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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 K1VPN?

K1VPN provides secure VPN access for individuals, travelers, remote workers and privacy-conscious users. The service supports WireGuard, IKEv2, OpenVPN and VLESS, offers 82 servers in more than 45 countries and allows up to 10 simultaneous connections. Customers can choose subscriptions ranging from 7 days to 2 years and connect using open-source and standard VPN clients. K1VPN publishes a no-logs policy, supports lawful P2P and BitTorrent traffic and offers a 48-hour free trial. Payments are available by card, Bitcoin on-chain and Lightning. An anonymous cryptocurrency checkout is available for customers who prefer to create an account without providing an email address.

Media

Media

Integrations Supported

Integrations Supported

BTCPay
OpenVPN Access Server
WireGuard

API Availability

API Availability

Has API

Pricing Information

$14 one-time payment
Free Version

Pricing Information

€3.99/month (2 year plan)
7 days: €2.99
30 days: €9.99
3 months: €25.99
6 months: €39.99
1 year: €59.88
2 years: €95.76

Prices include VAT. Payments are accepted by card, Bitcoin on-chain and Lightning. A 48-hour free trial is available.
Free Trial Offered?

Supported Platforms

Windows
Mac

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

SparkLabs

Date Founded

2008

Company Website

www.sparklabs.com/viscosity/

Company Facts

Organization Name

K1VPN LLC

Date Founded

2026

Company Location

United States

Company Website

k1vpn.com

Categories and Features

VPN

Not specified

Categories and Features

VPN

Anonymous Browsing
DNS Leak Protection
For Digital Security
For Gaming
For Streaming
Kill Switch
Multi-Language
Multi-Protocol
Peer-to-Peer

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