Questions about sealed guest letters
The seal, guests, dates, printing and your data, answered plainly. The rules themselves are on how it works.
Frequently asked questions
Can the host read letters early?
No. Sealed means the server will not show a letter to anyone, the host included, before the date. Before the open date the server sends the host a count and nothing else: no From line, no words, not in the dashboard, not in a download.
Can a guest read or edit a letter after sending?
No. A letter is sealed the moment it is sent, and no page or download shows it to a guest, the one who wrote it included. If a guest wants to add something, they can write another letter.
What happens if the website is gone in 18 years?
We plan to keep your capsule until it opens. No website can promise 18 years, so a long seal carries that risk. After it opens, download the letters and keep your own copy.
Do guests need an account?
No. A guest scans the QR code or opens the link, types who the letter is from and the letter, and presses Send. They never sign in and never receive email.
Can both partners open it?
Yes. While signed in, add a second passkey on your partner's phone from Settings. The passkeys section there explains the steps.
How many letters fit?
Each capsule holds 50 letters. When a capsule is full, the write page tells the next guest so, and keeps what they typed on their phone. Each letter is up to 3,000 characters.
Can I change the open date?
Yes, until the capsule opens. Before the first letter arrives it can move earlier or later. Once a letter is sealed it can only move later, because guests were told a date. The time zone can change only before the first letter. Every change is shown to guests on their page with the day it was made, and once letters have stopped the last day for letters cannot be moved to take more.
What time does it open?
At 09:00 on the open date in the capsule's time zone, which you choose when you start it. Letters are taken until 23:59 on the last day for letters, in the same zone. A capsule can stay sealed for up to 10 years after the event, or 21 for a baby shower.
Can I add photos?
Not yet. Letters are text only.
How do I print table cards?
Open the capsule, choose A4 or US Letter, and press Download table cards. Each sheet has 4 cards with your question and the QR code; cut along the dashed lines.
Is it encrypted?
No. Sealed means the server will not show a letter before the date. Letters travel over HTTPS and the guest link's secret is kept only in scrambled form, but this site stores the letters as they were typed, not locked with a key you hold.
How do I delete everything?
On the account page, press Delete my account and type DELETE. Guest links stop at once and you are signed out everywhere. Sign in within 7 days to cancel; after that the account, its capsules and their letters are deleted for good. One capsule can be deleted from its own page the same way.
What if I lose my phone?
If your passkey is synced by your passkey manager, it is on your other devices already. Otherwise sign in on another device you added, or use your recovery code on the recovery page to add a new passkey.
Who is behind the site?
Sealtrove is an independent web tool. Sealtrove is not affiliated with any venue, planner, stationery brand or time-capsule service.