Seal & Reveal

Seal it now. Reveal it later.

Seal & Reveal locks your answer in a sealed envelope. Everyone can see that you answered, and when. Nobody can read it until the reveal: not your friends, not the host, not even the people who run the app.

The app is being tested before its launch, on Android phones. The test is by invitation.

A closed envelope with an amber wax seal

The idea in four minutes

Say it early and you get copied. Say it late and nobody believes you.

A group chat shows every answer the moment it is typed. Seal & Reveal lets everyone answer first and look afterwards.

4 minutes 16 seconds, with sound. Every spoken sentence is also shown as a caption in the picture. If the video does not play, open the video file.

How it works

Ask. Seal. Reveal.

Step 1

The host asks a question

The host types the question, picks when the answers open, and shares one link in the group chat.

Step 2

Everyone seals an answer

Tap the link, type a nickname and your answer, tap Seal. Only the locked seal leaves your phone. Everyone sees who has sealed, and when.

Step 3

All answers open together

At the reveal each phone hands over its answer, and every phone checks that it is the one that was sealed. Nothing was swapped.

  • When I say so. The host taps Reveal. Made for quiz night, and for anything decided on the spot.
  • At a set time. Entries close and answers open by themselves, for example when the match starts. Nobody has to press anything.
  • Close at one time, reveal later. For results the players could influence, such as who arrives last on Friday. Once the times are set, nobody can move them: not the host, and not the app.

A seal of your own

You do not need a round. Seal a prediction, share it as a link that shows nothing, and reveal it when the day comes, next week or next year. Your friends' phones remember the seal and the date they first saw it, so one tap shows the match. A round is for the weeks ahead: it must be revealed within 90 days.

No copying, no pasting, no account

Everything travels as a link in the chat you already use. Someone without the app lands on a page that says what the link is and where to get the app. There is nothing to sign up for.

What people seal

Anything where the first answer spoils the rest

Year-ahead predictions

Each of you seals your own in January. Reveal them together in December.

The final score

Everyone calls it before kick-off. Nobody can copy.

The baby's name

Guess without giving the surprise away.

Quiz night over chat

All answers in before anyone sees one.

How the series ends

Say it now, show it after the last episode.

The secret gift exchange draw

Seal the pairings, so nobody wonders whether they changed.

Calling it early

Say it now and you are copied or spoil the fun; say it afterwards and nobody believes you.

  • The final score
  • Who lifts the cup
  • The season's final table order
  • Who scores first
  • A full tournament bracket
  • The finishing order of a race
  • Your own finishing time
  • How the series ends
  • Who leaves the show this week
  • Who did it in the mystery
  • Awards night choices
  • The twist in the next book
  • An election outcome
  • Year-ahead predictions
  • The date of the first rain
  • When the delayed project finally opens

Family and friends

The first guess said out loud steers the rest, and some guesses would give the surprise away.

  • The baby's name, sex, birth date and weight
  • Who arrives last
  • Who falls asleep first on New Year's Eve
  • How long the road trip takes
  • The wedding venue or honeymoon destination
  • What the surprise gift turns out to be
  • Your own exam marks
  • Where each of us will be in ten years

Group answers that must not influence each other

In a chat the first answer is visible, so later ones follow it.

  • Quiz night over chat
  • The number of sweets in the jar
  • The weight of the cake
  • How many guests turn up
  • Judges' scores at a cook-off
  • Book club and film night ratings
  • Choosing a restaurant or a pet's name
  • "How well do you know me" games
  • Your view before and after a debate
  • Settling a factual argument before anyone looks it up

Games with hidden choices

Over chat, whoever goes second sees the first move.

  • Rock, paper, scissors
  • A coin flip
  • Deciding who goes first
  • Drawing the short straw
  • The secret word in a guessing game
  • "I'm thinking of a number"
  • The sealed move when a chess game pauses overnight

Hosts showing fair play

Whoever knows the answer could change it once the guesses come in.

  • The quiz answer sheet
  • The riddle of the week
  • The hiding place in a treasure hunt
  • The culprit at a mystery party
  • The pairings in a secret gift exchange draw
  • The true count in a guessing contest
  • A teacher's answer to the challenge question

Secrets kept for now

You cannot say it yet, but later you want to show you knew.

  • News you cannot announce yet
  • Someone else's surprise
  • A gift chosen months ahead
  • The name of a new business or band
  • The ending of a story told in instalments
  • A magic trick prediction

Promises to yourself

A public goal brings pressure, a private one can be quietly rewritten.

  • New Year's resolutions
  • A goal time for a run
  • Predictions about your own year
  • A message to friends for the reunion

Work and study

Hindsight makes everyone remember being right, and the senior person's guess anchors the room.

  • A hypothesis before the experiment
  • Task estimates from a remote team
  • The real release date
  • What will go wrong on a project
  • Interview panel verdicts before discussion
  • Study group answers before comparing

Every example here is made up.

Free and Pro

Players never pay

Only a host who wants more ever needs Pro.

Players

Free, always

  • Join any round
  • Check any seal
  • See every result

Hosts

Free

  • One round at a time
  • Up to 10 answers in a round
  • 3 seals of your own sealed at once
  • Backup and restore

Pro, for hosts

R99 once

  • As many rounds as you like
  • Up to 100 answers in a round
  • Unlimited seals of your own
  • Extra card styles

Pro is a one-time purchase in the app, with no subscription. R99 is the price in South Africa; the app shows the price for your country before you buy.

Good to know

What it is, and what it is not

  • Just for fun

    There are no points and no currency, and nothing of value depends on a result. Seal & Reveal is made for people who know each other.

  • What a match shows

    A match shows that the text was fixed when the seal was made. Seal & Reveal cannot tell when that was. The time is shown only by where the seal was posted, such as the time on the chat message. In a round, the time next to an answer is when our server received its seal. None of this is a formal record of anything.

  • Who can read what

    A seal of your own never leaves your phone. Rounds run through our server, which holds only what a round needs, sees an answer only once the reveal has started, and deletes rounds on a schedule. The details are in the privacy policy.

  • No account, and for adults

    There is nothing to sign up for, no advertising and no tracking. The app is for adults aged 18 and over, and rounds have a few plain rules: keep it friendly and lawful.

Ask a question. Everyone seals an answer. Reveal together.

By invitation for now.