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One question before you find out

Which month is the baby due?

Unlock to reveal the reward

Gender reveal

A gender reveal your family play, not just watch

Instead of a cake or a balloon, send a link. Everyone opens it at the same time, cracks a small code about the two of you, and the answer appears on their own phone. Free, works anywhere in the world, and nobody has to be in the room.

How it works

1

Pick the question

Something only people close to you would get: the due date, how you met, the dog's name, the answer to a family quiz.

2

Hide the answer

A word, a photo, a short video of the scan, a name. Whatever you actually want them to see first.

3

Send one link

By message, by email, or printed as a QR code in a card. Agree a time and everybody opens it together.

Designed down to the last detail

Every pixel of the lock is yours to style.

Nothing on the screen is fixed. Pick from dozens of looks, choose the object that opens or upload your own pictures, set the typeface and size, and end on your own reveal. Your players see exactly the screen you designed.

Look

49 looks, solid colours and gradients. Each one repaints the whole page behind the lock.

Object

31 drawn objects, shut while the lock holds, open once it gives way.

Typeface and size

10 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.

7 looks and 13 drawn objects are free. The premium looks, the other objects, your own pictures, the animations, typefaces and text sizes come with the Event Pass or Pro.

Build yours โ†’
49
looks
31
objects that open
10
typefaces
8
unlock animations
12
lock types
5
player languages

A complete example: the whole family at once

The lock in the demo above, set up the way most parents do it.

Who gets it
Both sets of grandparents, three siblings and two friends abroad, in one message.
Question
Which month is the baby due?
Lock format
Password, not case sensitive, so 'June' and 'june' both work.
Hint
The one with the longest day of the year. Enough to get there, not enough to skip the moment.
Reveal
A photo with the word on it, and a line underneath in your own words.
Timing
A message saying 'open it at 8pm'. Everybody finds out together, nobody hears it second-hand.
What you see
How many opened it and how many got there, so you know who to ring.

Six ways families do it

The due date

The date is the code. Hint: the day everything changes.

Baby investigation

A short trail: three clues about the two of you, and the answer at the end.

First letters

Each answer gives a letter. Together they spell the name.

The family quiz

Five questions about the parents. Get them right, find out.

Hidden in the video

The code is in the scan video. They have to watch it to the end.

Vote first

Everybody guesses in the group chat, then the link settles it.

Simple, honest pricing

Free, with unlimited people opening it. The Event Pass, paid once, removes the Lock Challenge branding and unlocks the premium looks and the confetti, which is what you want on the screenshot everybody keeps.

Free

$0forever

Build a real lock, single or multi-step, and let people play it. No time limit.

See what is included
  • 3 locks
  • 1 multi-step lock of up to 3 steps
  • Text, link, image, button and promo code reveals
  • Basic statistics
  • Lock Challenge branding on the player page
  • Personal and educational use
Create a free lock

Event Pass

$9.90once

One event, dressed properly. Every look, animation and typeface, and your experience live for 30 days. It closes when the pass ends and reopens the moment you pay again. Running sessions, the results and the timer stay with Pro.

See what is included
  • Everything in Free, for one event
  • No Lock Challenge branding
  • Your own accent colour on multi-step locks
  • 42 premium looks and 18 more drawn objects
  • Your own before/after pictures
  • 8 unlock animations to choose from
  • 22 dressed scenarios, ready to run
  • Audio, video and file reveals
  • Sudoku locks, generated in three difficulties
  • Wordle locks, with coloured guesses
  • Text size and font
  • Email invitations, up to 200 at once, tracked person by person
  • 10 locks and an 8-step trail
  • One payment. Your event runs for 30 days.
Get the Event Pass
Best value

Pro

$14.90per month

See what is included
  • Everything in the Event Pass, all year
  • Unlimited locks, multi-step locks and steps
  • Printable QR pack
  • Live dashboard and leaderboard
  • Scheduling
  • Detailed results and CSV export
  • Player emails, collected at the reveal and exported
  • Timed challenges: a clock the server keeps, per game and per step, one play per device
  • A cap on how many people win, with a sold-out message
  • 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
  • Your logo on the lock
  • Duplicate a whole multi-step lock in one click
  • Bulk step creation
  • Iframe embedding
  • A "challenge a friend" button under your reveal
  • Commercial use
  • Cancel any time
Get Pro โ†’

Every plan: 12 free lock formats, unlimited players and attempts, 7 looks and 13 before/after picture pairs, QR code and short link.

Gender reveal questions

What is a gender reveal game?

It is a link that hides the answer behind a small puzzle. Instead of watching a cake being cut, each person answers a question on their phone and the reveal appears for them. It works for family who are not in the room, which is most families.

Can everyone open it at the same time?

Yes, and that is usually the point. Send the link with a time, and everybody finds out together wherever they are. On Pro you can also set an opening date, so the link simply does not work before it.

Can I hide a video or a photo?

A photo or a link on the free plan; a video, a file or several items at once on Pro or with an Event Pass.

Do grandparents need an app?

No. It opens in whatever browser their phone already has, and there is nothing to sign up for. If they can open a link in a message, they can do this.

What if somebody cannot get the answer?

Add a hint. Players can open it with a button, and it shows itself after three wrong answers unless you change that number. You can make the hint give it away entirely: the moment is the reveal, not the puzzle.

Is it free?

Yes. One reveal, unlimited people, no card. The paid plans add the premium looks, the branding removal and the extras; nothing in the free version expires.

Let them find out together

Write the question, hide the answer, send one link. It takes about five minutes, and the screenshots last a lot longer.

Create your gender reveal โ†’