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.

  • Allumfassende, flexible und unkomplizierte Lizenzierung auf Basis der Anzahl der gleichzeitigen Benutzer.
  • Mobile apps included in the license at no extra cost.
  • Alle wichtigen Funktionen für Remote-Desktop und Remote-Zugriff zu einem günstigeren Preis.
  • 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.
Learn more ->

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 Trial

No credit card required.

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.
  • Verbindet alle Benutzer über mehrere Kanäle direkt mit echten Support-Mitarbeitern. Bietet verlängerte Supportzeiten mit sofortiger Eskalation von technischen Problemen, die mehr praktisches Fachwissen erfordern.
  • 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

  • Das Add-on-zentrierte Framework mit gestaffelten Plänen und modularen Add-ons, die sowohl die Kosten als auch die Komplexität erhöhen.
  • 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. Ein Konto erstellen

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

2. Importieren Sie Ihre Benutzer

Importieren Sie Ihre Benutzer ganz einfach in ISL Online. Unser Support-Team steht Ihnen bei jedem Schritt zur Seite.

3. Massenbereitstellung auf Computern

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

Das auf Add-ons basierende Framework kombiniert gestaffelte Tarife mit modularen Add-ons, die sowohl die Kosten als auch die Komplexität erhöhen. Der Einstiegstarif „Remote Access“ erlaubt nur einen lizenzierten Benutzer und drei unbeaufsichtigte Geräte, wobei der mobile Support als separates Add-on angeboten wird.

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.

Wählen Sie zwischen cloudbasierten oder selbst gehosteten Optionen, die genau Ihren Anforderungen entsprechen, ohne versteckte Kosten oder Gerätebeschränkungen, die Ihre Skalierbarkeit einschränken.

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.

support_agent
Chat mit dem Support

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

Start Chat
send
Send us a message

We will get back to you within one business day.

Write Message
mail
Request a quote

Kontaktieren Sie unser Verkaufsteam für ein individuelles Angebot.

sales@islonline.com
phone_enabled
Rufen Sie uns an

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

Find Local Partner
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
Erweiterte Fernwartungstools

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.

Erweiterte Fernwartungstools
Direkte, sichere Verbindungen

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 lizenzierter Benutzer 40 lizenzierte Benutzer
Gleichzeitige Verbindungen 1 concurrent channel
(up to 3 concurrent sessions per channel in tabs)		 1 concurrent user
(unlimited concurrent sessions per same user)
Managed devices 200 verwaltete Geräte 1000 verwaltete Geräte
File transfer
Unlimited attended devices to connect to
Record and playback sessions
Switch sides
Individuelles 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) ⎯

Daten vom 01.10.2025

Teamviewer Premium

€90,80

per month/billed yearly

ISL Online Premium

€49,90

per month/billed yearly
Licensed user 15 lizenzierte Benutzer unlimited licensed users
Gleichzeitige Verbindungen 1 concurrent channel
(up to 10 concurrent sessions per channel in tabs)		 1 concurrent user
(unlimited concurrent sessions per same user)
Managed devices 200 verwaltete Geräte 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 ⎯
Erweiterte Anpassungsmöglichkeiten / White Label ⎯
Standard integrations add-on (ServiceNow, Freshworks, and others) ⎯

Daten vom 01.10.2025

ISL Online is made to connect!link

Seit 2001 ist es unsere Mission, IT-Fachleuten und Helpdesk-Technikern, von kleinen und mittleren Unternehmen bis hin zu Fortune-500-Unternehmen, sichere und zuverlässige Software zu liefern.

support_agent
Remote Support

IT- und Support-Mitarbeitern den Zugriff auf und die Steuerung von Endbenutzergeräten ermöglichen, um Probleme ohne physische Anwesenheit zu diagnostizieren und zu beheben.

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

IT-Administratoren können sich von jedem Standort aus sicher mit unbeaufsichtigten Computern oder Servern verbinden und diese bedienen.

co_present
Remote Sales

Steigern Sie Ihren Umsatz, indem Sie Ihren Bildschirm mit potenziellen Kunden teilen. Präsentieren Sie Ihre Produkte oder Dienstleistungen in Echtzeit und bieten Sie ein ansprechendes und interaktives Verkaufserlebnis.

Die Meinung unserer Benutzer ist uns sehr wichtiglink

Von unseren Benutzern empfohlenlink

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?

    Ein gleichzeitiger Benutzer ist jeder, der eine oder mehrere Sitzungen gleichzeitig von einem beliebigen Gerät aus ausführt. Die Anzahl der erworbenen Lizenzen bestimmt die maximale Anzahl gleichzeitiger Benutzer innerhalb Ihrer Organisation.

    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:

    • Jahresabonnements: Standard-, Premium- und Self-Hosted-Tarife mit jährlicher Abrechnung
    • Maßgeschneiderte Unternehmenspläne: Individuelle Lösungen für größere Bereitstellungen

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

    Alle Tarife beinhalten eine 15-tägige kostenlose Testphase ohne Angabe einer Kreditkarte, sodass Sie ausreichend Zeit haben, die Plattform umfassend zu testen. Im Gegensatz zur eingeschränkten Testversion von TeamViewer, die keinen Support bietet, können Sie während unserer Testphase unser Support-Team kontaktieren, das Ihnen sofort weiterhilft.

  • What security certifications does ISL Online have?

    SL Online maintains an extensive certification and compliance adherence portfolio.

    Zertifikate:

    • ISO/IEC 27001 (Information Security Management),
    • ISO 14001:2015 (Environmental Management),
    • ENS Hochgradige Sicherheitsmaßnahmen,
    • ACN: Italienisches nationales Sicherheitskonzept

    Einhaltung von Compliance-Vorgaben:

    • DORA (Digital Operational Resilience),
    • SOC 2 (Service Organizations),
    • NIS-2 Directive (Cybersecurity),
    • WCAG 2.0 (Accessibility),
    • GDPR (Data Protection),
    • Cyber Essentials (Großbritannien),
    • 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 für Fernsupport und Fernzugriff
    • Browserbasierter Zugriff für Anwender

    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
    • Erweiterte Anpassungsoptionen
    • Mass deployment
    • Erweiterte Dateiverwaltung mit detaillierten Verlaufsprotokollen
    • 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.

15 Tage kostenlos testen

Entdecken Sie die neue Remote-Desktop-Erfahrung!

Kontaktieren Sie uns Jetzt testen

Vollversion. Keine Kreditkarte erforderlich

Still not convinced?

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

Read TeamViewer vs ISL Online