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.
Free for 15 Days
No credit card required
ISL Online is trusted by leading brands worldwide
Join hundreds of companies worldwide that already trust ISL Online’s secure remote access solution!
Start Free TrialNo credit card required.
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.
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.
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.
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.
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.
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.
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.
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Teamviewer Business €57,80 per month/billed yearly |
ISL Online Standard €29,90 per month/billed yearly |
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|---|---|---|
| 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
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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.
Remote Support
Allowing IT and support to access and control end-user devices to diagnose and fix issues without physical presence.
Remote Work
Screen sharing technology enables you to efficiently work remotely at any time, from anywhere in the world.
Unattended Access
Enabling IT Admins to securely connect to and operate unattended computers or servers from any location.
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.
Users' Feedback is What We Value the Mostlink
"All around easy to use, be it on client end, agent end or supervisor/admin. Small file size so the set up on customer end is swift and we can go to resolving the issue quickly."
Klemen K., Team Leader
Banking
"I love this software. The customer service is amazing and anything I need help; they are always there to help me."
Cecil D., IT Coordinator
Education Management
"ISL Light is one of the rare remote tools that supports multi-monitors super easily, which was one of the most important features I looked for."
Verified User, Head of IT
Information Technology
"Numerous features that I haven't seen in other commercial software like connecting via Microsoft's RDP, better control over image/quality settings, ability to change resolution, ability to split different monitors to different windows and most importantly - simulate text feature."
Amir A., IT Team Lead
Computers & Gaming
"ISL is extremely easy to deploy. It is versatile and works on pretty much ANY OS. I use it daily on Linux (OpenSUSE) and Windows."
Adam G., Director
Hospital & Health Care
"I am highly impressed with the speed and efficiency of their software. Having used remote access software from various major brands, I can confidently say that ISL stands out, especially in terms of quick access and swift screen redraws at the technician's end."
Luis P., IT Manager
Computer and network security
"This is so easy to install and has a very light footprint on the computer it is running on and is great that it works on a Mac or a Windows PC or Server."
Martin M., IT Manager
Apparel & Fashion
"We often carry out multi-session remote maintenance, where we manage up to 8 devices at the same time. The software always ran 100% reliably. No crashes, no problems, everything fits perfectly."
Andreas S., Head of IT
Information Technology and Services
"Brilliant, we've been with them for 4-5 years now after switching from Log me in. Its very easy to use, quick to connect to users machines and never seems to freeze or have connection issues, which is vital to our business."
Gary P., Managing Director
Hospital & Health Care
"No version hassles like competitors or extreme pricing for features. It has an API so we can nicely integrate it in our website so we can create easy ready to go sessions for clients without needing to pass ID's and passwords etc."
Bart V., CEO
Information Technology and Services
"I love that you can self host ISL and your license comes with everything without a bunch of addons. The service has been super stable and easy to administrate/update with no real issues."
Kris K., CEO
Information Technology and Services
"Easily the best IT Tool I have in my "kit bag" it has all I need to help support my end users on both Windows and Apple computers, as well as Mobiles."
Stuart S., IT Director
Information Technology
"Overall, this has been a great tool. I have used many other software in this field but so far this one is the best value."
Walter W., Network Administrator
Commercial Real Estate
"What I like most about ISL is the ease of connection, the environment and file transfer, it has many additional utilities, one of the ones I use the most is writing text from the clipboard for when it doesn't allow pasting on the type of screen."
Aaron A., IT Support
Computer Networking
Recommended by Our Userslink
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.
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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.
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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.
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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.
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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.
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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
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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.
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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.
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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.
Try 15 Days For Free
Enjoy your new remote desktop experience!
All features included. No credit card required.
Still not convinced?
Learn all about the differences between TeamViewer and ISL Online in our in-depth comparison article.
Read TeamViewer vs ISL Online