The Signify digital business card QR code is the fastest, most reliable way to hand off your professional identity. One scan opens your live card in any browser, on any device, with nothing to install. And with a static, tamper-proof design, every code you share is permanent.
Every Signify card generates its own permanent QR code. It is the quickest way to share a digital business card, and it is built to be reliable in the moments that matter.
QR is the primary and quickest way to share a Signify digital business card. Every card gets its own unique QR code, available instantly in the Signify iOS and Android apps and on the web dashboard. On web, you can download the QR code as an image so it can be printed on business cards, added to presentation slides, or placed anywhere your audience will see it.
Your QR code is never further than a glance away. Open it from the Signify mobile app sharing modal, keep it pinned to your home screen widget, find it engraved on the back of your Signify NFC card, and view it from the smartwatch companion app as it rolls out. Each access point shows the same QR code, so the one you print is identical to the one you share from your phone.
Each Signify card has its own unique QR code, and that code never expires. Better still, when you update your card, whether a new job title, a new phone number, or a new portfolio link, the QR code still points to the same place and shows the recipient the most up-to-date details. You never need to reprint or regenerate anything. The QR stays the same. The card behind it stays current.
Signify generates QR codes locally inside the mobile app, not on a remote server. Even if you have a connectivity issue at a conference, in an elevator, or on a plane, you can open the app and show your QR code for any of your cards. And if the person receiving your card happens to have the Signify app installed, they can scan any Signify QR from inside the app and save your details to contacts instantly, with no third-party scanner in the middle.
Signify QR codes are built to a documented standard. Here is exactly how they are constructed, how they scan, and how they stay secure.
Version 4 or 5 by default, which means a 33 by 33 or 37 by 37 module grid for card sharing. The version scales dynamically with the length of the specific card URL payload.
Byte encoding using ISO-8859-1, so the full character set of the URL, including specialized parameters, is preserved with no data loss.
Level M by default, which allows approximately 15 percent of the code to be recovered if it is partially damaged, smudged, or obscured. This balances scan reliability with module density.
The app enforces a standard four-module quiet zone on all sides of every QR code. This prevents background interference and ensures consistent recognition by mobile scanners.
Signify generates a static QR code that encodes the destination URL directly. There is no redirect service in between, which improves both privacy and scan speed.
At a standard print size of 2 centimeters, scanning works from about 15 to 20 centimeters. At 5 centimeters, the range extends to 40 to 50 centimeters. At 10 centimeters, the code is scannable from up to 1 meter away.
Signify QR codes remain reliably scannable at an off-axis angle of up to 45 degrees, thanks to the three large square position detection patterns in the corners.
Signify enforces a high contrast ratio, typically 4:1 or higher, between the foreground and background colors. This ensures the code stays readable even in low-light environments.
The Signify mobile app and the web dashboard generate QR codes with the same payload for the same card. This eliminates the risk of mismatch and improves security.
The destination URL cannot be edited after the QR code has been generated or printed. That makes each code tamper-proof and reduces the risk of fake Signify QR codes being spread for phishing.
Signify does not rate-limit scans. A code can be scanned as many times as needed, from as many devices as needed, with no throttling or cap.
If the recipient has the Signify app installed, they can scan any Signify QR from inside the app and add the contact instantly. No third-party scanner is required.
Every Signify QR code uses HTTPS for its redirect or destination URL. Recipients see the padlock and get the standard transport security of the modern web.
Signify QR codes work with the native iOS Camera app, the native Android camera and Google Lens, and the Signify iOS and Android apps. No third-party scanning app is needed.
Practical recommendations for the sharpest, most reliable print results on business cards and physical media.
Minimum Resolution
300 DPI
At least 300 DPI for standard business card printing. Use 600 DPI for extra crispness on glossy, matte, or metal surfaces.
Recommended Print Size
25 to 30 mm
25 to 30 millimeters per side is recommended for reliable scanning. The absolute minimum is 20 by 20 millimeters.
These are practical print recommendations. They are not settings currently enforced or specified by the Signify app itself. For related cards, explore our Signify NFC cards and other sharing methods.
From opening your app to a saved contact in under thirty seconds.
Launch the Signify mobile app or web dashboard and select the card you want to share.
Tap Share in the app, glance at your home screen widget, or let them tap your Signify NFC card.
Their phone camera opens your live card in any browser. No app, no sign-up, no friction.
Companies that build strong products trust us. Explore our company story or browse customer stories.
Create your free Signify card and get a permanent QR code that works on every phone, in every browser, from anywhere.
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