Skip to content

Try it now, no sign-up

Mum, someone locked a surprise for you

Clue:

What is on the way, in four letters?

Pregnancy reveal

Pregnancy announcement reveal: hide the news behind a lock they crack

A pregnancy announcement reveal is a locked link. You hide a message, a scan photo, or a due date behind a small lock, send the link, and your family crack the code on their phone to find out you are expecting. Free, no app, and nothing to sign up for on their side.

How it works

1

Lock your news

Write the announcement, add the scan photo if you like, and pick a word or a date only your family can guess.

2

Share the link

Send the link by text or email, or print the QR code inside a card. An Event Pass adds a theme and a filmed unlock animation to the lock.

3

Watch them unlock it

They crack the code on their phone and the announcement is revealed. No app, no account.

Designed down to the last detail

Style every pixel of the lock, and watch it open on film.

Nothing on the screen is fixed. Pick a theme, choose a filmed object that fidgets while the lock holds and opens on video, with sound, when the code is right, then a celebration for the moment it opens. Set the typeface and size, and end on your own reveal. Your players see exactly the screen you designed.

Everything you can design on a lock โ†’

Colours

51 themes, and more in the builder. Each one paints the lock, its keys and its button.

Video animations

45 filmed objects that fidget while the lock holds and open on video, with sound, when the lock gives way.

Empty rusty boxScrollRing boxEmpty puzzle boxSafePirate chestChampagne crateLockerSuitcaseMusic boxEvidence boxVault doorGift boxArcade cabinetAirlock

Typeface and size

37 typefaces and 6 text sizes, from a phone in hand to a screen across the room.

Or your own two pictures

Upload a closed and an open picture: the parcel as wrapped, then what was inside. Included with the Event Pass and Pro.

Every theme, every filmed animation, your own pictures, the celebrations, typefaces and text sizes come with the Event Pass or Pro. A basic lock keeps the default theme.

Build yours โ†’
51
themes
45
filmed animations
37
typefaces
36
celebrations
15
lock types
5
player languages

A complete example: telling the grandparents

This is the lock in the demo above, the way most parents set it up. Copy it as is, or swap the word and the reveal.

Who gets it
Both sets of parents, by text message, at the same time on a Sunday morning.
Question
What is on the way, in four letters?
Lock format
Written answer, not case sensitive. The answer is 'baby'.
Hint
The little one. B, A, B, Y. Yes, the hint gives it away: the point is the reveal, not the puzzle.
Reveal
'You're going to be grandparents! Due in March.' with the first scan photo underneath.
Harder version
Set the answer to the due date as four digits and hint 'the day it all changes'.
What you see
How many people opened the link and how many cracked it, so you know Grandma got there.

Ready-to-use pregnancy reveal ideas

The due-date code

Set the code to your due date, hint 'the day it all changes', and reveal a photo of the test.

Grandparents first

Lock 'You're going to be grandparents' behind an answer only they would know, like the family dog's name.

Sibling promotion

Let an older child crack a one-digit lock that reveals 'You're going to be a big brother'.

The sonogram unlock

Hide the first scan image behind the lock and send that instead of a plain photo.

Long-distance family

One link for everyone abroad, opened at an agreed time, so nobody hears it second-hand.

Inside the card

Print the QR code inside a greeting card. The card says 'scan me', the lock says the rest.

Simple, honest pricing

Free, with unlimited attempts on every plan. The Event Pass, paid once for one event, removes the Lock Challenge branding from the reveal.

Build everything first, paid options included. You only choose a plan when you publish. Start building โ†’

Free

$0no card needed
  • 3 basic lockssingle or multi-step, up to 3 steps each
  • Your locks never expire
  • 15 lock formats
  • Multiple reveal formatsTextLink / downloadAction buttonImageYouTube videoAudioHTML
  • 8 free templates
  • Math riddle lock
  • What am I riddle lock
  • Science riddle lock
  • History date lock
  • Geography riddle lock
  • Music note lock
  • Mini classroom escape room
  • Playground treasure hunt
See what is included
  • Custom encouragement messages
  • Basic statistics
  • Personal and educational use
Create a free lock

Event Pass

$7.90once
  • 10 premium locksup to 10 steps each
  • 51 themes and 45 filmed unlock animations
  • 36 celebrations with sound
  • Text size and font
  • Your logo on the lock
  • Lock Challenge branding removed
See what is included
  • Your own before/after pictures
  • 25 premium templates, ready to run
  • Email invitations, up to 200 at once, tracked person by person
  • One payment. Your premium locks stay live for 15 or 30 days.
Get the Event Pass
Best value

Pro

$14.90per month
  • Unlimited premium locksunlimited steps
  • Option to ask players for their name or email
  • Timed unlocking
  • Detailed results and CSV export
  • Live dashboard and leaderboard
  • Scheduling: opening and closing dates
  • A cap on how many people win

39 ready-made templates, the 6 timed ones Pro alone +19 more โ†’

Everything else in Pro (13)
  • Printable QR pack
  • 6 timed templates, built on that clock
  • Access code, player and attempt caps, single use
  • An event date, with a reminder the day before and a report the morning after
  • Choose whether players can look back at the steps they solved
  • Duplicate a whole multi-step lock in one click
  • Bulk step creation
  • Iframe embedding
  • A "challenge a friend" button under your reveal
  • A signed webhook to your own URL on every unlock
  • Saved recipient lists: drop a CSV with first names, invite the same people again
  • Cancel any time
  • Commercial use
Get Pro โ†’

Every plan: 15 lock formats, unlimited players and attempts, QR code and short link.

Pregnancy reveal questions

What is a pregnancy announcement reveal?

A pregnancy announcement reveal is a locked web page. The announcement, a message, a scan photo or a due date, sits behind a small lock. You share the link, and the person who opens it has to crack the code, by typing a word, a date, or solving a short puzzle, before the news appears.

How do I announce a pregnancy with a lock?

Create a free lock, type your announcement as the reveal, pick a word or a date as the answer, and publish. You get a link and a QR code. Send the link, and your family crack the code on their phone. Read how to announce your pregnancy to grandparents.

Can I hide a photo of the sonogram?

Yes, on every plan, free included: an image, audio, a YouTube video, and several items in one reveal, as well as text with bold, sizes and links.

Do my family need an account to open it?

No. Anyone with the link can crack the code in their phone's browser, with no sign-up and nothing to install.

What if they get the answer wrong?

They try again. Attempts are unlimited on every plan, free included, and you can add a hint that players open with a button, or that shows itself after three wrong answers.

Is it free?

Yes. Creating and sharing a pregnancy reveal is free, with a message, a photo, a video or a voice note behind the lock, and it never expires. An Event Pass or Pro styles it with a theme, an animation and your own pictures, and removes the small 'Powered by Lock Challenge' line.

You have the news. Now make the moment.

Hide it behind a lock they crack on their phone, and turn a text message into a memory. Create your reveal free.

Create your pregnancy reveal โ†’