Step-by-Step
Playbooks.
Deep-dive guides for every industry — from WhatsApp reservations to real-estate QR funnels. Built for practitioners, not theorists.
Showing 1-9 of 106 guides
Deep Linking for Indian Apps: Flipkart, Zomato, Swiggy, Nykaa & CRED
A practical deep linking indian apps guide — how app links, Universal Links and custom schemes behave on Indian apps, the desktop and app-not-installed fallbacks that break campaigns, and how to run it from one QR code.
Password Protected QR Codes: When & How to Use Them
What a password protected qr code actually is (and why the QR itself can never be protected), the three real ways to restrict who reaches the content, and what SMLLR offers instead — expiry, scan limits and instant deactivation.
WiFi QR Code API Guide
A developer's wifi qr code api guide — the exact WIFI: payload syntax, escaping SSIDs and passwords correctly, WPA vs WEP vs open networks, hidden SSIDs, and generating codes at scale for hotels and offices.
Bulk QR Code API: Generate at Scale
An honest bulk qr code api guide — what a generation API does, how to build one in your own backend, the difference between bulk generation and bulk download, and exactly what SMLLR's read-only API covers.
SMS QR Code API Guide
A developer's sms qr code api guide — the sms: and SMSTO: payload formats, how iOS and Android differ, generating codes programmatically, and what SMLLR's own API does and does not do.
Email QR Code API Guide
A developer's email qr code api guide — the mailto: and MATMSG: payload formats, encoding subject and body correctly, generating codes at scale, and what SMLLR's read-only API actually covers.
QR Code Error Correction Levels: L, M, Q, H — Which Should You Use?
A practical guide to qr code error correction levels — what L, M, Q and H actually recover, what each level costs you in data capacity and print size, and which one to pick for a menu, a logo QR, a factory label or a billboard.
QR Code Scan Distance: How Far Away Can a QR Code Be Scanned?
What really determines qr code scan distance — module size, camera resolution, lighting, angle and motion — plus a placement-by-placement distance table for menus, standees, shop shutters and highway hoardings in India.
How Many Characters Can a QR Code Hold? Data Capacity Explained
The real qr code data capacity limits — 7,089 digits, 4,296 alphanumeric characters or 2,953 bytes at maximum — plus why the practical limit for anything you print is far, far lower.
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