ISL Online vs RealVNC Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

ISL Online

0.0 (0 reviews)

ISL Online provides a secure remote desktop software solution that allows you to access and control remote computers or provide technical support to your customers instantly.

Starting at $39/mo
Free Trial 15 days
VS

RealVNC

0.0 (0 reviews)

RealVNC provides secure remote access and support software that allows you to connect to and control computers or mobile devices from anywhere in the world.

Starting at $3.59/mo
Free Trial 14 days

Quick Comparison

Feature ISL Online RealVNC
Website islonline.com realvnc.com
Pricing Model Subscription Subscription
Starting Price $39/month $3.59/month
FREE Trial ✓ 15 days free trial ✓ 14 days free trial
Free Plan ✘ No free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment cloud on-premise mobile desktop saas on-premise desktop mobile
Integrations Microsoft Teams Slack Salesforce Zendesk Freshdesk Jira Autotask Microsoft Active Directory Microsoft Teams Slack Zendesk Freshservice ServiceNow Active Directory Azure AD Okta
Target Users small-business mid-market enterprise small-business mid-market enterprise
Target Industries IT Services Healthcare Education
Customer Count 0 0
Founded Year 2003 2002
Headquarters Ljubljana, Slovenia Cambridge, UK

Overview

I

ISL Online

ISL Online is a versatile remote desktop platform designed to help you provide technical support and access remote computers from anywhere. You can quickly connect to unattended machines or provide on-demand assistance to clients without requiring them to install complex software. The platform focuses on high-security standards, including AES 256-bit encryption and two-factor authentication, ensuring your remote sessions remain private and protected.

You can choose between cloud-based hosting or an on-premise installation if your organization requires total control over your data. It supports a wide range of operating systems including Windows, Mac, Linux, iOS, and Android. Whether you are a solo IT professional or part of a large enterprise help desk, you can manage multiple simultaneous sessions and collaborate with teammates to resolve technical issues faster.

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RealVNC

RealVNC helps you bridge the gap between locations by giving you full control over remote screens as if you were sitting right in front of them. Whether you are managing a global IT infrastructure, providing technical support to customers, or simply accessing your office files from home, the platform ensures a smooth and responsive experience. You can manage unattended access for servers or provide on-demand support for end-users with ease.

The software is built with security at its core, featuring 256-bit AES encryption and multi-factor authentication to keep your connections private. It works across Windows, Mac, Linux, and mobile platforms, making it a versatile choice for diverse tech environments. You can start with a 14-day free trial to explore the full feature set before choosing a plan that fits your team size.

Overview

I

ISL Online Features

  • Remote Desktop Control Take full control of a remote computer or mobile device to troubleshoot issues as if you were sitting right in front of it.
  • Unattended Access Set up permanent access to your remote servers or office computers so you can log in securely at any time without a person present.
  • File Transfer Send and receive files between your local and remote machines quickly using a dedicated file manager or simple drag-and-drop.
  • Multi-Monitor Support View and control all screens of a remote computer simultaneously or switch between them to manage complex multi-monitor setups.
  • Session Recording Record your remote support sessions automatically for quality assurance, security auditing, or training purposes within your team.
  • White-Label Customization Apply your own branding, logos, and colors to the software to provide a consistent and professional experience for your clients.
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RealVNC Features

  • Cross-Platform Control. Access and control Windows, macOS, Linux, and Raspberry Pi devices from your desktop or mobile device seamlessly.
  • Attended and Unattended Access. Connect to remote computers even when no one is there or provide instant support to active users.
  • End-to-End Encryption. Protect your data with 256-bit AES session encryption and multi-factor authentication for every remote connection you make.
  • File Transfer and Printing. Move files between devices quickly and print documents from remote machines to your local printer with one click.
  • In-Session Chat. Communicate with users in real-time during support sessions to resolve technical issues faster and more effectively.
  • Cloud and Direct Connectivity. Choose between easy cloud-brokered connections or direct peer-to-peer links for environments without internet access.

Pricing Comparison

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ISL Online Pricing

Cloud Subscription
$39
  • Unlimited workstations
  • Unlimited users
  • One simultaneous session
  • All platforms supported
  • Mobile apps included
  • Standard customization
R

RealVNC Pricing

Device Access
$3.59
  • Minimum 3 devices
  • Unattended access
  • 256-bit AES encryption
  • File transfer and remote printing
  • Cloud and direct connectivity
  • Multi-factor authentication

Pros & Cons

M

ISL Online

Pros

  • Reliable connection stability even on low bandwidth
  • Simple interface makes it easy for clients to join
  • Excellent security features including two-factor authentication
  • Flexible licensing model based on simultaneous sessions
  • Responsive and helpful technical support team

Cons

  • Mobile app interface feels slightly dated
  • Initial setup for unattended access takes time
  • File transfer speed can vary on large files
A

RealVNC

Pros

  • Exceptional screen refresh rates and low latency
  • Very easy to set up across different operating systems
  • Strong security features provide peace of mind
  • Reliable performance even on lower bandwidth connections

Cons

  • Mobile app interface can feel slightly cramped
  • No longer offers a forever-free version for individuals
  • Initial configuration for direct connections is technical
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