ECHO · 메아리

A digital time capsule,
sealed for video.

Seal today's feelings together with a video, and it stays locked until the day you set. To the you of six months from now, the us of a year away — words that travel across time.

Words that time will carry.

Seal for: 1 day to 5 years · 6 months by default

What is a digital time capsule?

A digital time capsule is something you seal today that can't be opened until a date you set. incove calls its version an Echo: a message left today, sealed together with a video. You can lock it from one day up to five years (six months by default), and it stays sealed until that day. The contents are end-to-end encrypted and unreadable to incove's servers, which only control when it is delivered — so the capsule really is shut, not just hidden behind a screen.

Choose the day it opens

From one day out to any date up to five years away — six months by default. Until that day arrives, not even you can open it early.

  • Schedule for birthdays, anniversaries, graduations
  • Sealed Echoes carry a lock icon and a wax seal
  • A cinematic unseal animation at the moment it opens

Two ways of keeping the date

An Echo left for someone else is held by the server, which will not hand over the ciphertext before the day arrives. An Echo you leave for yourself is your own record, so the server has no reason to withhold it — the app simply does not open it until that day. Either way the contents are end-to-end encrypted, so the server never learns what they say.

  • The server holds no content-decryption key
  • Echoes sent to others are withheld by the server until the day
  • Manage incoming and sent Echoes in your mailbox
The moment you keep today
returns to you, one day.INCOVE · Echo
Up to 5 yrs
maximum seal length
Zero
can read it before the day
E2EE
contents stay private

FAQ

Digital time capsule — FAQ

How long can an Echo stay sealed?

From one day up to five years, with six months as the default.

Can I open a sealed Echo early?

An Echo addressed to someone else stays out of reach until the day — the server will not deliver it before then. An Echo you left for yourself is your own record, so it is not hidden from you by the server; the app just does not open it until the day you chose.

What are good digital time capsule ideas?

The ones people come back to are usually small and dated: a clip on a birthday for the same day next year, a message to a child sealed until they're older, a note to yourself the week before something big, an anniversary reply to the video you sealed last year. Short and specific ages better than a long summary.

Can incove read my Echo's contents?

No. Echoes are end-to-end encrypted, and the server never holds the key to decrypt the contents.

INCOVE · CONCEPTS

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