or someday
• Each note tells you when you wrote it, like "From you, one night 3 weeks ago"

My notes
• Notes are sorted into On the way, Arrived and Read
• Notes on the way stay hidden, so opening day still feels special
• Search through the notes you've read

Dress up
• Pick a friend: rabbit, bird, cat, hamster, seal or puppy
• Pick a room: sunny day, sunset, night, rain, spring or winter, or Auto to follow the time of day

How it works
• Write up to 4 notes a day for free. They refill every day at midnight, Korea time
• Watch a short ad when you want 3 more notes (up to twice a day, 10 notes a day at most)
• No banner ads

Privacy
No sign-up and no account. Your notes are stored only on your phone. Use a backup file to move them to a new phone.