ISL Online: The TeamViewer Alternative

The remote access solution with the fewest limits on licensed users and managed devices, human support for all, and the industry's lightest client.

  • All-inclusive, flexible, and straightforward licensing based on concurrent users.
  • Mobile apps included in the license at no extra cost.
  • All remote desktop and remote access essential features available at a better price.
  • User-friendly one-time codes and links allow clients to join via industry's lightest client without any technical knowledge.
  • Scale up (or down) your license seamlessly online. No letters of prior notice or phone calls required.
  • Human-centered support available to all users, even during trials, with prompt escalation of technical issues that require more hands-on expertise.
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ISL Online is trusted by leading brands worldwide

Join hundreds of companies worldwide that already trust ISL Online’s secure remote access solution!

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What’s the main difference?link

ISL Online

  • Transparent licensing based solely on concurrent users with limits for licensed users and managed devices set significantly higher than TeamViewer.
  • Connects all users directly to real support agents through multiple channels. Offers extended support hours with prompt escalation of technical issues that require more hands-on expertise.
  • Premium features such as SSO, Premium support with fast-track assistance, rich customization options and white label, mass deployment, mobile apps, and many more are available at much lower price.
  • Remote access software for professionals only. No freemium model.
  • Ideal for businesses seeking unlimited licensed users and managed devices without escalating costs, combined with human-centered support and user-friendly connection options for non-technical users.

TeamViewer

  • Add-on centered framework with tiered plans plus modular add-ons that increase both in cost and complexity.
  • Restricted support options to paying users only. Offers standard business hours assistance with extended hours and response times for enterprise customers.
  • Premium features available only within Teamviewer Tensor, Teamviewer's priciest plan, which does not display pricing publicly on their website.
  • TeamViewer offers a freemium model designed for personal, non-commercial use, which comes with significant limitations and restrictions.
  • Ideal for organizations requiring specialized applications for different support scenarios with advanced add-ons, such as TeamViewer Assist AR Lite (at an extra cost) that allows AR-assisted troubleshooting and more integration options.
Feature-rich but Simple
Feature-rich but Simple

Ready to switch from TeamViewer to ISL Online?

Get started in 3 easy steps!

1. Create an account

Sign up for a free ISL Online account. No credit card required.

2. Import your users

Easily import your users to ISL Online. Our support team is ready to assist every step of the way.

3. Mass deploy on computers

Set unattended access across multiple computers using our Custom Deployment Link.

Start Your Free 15-Day Trial!

No credit card required.

Why choose ISL Online over TeamViewer?link

Switch to ISL Online for its ease of use, cost-effective scaling, and reliable support. Solve issues with a solution built for simplicity and security.

Simple and transparent pricing

ISL offers an all-inclusive licensing model that grows with your needs. No more complexity.

TeamViewer

Add-on centered framework combines tiered plans with modular add-ons that increase both cost and complexity. Entry-level Remote Access plan allows only one licensed user and three unattended devices, with mobile support offered as a separate add-on.

ISL Online

ISL Online offers a straightforward all-inclusive licensing model based on concurrent users.

Enjoy generous limits on licensed users and managed devices across all plans with no complex upsells or add-ons. Every tier includes mobile support and recording, capabilities that TeamViewer reserves for premium tiers, while our Premium plan gives you unlimited users and managed devices.

Choose from cloud-based, or self-hosted, options to match your exact needs without hidden costs or device restrictions that limit your scalability.

Simple and transparent pricing
Human-centered support for everyone

Get expert help when you need it, even during your trial period.

TeamViewer

Restricts all support options to paying users only. During your trial period, you're left to figure everything out on your own with no assistance available.

ISL Online

ISL Online connects you directly to real support agents through multiple channels, regardless of subscription status.

Live chat connects you to a human operator within seconds, even during your 15-day trial. Technical issues that require more hands-on expertise get escalated promptly.

With extended support hours (8:00-22:00 CET for live chat) and local offices in multiple countries around the globe, help is always available when you need it, in contrast to competitors’ limited support hours and tiered response times.

With Premium Support you receive fast-track assistance, ensuring your queries are answered with utmost priority.

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Chat with support

Weekdays: 08:00 to 22:00
Central European Time (CET)

Start Chat
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Send us a message

We will get back to you within one business day.

Write Message
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Request a quote

Contact our sales team for a custom quote.

sales@islonline.com
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Call us

Weekdays: 08:00 to 22:00
Central European Time (CET)

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User-friendly connections

Make remote support accessible for all users, also on slow networks.

TeamViewer

The relatively large client size (30MB+) requires considerable system resources, which may affect performance, particularly for users with limited bandwidth or older hardware.

