Access Control: Cards vs Mobile Credentials

Access control technology is rapidly evolving. While traditional key cards have been the standard for decades, mobile credentials using smartphones are quickly becoming the preferred solution for modern businesses.

Traditional Key Card Systems

Key cards (proximity cards or smart cards) have been the workhorse of commercial access control for years. Employees tap or wave their card near a reader to unlock doors.

Advantages of Key Cards:

• Proven technology: Reliable and well-understood by users
• No smartphone required: Works for employees without smartphones
• Long battery life: Passive cards require no power
• Lower reader cost: Card readers are generally less expensive

Disadvantages of Key Cards:

• Card replacement costs: $2-5 per card adds up over time
• Easy to lose: Employees frequently misplace or forget cards
• Sharing and theft: Cards can be easily shared or stolen
• Administrative burden: Physical card management and distribution
• No multi-factor authentication: Card alone isn't as secure

Mobile Credentials (Smartphone Access)

Mobile credentials turn smartphones into access keys using Bluetooth, NFC, or app-based solutions. Employees simply hold their phone near the reader or tap a button in an app.

Advantages of Mobile Credentials:

• No physical cards needed: Eliminates card costs and logistics
• Always with you: People rarely forget their phones
• Remote provisioning: Grant access instantly via app, no need to meet in person
• Enhanced security: Can require PIN or biometric on phone
• Temporary access: Easy to grant visitor or contractor access for specific times
• Automatic deactivation: Credentials can be revoked remotely when employee leaves

Disadvantages of Mobile Credentials:

• Smartphone required: Not all employees may have compatible phones
• Battery dependent: Dead phone battery means no access
• Higher reader cost: Bluetooth/NFC readers cost more upfront
• Learning curve: Some users need training on app usage

The Shift to Mobile is Accelerating

Industry data shows mobile credentials are growing at 40% annually. Major benefits driving adoption include:

• Reduced operational costs (no card printing and distribution)
• Better user experience (one less thing to carry)
• Improved security (harder to share credentials)
• Faster onboarding and offboarding

Which Should You Choose?

For most businesses in 2025, we recommend starting with mobile credentials while maintaining a backup card system for visitors or employees without smartphones. Modern access control systems support both simultaneously, giving you flexibility.

Mobile credentials are particularly beneficial for:

• Companies with high employee turnover
• Businesses managing multiple locations
• Organizations needing frequent temporary access for contractors
• Tech-forward companies looking to enhance employee experience