QR Drug Test Scanner App

I need a cross-platform mobile app (iOS and Android) that makes onsite drug testing almost effortless. As soon as a user points the camera at the QR code printed on a consumable test kit, the app should recognise whether it is a 5- or 10-panel device and instantly display the corresponding layout on screen. From there, the same camera session captures the test cassette, reads the control and test lines, and returns a clear positive/negative result for each panel.

Users will sign up or log in with a straightforward email-and-password flow; no social or biometric options are required. Once inside, the experience splits by subscription tier. Basic users can run tests locally on the handset, but anything cloud-related—automatic result backup, multi-user collaboration, PDF reporting and remote dashboard access—stays locked until they upgrade to Premium. The subscription mechanism should be handled with the standard in-app purchase frameworks for iOS and Android, including free-trial and renewal logic.

Because accuracy and speed are non-negotiable, I will validate the build with real test kits under mixed lighting conditions. I expect:

• Robust QR detection that never confuses similar codes on outer packaging
• Line-reading accuracy of 99 % or better, confirmed across at least 100 sample photos
• Secure user accounts stored in an encrypted database and synchronised only for Premium subscribers
• A clear, friendly UI that guides the operator step-by-step and stores a timestamped history of every test run
• Cleanly structured source code (React Native, Flutter or another modern cross-platform stack) handed over in a private repo, plus build instructions that let me compile for both stores on my own machine

If this sounds within your wheelhouse, let’s talk schedule and milestones so we can get the first beta into the field quickly.

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