How I Turned My Lock Screen into a Marketing Channel (QR Canvas)
Hi everyone. I'm an engineer and YouTuber and this is the story of why I built QR Canvas. On YouTube, I host The Just Rocket Science Show where I talk to founders in the Space industry. And every time someone said, “Where can I find your show / site / product?”, I would immediately start:
- searching my notes for the link
- scrolling through YouTube to find the right Share link
- or saying “I’ll send it to you later”
It was the worst funnel! Most of those interactions never turned into a visit, let alone a subscriber. Business cards don’t really solve this either. They’re easy to lose, and they still require typing a URL.
As someone who thinks a lot about funnels and friction, this started to feel like a hilariously bad onboarding flow for the real world.
The Simple Idea: Make the Phone Lock Screen Do the Work
The one object that is always present in that conversation is the phone.
So the idea for QR Canvas was born:
What if your lock screen was your call-to-action?
Instead of spelling out a URL, you just wake your phone.
They scan a clean QR code on your lock screen and land instantly on:
- your product landing page
- your podcast or YouTube channel
- your newsletter signup
No apps. No tapping. No typing. Just scan and go.
Building QR Canvas
QR Canvas is intentionally simple. The flow looks like this:
- Paste your URL into the app
- Generate a QR code + lock-screen layout
- Download the wallpaper image
- Set it as your lock screen on your phone
Now, your phone becomes a tiny physical touchpoint:
- At conferences
- At meetups
- At coffee shops
- Even in line at the airport
Who It’s For
I built it for myself first, but it naturally fits a few groups:
- Creators – share channels, shows, or newsletters on the spot
- Founders – send people straight to your demo, waitlist, or pricing page
- Freelancers / consultants – share portfolios without fumbling for links
- Local businesses – send people to menus, booking pages, or reviews
Basically: if you do anything that benefits from quick, in-person discovery, a QR-based lock screen is a nice little edge.
Lessons Learned (So Far)
A few things that stood out while building & testing:
- Tiny tools can still be high-leverage.
- This isn’t a massive platform. It’s a single, focused utility that makes one moment 10x smoother.
What I’m Looking For
I’d love feedback from people who actually live this life:
Would you use something like this at meetups, conferences, or coworking spaces?
What features would make it more valuable? (Templates per audience, multiple profiles, basic analytics, etc.)
Any obvious edge cases I should be thinking about?
If this sounds like something that could help your funnel from real-world conversations to clicks, check out QR Canvas and let me know what you think.
Happy to share more about the tech stack or product decisions if that’s useful for anyone here.
