Inventory Management

91id.in28 September, 2026
27

What Happens When Two Products Use the Same Identifier?

Imagine scanning a product barcode at a supermarket. The scanner reads the identifier. The system looks up that identifier in…
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91id.in28 September, 2026
28

Barcode vs QR Code: What’s the Difference?

When you look at a product package, you may see a traditional barcode made of vertical black lines. You may…
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91id.in28 September, 2026
27

Do Small Businesses Really Need Barcodes? A Practical Guide for Startups & Small Brands

If you run a small business, you may have wondered: “Do I really need a barcode for my products?” 🤔…
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91id.in28 September, 2026
41

What Information Is Stored in an EAN-13 Barcode? A Complete Guide

details in a way that can simply be decoded. GS1 explicitly notes that the number itself has no such intrinsic…
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91id.in28 September, 2026
130

What Is a Product Identifier and Why Does Every Product Need One?

Every product has an identity. A bottle of shampoo, a packet of rice, a mobile phone, a cosmetic product, a…
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Barcodes & Product Identification

91id.in28 September, 2026
30

How Do Barcodes Work? A Complete Beginner’s Guide | 91iD™

Have you ever wondered what those black-and-white lines on a product actually mean? You see them on almost everything: 🛒…
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91iD™ launch program

No Registration Fee • No Annual Renewal Fee

No Registration Fee • No Annual Renewal Fee

During the current 91iD™ launch program, eligible product registrations are intended to remain searchable in the 91iD™ network without an annual renewal fee.

The current program is designed to provide no registration fee and no recurring annual renewal fee for eligible registrations, subject to the published program terms.
✓ No registration fee
✓ No annual renewal fee
✓ Searchable product record
✓ Customer verification access

91iD™ LAUNCH & NETWORK MISSION

91iD™ Numbering System

91iD™ Numbering System

An Independent Product Identity Network

91iD™ is independently operated as a product identification and verification network. A 91iD™ identifier is its own proprietary/private reference and does not require a GS1 GTIN to exist as a 91iD™ identifier. Where a product or marketplace is subject to a separate regulatory, retailer, marketplace or standards requirement, those requirements remain applicable.

91id Registration →