ISL Online

ISL Online generates one-time codes or links that allow clients to join sessions instantly via our ultra-lightweight app. It launches in seconds, even on older devices and slow connections, ensuring seamless support without delays.

Furthermore, ISL's efficient resource usage ensures the remote session doesn't drain system performance so you can maintain responsiveness on the remote device while you work.

Meanwhile, our client-friendly connection system makes it incredibly simple for non-technical users to get support without confusion.

User-friendly connections
Advanced Remote Tools

Use specialized tools that enhance productivity without additional costs.

TeamViewer

Offers basic remote access capabilities and requires premium tiers or add-ons for specialized functions like comprehensive audit logs, mass deployment, mobile device support, incoming connection reporting and some others.

ISL Online

ISL Online’s Standard Plan includes access to the Administration Dashboard, where you can centrally manage your remote computers and users. Organize your devices into computer groups, create new users or user groups, and assign tailored permissions to control access to specific computers or groups. You can also configure domain-wide settings that apply to all users.

The Audit page provides a detailed log of all activities within the Administration Dashboard, enabling efficient oversight and traceability.
You can filter events by type (e.g., “user created”), user, timestamp, event status, and more. For each entry, you can see when the event occurred, whether it was successful, who initiated it, and other relevant details.

Advanced Remote Tools
Direct, secure connections

Secure your computers with minimal data exposure.

TeamViewer

Provides strong authentication and industry certifications. Offers freemium tier which supports broad user adoption but may introduce security risks if not properly controlled and monitored.

ISL Online

ISL Online complies with strictest security standards and holds key industry certifications. It does not offer a freemium plan, as it is designed exclusively for professional use.

For remote access devices (ISL AlwaysOn), ISL Online uses a computer access password architecture that keeps credentials tied to individual computers rather than user accounts. This means that even in the unlikely event of server compromise, attackers couldn't gain access to your machines.

ISL Online's security-first design includes automatic clipboard clearing when sessions end, operator-initiated connections, and unique session codes for each connection.

These and other architectural decisions have made ISL Online a trusted choice among banks, healthcare providers, and security-conscious organizations worldwide for over 22 years.

User-friendly connections
Side-by-side plan comparison

ISL Online vs. Teamviewerlink

Teamviewer Business

€57,80

per month/billed yearly

ISL Online Standard

€29,90

per month/billed yearly
Licensed user 1 licensed user 40 licensed users
Concurrent connections 1 concurrent channel
(up to 3 concurrent sessions per channel in tabs)		 1 concurrent user
(unlimited concurrent sessions per same user)
Managed devices 200 managed devices 1000 managed devices
File transfer
Unlimited attended devices to connect to
Record and playback sessions
Switch sides
Custom branding
Mobile device support
Phone support
Unlimited managed devices to connect to ⎯
Unlimited devices to connect from ⎯
Outgoing connection reporting ⎯
Incoming connection reporting ⎯
Mass deployment ⎯
Standard integrations add-on (ServiceNow, Freshworks, and others) ⎯

Data as of 01/10/2025

Teamviewer Premium

€90,80

per month/billed yearly

ISL Online Premium

€49,90

per month/billed yearly
Licensed user 15 licensed user unlimited licensed users
Concurrent connections 1 concurrent channel
(up to 10 concurrent sessions per channel in tabs)		 1 concurrent user
(unlimited concurrent sessions per same user)
Managed devices 200 managed devices unlimited managed devices
Enterprise-grade security
Phone support
Unlimited devices to connect to
Unlimited devices to connect from
Outgoing connection reporting
Mobile device support
Incoming connection reporting
Mass deployment ⎯
SSO ⎯
Advanced customization / White label ⎯
Standard integrations add-on (ServiceNow, Freshworks, and others) ⎯

Data as of 01/10/2025

ISL Online is made to connect!link

Since 2001, our mission has been to deliver secure and reliable software to IT professionals and help desk technicians, from small and medium-sized businesses to Fortune 500 companies.

support_agent
Remote Support

Allowing IT and support to access and control end-user devices to diagnose and fix issues without physical presence.

home_work
Remote Work

Screen sharing technology enables you to efficiently work remotely at any time, from anywhere in the world.

Remote monitors
devices
Unattended Access

Enabling IT Admins to securely connect to and operate unattended computers or servers from any location.

co_present
Remote Sales

Boost sales by sharing your screen with potential customers. Present your products or services in real time, offering an engaging and interactive sales experience.

