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How many hours are there in a day?
Wrong answer, try again.
A QR code reveal is a QR code that opens a small lock instead of a plain page. The customer scans it, answers one easy question, and the lock opens on your discount code, gift, or message. Free to create, no app to install, and Pro allows commercial use with no watermark.
Write the code (say CRACKED20), pick an easy question, and set the answer. An Event Pass or Pro adds a theme and a filmed unlock animation.
Every published lock gets a short link and a downloadable QR code. Put it on a cup, a receipt, a table tent, a flyer, or a badge.
They scan, answer, and the code appears on their phone with a copy button. You see how many scanned and how many opened it.
Designed down to the last detail
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 →51 themes, and more in the builder. Each one paints the lock, its keys and its button.
45 filmed objects that fidget while the lock holds and open on video, with sound, when the lock gives way.
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.
This is the exact lock in the demo above, the way you would set it up for a coffee shop. Copy it as is, or swap the code and the question.
Hide the percentage, not just the code. 'Crack it to find out how much you save' gets more scans than '10% off'.
A QR code inside the box reveals a code for the next order. The question can be about the product itself.
Several QR codes around a venue, each hiding a clue or a small prize, to keep guests moving between stands.
Hide the entry link behind a lock so only people who read the flyer reach the giveaway.
A QR code on the receipt that reveals a free item once a month. Change the code without reprinting anything.
A QR code on the menu that unlocks the off-menu item of the week, with a question about the restaurant.
Free to create and share. Pro allows commercial use and removes the Lock Challenge branding.
Build everything first, paid options included. You only choose a plan when you publish. Start building →
Free
Event Pass
Pro
39 ready-made templates, the 6 timed ones Pro alone +19 more →
Every plan: 15 lock formats, unlimited players and attempts, QR code and short link.
A QR code reveal is a QR code that leads to a locked page instead of an open one. The person who scans it has to crack a small lock, by answering a question, entering a code, or solving a short puzzle, and the content behind it is revealed. With Lock Challenge the content can be a discount code, a message, a link, an image, or a file.
Create a lock, type the discount code as the reveal, choose an easy question and its answer, and publish. The lock gets a short link and a QR code you download and print. When a customer scans and answers, the code appears on their phone. Ideas in gamified discount ideas.
Yes, on Pro. Commercial use is part of the Pro plan, along with removing the 'Powered by Lock Challenge' branding from the customer's screen. The free plan is for personal use and keeps the branding.
Easy. For a discount the reward is the point, so pick a question every customer can answer in seconds, such as 'How many hours are there in a day?' or the name of your shop. Keep hard riddles for treasure hunts and escape games.
No. The QR code opens a web page in the phone's browser. There is nothing to install and nothing to sign up for on the customer's side.
Yes. The QR code points to the lock, not to its contents. You can change the discount code, the question, or the reveal at any time and every printed QR code keeps working.
Yes. Every plan shows how many people opened the lock and how many cracked it. Pro adds detailed statistics: timings, hint usage, and a CSV export.
The free plan keeps up to 3 locks active at a time, and they never expire, with unlimited scans and attempts on each. Pro lifts that limit for as long as you subscribe, and adds commercial use. More ideas in QR code marketing campaign ideas.
Hide your code behind an easy question, print the QR code, and let customers crack it. Free to create, commercial use with Pro.
Create your QR code reveal →
