message · photo · a surprise · behind a lock

Leave a secret.
Only the right person opens it.

Put your surprise behind a couple of personal questions. Share one link — whoever opens it has to play, solve, and be surprised. No app, no signup for them.

Free to start Try the example on the right →

Try it — solve the two gates

Create

Build your lock. See it live on the right.

Write the surprise, add a couple of questions only they can answer, pick a colour — then get a link to share.

Design your secret

Free · no signup
openif.net/
A random link is generated if you leave this blank.

↑ A live preview of your lock

Where it works

Turn an ordinary message into a moment.

Proposal

Marriage or first date

Clear the "where did we first meet?" gate and the real question opens: will you?

Big news

Pregnancy reveal

Send family the link; they solve a small riddle and unlock the news themselves.

Birthday

Gift reveal

Lock the location or code of the gift; finding it becomes part of the game.

Confession

"How well do you know me?"

If they can't answer, it won't open. Flirting, friendship, family — your call.

Brand

Giveaway & promo code

Answer the question to unlock the discount. A viral campaign built on engagement.

Long distance

Small daily secrets

Send a lock a day; your shared memories become the keys.

How it works

A minute to write. An event to open.

1

Write the secret

A message, photo or a gift code — the payload is yours.

2

Set the gates

Add questions only the right person knows.

3

Share the link

Over chat, a story, a QR code. No app to install.

4

Watch it open

They solve their way in — and get surprised.

Pricing

Subscribe if you seal often.

For creators, couples, brands and teachers who use it regularly. Just one secret? See the one-time options below.

Mini
$5/mo

For the occasional secret, one event kept live.

  • 3 active secrets at once
  • Up to 3 gates per lock
  • Photo payload + hints
  • Video/audio & analytics
ProMOST CHOSEN
$15/mo

For regular senders who want every detail.

  • Unlimited secrets & gates
  • Video, audio, photo payload
  • Attempt analytics
  • Custom link + QR, hide badge
Studio
$20/mo

For brands, agencies and creators.

  • Everything in Pro, plus
  • Branded page (your logo)
  • Bulk campaigns & giveaways
  • Team seats + priority support

Only sealing one secret?

For people who don't want a subscription. Pay once, keep your secret live.

one-time · no renewal
Most popular

Single Secret

$6
One locked surprise, live 90 days. 3 gates, photo + video included.
Add-on

Custom theme

$12
A lock look and opening animation designed just for you.
Add-on

Physical QR card

$14
Your secret's QR on a fine card, shipped to your door.
Brand

Campaign

$29
A one-off branded, mass-entry locked giveaway.

Payments launching soon — join the list and we'll let you know.

FAQ

Questions, answered.

Does the recipient need an app?+

No. A secret is an ordinary web link that opens in any browser, on any device. No download, no signup — just the right answer.

Are answers case-sensitive?+

No. Spacing, capitalisation and accents are ignored, so "Lisbon" and "lisbon" both work.

Can I set my own link?+

Yes — type a custom link when you create (openif.net/your-word). Leave it blank for a short random one.

Is my secret safe?+

The surprise is stored encrypted and only revealed once the lock is solved on the server — answers are never exposed in the page.

How long does a secret stay live?+

90 days by default. Paid plans (coming soon) let you keep them longer and manage them from a dashboard.

Can I use it for my brand?+

Yes — locked giveaways under your own logo are coming on the Studio plan. Join the list to hear first.

Your first secret is free.
Surprise someone today.

No card, no download. Write your message, set a gate, send the link. Curiosity does the rest.

Create a secret →