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Case Study

How LMK.today Tracks TV & Print Ad Performance with QR Codes

October 15, 2025

For direct-to-consumer (D2C) brands, measuring the performance of traditional advertising channels like TV and print has always been a challenge. Unlike digital ads where every click is tracked, offline advertising has historically been a "spray and pray" approach—you run the ad and hope for the best.

LMK.today, a free wishlist builder and price alert watcher, solved this problem by using Autonix QR codes to track every scan from their TV and print ads directly to signups. Here's how they did it.

The Challenge: Tracking Offline Ad Performance

LMK.today needed to drive signups for their free registry and price alert service through traditional advertising channels. The problem? They had no way to measure which ads were actually working.

  • TV commercials couldn't be tracked—how many viewers actually signed up?
  • Print ads in magazines and newspapers had no attribution—which publications drove signups?
  • No conversion data meant they couldn't optimize ad spend or prove ROI to stakeholders

Without conversion tracking, they were flying blind on ad performance and couldn't make data-driven decisions about where to invest their marketing budget.

The Solution: Unique QR Codes Per Ad Medium

LMK.today implemented Autonix QR codes with a simple strategy: each ad medium gets its own unique QR code.

  • TV ads display a QR code that links directly to the signup page
  • Print ads in each publication get a unique QR code
  • Each campaign can have multiple QR codes for A/B testing

When viewers or readers scan the QR code, they're taken directly to LMK.today's signup flow. Autonix tracks every scan with timestamp, device type, and location data, then links it to the signup completion.

Complete Conversion Tracking

The real power comes from tracking the full funnel:

  1. Ad Scan: User scans QR code from TV or print ad
  2. Landing Page: User lands on LMK.today signup page
  3. Signup Completion: User completes registration
  4. Attribution: Autonix links the signup back to the original ad medium

This gives LMK.today complete visibility into:

  • Which TV spots drive the most signups
  • Which print publications deliver the best ROI
  • Conversion rates by ad medium
  • Cost per acquisition (CPA) for each channel

Results: Data-Driven Ad Decisions

With Autonix tracking, LMK.today can now:

  • Measure ROI on every TV spot and print ad
  • Optimize ad spend by doubling down on high-performing channels
  • Prove value to stakeholders with concrete conversion data
  • A/B test different ad creative and messaging
  • Update campaigns dynamically without reprinting or re-airing ads

For a free service like LMK.today, where every signup matters, having complete conversion tracking from offline ads is game-changing. They can now make data-driven decisions about where to invest their marketing budget and prove the value of traditional advertising channels.

Key Takeaways

If you're running TV, print, or out-of-home ads, QR codes with Autonix give you:

  • Complete attribution from ad scan to signup
  • ROI measurement on traditional advertising channels
  • Dynamic campaign updates without reprinting or re-airing
  • A/B testing capabilities for ad creative and messaging

Ready to track your offline ad performance? Contact Autonix to see how QR code tracking can transform your traditional advertising campaigns. Or explore our solutions for marketing agencies and D2C brands.

About LMK.today: LMK.today is a free wishlist builder and price alert watcher that helps users track products they want and get notified when prices drop. Learn more at lmk.today.

Related Resources: Learn more about D2C brand solutions, QR code features, how Autonix works, and pricing for performance marketing teams.