Najbolj cenimo izkušnje svojih uporabnikovlink

Priporočajo nas naši uporabnikilink

Capterra
Capterra
G2 Crowd
Sourceforge
Sourceforge

Ready to switch to ISL Online?

Experience unlimited users and devices, human-centered support, and user-friendly connections with ISL Online's all-inclusive licensing model.

Start Your Free 15-Day Trial!

No credit card required.

Have more questions ?link

Everything you need to know about the product and license.

  • How does ISL Online's security compare to TeamViewer?

    ISL Online's security architecture fundamentally differs from TeamViewer's in several key ways:

    Unlike TeamViewer's account-based system, ISL Online uses system-based password protection for remote access devices (ISL AlwaysOn) keeping credentials tied to individual machines rather than user accounts.

    Our security-first approach includes automatic clipboard clearing when sessions end, operator-initiated connections, and unique session codes for each connection. We don't offer a freemium tier, which makes us less targeted by users with malicious intent compared to TeamViewer.

    Our security architecture has made ISL Online a trusted choice among banks, healthcare providers, and security-conscious organizations worldwide for over 22 years.

  • What does "concurrent user" mean?

    A concurrent user is anyone who runs one or multiple sessions at the same time from any device. The number of purchased licenses determines the maximum number of concurrent users within your organization.

    For example, with 3 licenses, users A, B, and C can each run multiple concurrent sessions on their devices, while additional users will need to wait for an available license to start their session.

  • Is there a minimum contract length or commitment for ISL Online?

    ISL Online offers flexible licensing options to suit your needs with no long-term commitment required:

    • Annual subscriptions: Standard, Premium, and Self-Hosted plans with yearly billing
    • Custom Enterprise plans: Tailored solutions for larger deployments

    You can easily upgrade, downgrade, or cancel your subscription at any time online. No prior notice needed.

    All plans include a 15-day free trial with no credit card required, giving you time to fully evaluate the platform. Unlike TeamViewer's restrictive trial that provides no support, our trial includes access to our human support team to help you get started right away.

  • What security certifications does ISL Online have?

    SL Online maintains an extensive certification and compliance adherence portfolio.

    Certificates:

    • ISO/IEC 27001 (Information Security Management),
    • ISO 14001:2015 (Environmental Management),
    • ENS High-Level Security Measures,
    • ACN: Italian National Security Framework

    Compliance adherence:

    • DORA (Digital Operational Resilience),
    • SOC 2 (Service Organizations),
    • NIS-2 Directive (Cybersecurity),
    • WCAG 2.0 (Accessibility),
    • GDPR (Data Protection),
    • Cyber Essentials (UK),
    • HIPAA (Healthcare),

    Our security architecture features AES 256-bit encryption, ECDSA P-256 key negotiation, two-factor authentication, and direct connections via STUN/TURN technology.

  • How does ISL Online handle multi-monitor setups?

    ISL Online provides the most intuitive multi-monitor experience with three distinct viewing modes:

    • View each monitor in its own separate window with full drag-and-drop functionality between windows
    • Switch between individual monitors with a simple selection interface
    • View all monitors simultaneously in a single window
  • How does ISL Online handle unattended access at scale?

    ISL Online offers comprehensive mass deployment capabilities designed for enterprise environments: deploy via email, links, session codes, or during active sessions, generate personalized links with predefined parameters (computer alias, groups, tags), deploy settings across multiple machines simultaneously, organize computers into groups with granular access permissions, set specific access hours, session duration limits, auto-termination, and connect to remote machines without VPN configuration or firewall changes.

  • What operating systems and devices does ISL Online support?

    ISL Online supports all major platforms:

    • Windows
    • macOS
    • Linux
    • Android & iOS: Mobile apps for remote support and access
    • Browser-based access for operators

    Our ultra-lightweight client runs efficiently even on older devices and slow connections, unlike TeamViewer's resource-intensive 30MB+ client.

  • Will I lose any functionality when switching from TeamViewer?

    That depends on your current TeamViewer plan. TeamViewer offers specialized annotation tools and augmented reality features, however, ISL Online has other advantages:

    • Ultra-lightweight client (1.9MB vs TeamViewer's 30MB+)
    • Mobile apps included at no extra cost
    • Premium features available at a lower price
    • Advanced customization
    • Mass deployment
    • Advanced file management with detailed audit trails
    • Human-centered support available even during trials

    We will assist you with the TeamViewer data export/import process to ensure a smooth and seamless transition to ISL Online. Using our Custom Deployment Link Wizard it’s easy to install unattended access across multiple remote computers.

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Still not convinced?

Learn all about the differences between TeamViewer and ISL Online in our in-depth comparison article.

Read TeamViewer vs ISL Online