Sub Rosa Pro

Offers in-app purchases

**NEW** Sub Rosa Pro for Android is now a PDF signing and editing app! Our new in-app subscription purchase allows for PDF and XFA documents to be digitally signed using your smart card.

You should not need Sub Rosa Pro for Android if you have purchased one of our Android PKard Reader bundles here:

Your Android PKard Reader bundle includes a software license for use with Sub Rosa for Android at no additional cost available for download here:

Are you tired of having to take your heavy laptop, tangled charger, and clunky card reader with you on trips? Do you want to send signed and encrypted emails and access PIV/CAC protected sites right from your Android phone or tablet?

With Sub Rosa Pro for Android you can do this and more! Sub Rosa Pro for Android includes all of the same great features as Sub Rosa for Android with added support for 3rd party readers (any USB reader that shows up as a CCID device) and derived credentials.

Sub Rosa Pro for Android is a strong, two-factor CAC/PIV secure authentication agent and web browser that smoothly coordinates reader and card access on your Android phone or tablet. Sub Rosa Pro provides full access to your OWA calendar. Allowing you to view, create, and respond to events from your Android phone or tablet.

How does it work?

Instead of a username and password, Sub Rosa Pro for Android uses US Government CAC or PIV smart cards and PINs with authentication to a card reader accessory or derived credential. This allows you to log-in to two-factor websites and sign, encrypt, and decrypt email. This also gives you full access to calendaring, which makes managing and coordinating meetings easier than ever.

Thursby is the market leader in secure Apple and Android Department of Defense (DoD), government and highly regulated enterprise integration, delivering the security features absent in native Android, Apple, and generic enterprise tools. Thursby is US owned and operated and General Services Administration (GSA) listed, delivering innovative Apple and Android products and services for over a quarter century.

US technical and commercial support is by real people, over the phone and by email from Arlington, Texas. Please contact us via, or +1 (817) 478-5070. Please visit for FAQs, guides, and other helpful information.

Supports industry and US Government standards including ISO 7816, NIST IR 6887, HSPD-12, OMB-11-11, FIPS 140-2 and FIPS 201 (with an approved reader). Most popular smart card types are supported including CAC, Dual Persona CAC, PIV, and PIV-I.

** NOTES **
• Subscription based feature allowing PDF and XFA documents to be digitally signed using your smart card
• Device must support USB host mode or On-The-Go (OTG). You can find a list of known compatible devices here:
• Perceived performance depends on Wi-Fi or cell bandwidth, internet “weather” and back-end data center or cloud infrastructure
• Sub Rosa Pro is an integral part of the PKard Toolkit for Android secure app development and policy management ecosystem
• The Google Play app is an individual/consumer distribution, custom builds are available for organizations
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What's New

Fixed an issue where you may not be able to send an encrypted email.
Read more

Additional Information

Eligible for Family Library
Eligible if bought after 7/2/2016. Learn More
September 9, 2020
Current Version
Requires Android
7.0 and up
Content Rating
Interactive Elements
Users Interact, Unrestricted Internet
In-app Products
$0.99 - $59.99 per item
Offered By
Thursby Software Systems, LLC
4901 S. Collins St. Arlington, Texas 76018
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