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Total 0 out of 5 stars
ease 0 out of 5 stars
features 0 out of 5 stars
design 0 out of 5 stars
support 0 out of 5 stars

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Ratings and Reviews 2 Ratings

Total 5 out of 5 stars
ease 4.5 out of 5 stars
features 5 out of 5 stars
design 5 out of 5 stars
support 5 out of 5 stars

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What is Viscosity?

Viscosity has been expertly designed to function flawlessly on both macOS and Windows, utilizing native frameworks to achieve the best performance possible. For over a decade, Viscosity has served a diverse clientele, from individual users to large corporations, continually releasing updates aimed at improving the overall user experience. It keeps a vigilant eye on OpenVPN connections, delivering essential information about traffic, network status, and connection details in an appealing format. Users have the convenience of easily packaging Viscosity with pre-configured settings and connections for rapid deployment. The software simplifies the creation of profiles that can be deployed, making it user-friendly. With comprehensive authentication options, organized connection folders, support for IPv6, traffic obfuscation, and the capability to manage various simultaneous connections, Viscosity is equipped with an impressive array of features. Each component is meticulously crafted to optimize the speed and reliability of OpenVPN connections. Furthermore, Viscosity supports control via AppleScript or VBScript, allowing users to execute custom scripts and actions based on VPN connection state changes. This degree of customization not only enhances functionality but also guarantees that users can tailor their experience to align perfectly with their unique networking requirements. The software’s versatility makes it a top choice for anyone needing a reliable VPN solution.

What is OpenVPN Access Server?

OpenVPN Access Server is a self-hosted Zero Trust Network Access (ZTNA) solution that runs inside your own environment — on-prem or your AWS, Azure, or GCP account — keeping tunnel traffic and configuration off any third-party network. Access is scoped to the application, not the IP or subnet: each user is routed only to the specific app they're authorized for, identified by domain name, with nothing else on the network visible to them. That makes lateral movement structurally impossible, not just restricted by policy. Access Server Link turns setup into a guided flow (hostname, cloud, region, password), with SSL certificates provisioned and renewed automatically, eliminating manual certificate handling as a source of risk. Because entitlements are bound to hostname rather than IP, they hold up through IP changes and autoscaling with no manual rework. Your instance remains entirely under your control, giving you the data ownership and audit trail needed for HIPAA, SOC 2, and GDPR — full control of the stack, delivered with SaaS-level ease. Administration happens through a browser-based portal instead of SSH: users, certificates, and access rules are managed without shell access, narrowing your attack surface. The Zero Trust App Broker routes each connection through a placeholder IP tied to a single authorized app — the real destination stays hidden, so a stolen credential offers no way to scan or reach other systems. Least privilege is built into the architecture, not left to policy that can drift. Native clients cover Windows, macOS, iOS, Android, and Linux, keeping identity- and app-based controls consistent across every endpoint. Templated deployment on AWS, Azure, and GCP means security teams get standardized, auditable rollouts rather than one-off manual builds.

Media

Media

Integrations Supported

Integrations Supported

1Kosmos
ADrive Enterprise
AWS Client VPN
AWS Marketplace
Acceptto Zero Trust Identity (CIAM)
Acceptto eGuardian
Apono
Auth0
AuthControl Sentry
AuthPoint
DCXV
Domotz
Google Workspace
IPFire
It'sMe
Live Proxies
Microsoft Authenticator
RapidVPN
Skycloak
SolusIO

API Availability

API Availability

Pricing Information

$14 one-time payment
Free Version

Pricing Information

Free Up to 2 connections
Dependent on the number of connections and monthly or annually. If annual, under 100 connections, $7 per connection per month. If monthly, under 100 connections, $9 per connection per month. Over 100 connections will get lower pricing.
Free Version
Free Trial Offered?

Supported Platforms

Windows
Mac

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub
Webinars
Online Training

Company Facts

Organization Name

SparkLabs

Date Founded

2008

Company Website

www.sparklabs.com/viscosity/

Company Facts

Organization Name

OpenVPN

Date Founded

2001

Company Location

United States

Company Website

openvpn.net

Categories and Features

VPN

Not specified

Categories and Features

IT Management

Remote Access

IT Security

Not specified

Network Security

Access Control
Analytics / Reporting
VPN

Proxy Servers

Not specified

Secure Remote Access

Not specified

VPN

For Digital Security
For Financial Security
For Gaming
For Streaming
Policy Management
Remote Access

Zero Trust Security

Not specified

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