What is readerless mobile access?
Readerless NFC mobile access is a software-only upgrade for legacy access control systems that lets users unlock doors using their smartphone’s built-in NFC chip, without replacing existing proximity card readers or installing new hardware. The smartphone acts as both the credential and the active NFC reader.
What is readerless NFC mobile access?
Carry your mobile NFC reader in your pocket
Why have the reader at the door…
We flip conventional mobile access control on its head whereby the user’s smartphone works as the active NFC mobile door reader.
Install our wire-free smart access tile next to your door and carry your mobile reader with you.
Why choose readerless NFC access control?
The most secure mobile access reader is already in your hands
Think about it…
Your smartphone is constantly getting updated to the latest technology and top security.
A smartphone is the most advanced and best specced reader you could ever wish for, which is why we decided that instead of ‘rip and replace’ we’d turn the user’s smartphone into a reader that never needs upgrading or becomes obsolete and works with all major access control systems.
Turning mobile credentialing on its head
Rip and replace vs using the mobile as the NFC door access reader
Access control reader rip and replace
Using the mobile as the door access reader
Security
Cost
Operational disruption
Time to deploy
Access options
Interoperability
Ready to future proof your building’s mobile access control
Future-proof your access control system today, maximize user convenience, and retain building occupancy with our reader-less mobile credentials. Get in touch with us, we will get back to you within 24 hours.
Leveraging Apple and Android NFC technology
The first in-app mobile credential solution to leverage Apple and Android NFC technology outside Wallet apps.
Our readerless mobile credentials work within proprietary mobile applications for Android and iOS users. Avoiding complexities that come with Wallet apps.
Physical access control system integrations
Our readerless mobile access software and NFC technology is compatible with most major physical access control systems.

















Embrace the fastest route to flexible mobile credentials
Extend the life of your access control systems and provide the choice of secure NFC mobile credentials to automate operations and optimize user experience.
Connect with a member of our team within 24 hours.
Get a system audit for integration.
Deploy and activate mobile credentials within days.
Seamless, secure, and reliable mobile credentials
Sentry Interactive’s readerless mobile access software is engineered for comprehensive security, utilizing a standards-driven development process to decrease risk. Military-grade encryption protects user access data in the cloud, while audit logging and privacy regulation compliance further secure the data.
Don't just take our word for it. Learn from our customers
Frequently asked questions
Readerless NFC mobile access flips conventional access control around by using the user’s smartphone as the active NFC reader, rather than having a dedicated reader installed at the door. A battery-free Smart Access Tile is placed next to the door, and users simply tap their phone against it to unlock — no reader hardware on the door is required at any point.
No. Sentry Interactive’s mobile credential software does not rely on upgrading your existing door reader hardware, your existing BLE or proximity card readers can stay in place. The smartphone acts as both the reader and the credential, meaning there is no rip and replace of hardware, no rewiring, and no disruption to your current access control infrastructure.
Yes. A smartphone is continuously updated with the latest operating system security patches, two-factor authentication, and face ID, making it a more advanced and more current reader than fixed door hardware, which requires manual firmware updates. Sentry Interactive’s mobile credentials are also stored in the cloud and use asymmetric encryption, follow NIST best practices, and are the only NFC mobile credential solution to be NIST compliant by using the smartphone itself as the reader.
Deployment is significantly faster than a traditional reader upgrade. Mobile credentials can be integrated with an existing access control system and rolled out to doors within days via a software integration, compared to the weeks or months typically required for physical reader replacement across a site.
Yes. Sentry Interactive was the first in-app mobile credential solution to leverage both Apple and Android NFC technology outside of Wallet apps. The solution works within proprietary mobile applications on both iOS and Android devices, avoiding the complexities associated with Wallet app integrations while still delivering fast, secure tap-to-unlock NFC access.