Stop drowning in documents. Transform your workflow; store, send, sign and collaborate just about anywhere

Designed for safely handling sensitive information, Stak was built from the ground up for the rigors of healthcare.



You can currently upload straight to web, or use the mobile capture feature in the Stak iOS app. When the Stak uploader tool launches in early 2017, you will be able to it to easily transfer documents from your computer’s desktop or direct from other applications to your HIPAA-secure Stak workspace. This will remove PHI from your computer, reduce the risk of a breach and eliminate manual steps.



Mobile signature options allow users to sign documents in the field, reducing turnaround time and workflow bottlenecks. Sign documents using a digital stamp, a typed signature or use your finger or stylus to write it on the screen of your mobile device.



Send encrypted documents (at no additional charge) to other Stak users in your organization, or via cloud faxing (using fax credits) outside of your organization. Increase productivity by sending and receiving unlimited documents simultaneously. Stay HIPAA-compliant with multi-factor authentication, custom cover pages, managed contact lists, and notifications.



All documents reside in our secure, redundant, cloud-based data center that you can access using Stak from any location on any device. Use from the web on PC or Mac, or on-the-go on iOS devices.



Collaborate inside Stak on a single document or project in custom workspaces. Use annotations and text to add notes or redact sensitive information. View real-time activity reports for the entire history of the document.



Use HIPAA-secure signatures inside of Stak with just a few clicks of the mouse and get a complete audit trail. Reorganize, rotate, delete, and add pages. Redact sensitive information before storing, exporting or sending.



Documents are encrypted at rest and in-transit in configurable workspaces. Apply role-based permissions for control. Create unlimited custom folders within each workspace and easily upload single or multiple documents. Use a simple meta data search to find those important documents.

Security and protection are in our DNA.
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“Simple, fast navigation and powerful search.”

Simon Foot

“Love the design. It feels very smooth and snappy.”

Michael Sullivan
Medical Home Team

“Easy program, but then, I thought the Sfax was easy too. Looking forward to being able to annotate, highlight and sign forms without printing and rescanning into our system!”

Jennifer Kohler, RN
Senior Nursing Services

HIPAA-compliant, seriously secure

In this breach-prone world, we take privacy and security incredibly seriously, using every precaution to make sure your confidential information stays that way.



We apply administrative, technical and physical safeguards to support your organization’s compliance with HIPAA, including executing Business Associate Agreements (BAA).



All documents are protected by military-grade encryption in transfer with 256-bit TLS and multi-layered encryption at rest with 256-bit AES.



Two-factor (Password, PIN), independent authentication. Customizable role-based permissions, IP restricted access. Automatic logoff during inactivity.


Physical Security

Our application servers, storage arrays, databases and ancillary equipment are housed in state-of-the-art SSAE16 Type II secured facilities with redundant hardware, power and internet connectivity.

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HIPAA-secure from anywhere. Stak for iOS is now available.

Stak is designed for healthcare and other industries that demand business-critical services.

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Stak for iOS

Capture, manage, search, sign and send PHI on the go.


Capture and upload documents from your mobile device to your Stak workspace.

Sign documents from the app and reduce turnaround time.

Move between folders and shared workspaces to create custom workflows.

Easily sign in using Touch ID

Audit trail and activity tracking - A complete audit trail is generated for all activity that occurs on each document for full HIPAA compliance.

Documents are protected by strong encryption within our SSAE16 Type 2 data centers.

HIPAA-secure with no additional configuration required.