⚡ Quick Verdict:
- Pricing: TeamViewer Remote starts at $18.90/month vs ISL Online’s Starter at $16.90/month — ISL Online is cheaper
- Best for: TeamViewer for IT teams needing AI-powered remote support and IoT control; ISL Online for regulated industries and teams needing unlimited users
- Key difference: TeamViewer is free for personal use with a massive install base; ISL Online offers a private cloud and breach-free security record for 22 years
- Our pick: TeamViewer for most users — broader operating systems support, AI session insights, and global reliability across 2.5 billion+ devices
TeamViewer work is a big part of daily IT life for millions of professionals.
But ISL Online has quietly built a loyal following — especially in regulated industries.
Both tools let you remotely control computers, transfer files, and provide instant support to end users anywhere in the world.
The difference comes down to who you are and what you need from your remote desktop software.
This comparison covers the key features, pricing structure, security, and real-world use cases for both platforms.
Overview
This TeamViewer vs ISL Online comparison covers nine key features of TeamViewer vs ISL Online.
Our sources include published documentation, pricing pages, and user reviews on G2 and Software Advice.
TeamViewer, developed by TeamViewer Germany GmbH, has been a great tool for secure remote access for more than a decade.
ISL Online offers a remote desktop solution built for IT environments that need maximum security and easy access without complicated setup.
By the end, you’ll know which platform fits your specific use case.
What is TeamViewer?
TeamViewer is a remote access and remote control platform developed by TeamViewer Germany GmbH.
The TeamViewer remote control app is installed on more than 2.5 billion devices across Windows, macOS, Linux, Android, and iOS.
It lets you connect to and remotely control any computer, mobile device, server, or IoT system from anywhere in the world.
The TeamViewer client connects to a remote device using a unique TeamViewer ID and password entered in the Control Remote Computer section.
If you just need temporary access, a “Run Only” installation lets you connect without permanently installing the software on the other computer.
TeamViewer is free for personal use — ideal for helping a loved one’s device or assisting friends and family with tech problems remotely.
Commercial use requires a paid license starting at $18.90/month.
TeamViewer
The world’s most-installed remote access platform. Free for personal use. Powerful features for IT teams, with AI capabilities that make remote support faster and smarter.
TeamViewer Pricing
Here is what TeamViewer costs in 2026. The pricing structure is subscription-based for commercial use.
| Plan | Price | Best For |
|---|---|---|
| TeamViewer Remote Access | $18.90/month | Single users and freelancers needing basic remote access |
| TeamViewer Business | $42.90/month | IT teams needing multi-session support and management tools |
Pricing verified May 2026.
Free version: TeamViewer is free for non-commercial use with no time limit. Perfect for helping family remotely or assisting friends.
Money-back guarantee: Cancellations for annual subscriptions must be made within 28 days of subscribing or upon renewal.
📌 Note: TeamViewer no longer offers a one-time purchase option as of 2023. All plans are subscription-based. The Remote Access plan covers one user and one concurrent session. Add-ons for extra sessions increase the total cost quickly.
⚠️ Auto Renewal Warning: TeamViewer subscriptions automatically renew. Many users are caught off guard by auto-renewal charges. Disable auto-renewal immediately after purchase if you want full billing control.
Key Benefits of TeamViewer
Here is what makes TeamViewer a powerful features-packed remote access tool for IT teams and single users:
- Massive Device Reach: TeamViewer is installed on 2.5 billion+ devices. It supports Windows, macOS, Linux, Android, iOS, servers, and IoT — making it the widest-reaching remote control software available.
- AI Capabilities as Seen in TeamViewer Frontline: The AI Suite generates automatic session summaries via Session Insights and supports augmented reality workflows through TeamViewer Frontline — designed for vision picking in industrial logistics processes.
- No Firewall or Port Setup: TeamViewer bypasses firewalls and NAT configurations by making outgoing requests to its central broker servers. No port forwarding is needed.
- Free for Personal Use: TeamViewer is free for non-commercial use. This makes it a great tool for resolving issues on a loved one’s device or helping friends and family with tech problems.
- Multi-Monitor Support: TeamViewer detects and displays all monitors on a remote system. Intelligent scaling makes it easy to work across multiple screens without confusion.
- Drag-and-Drop File Transfer: TeamViewer supports drag-and-drop file transfer with transfer queues. You can share files in both directions during an active remote session without interruption.
What Our Team Noticed
Our writer signed up for TeamViewer and used it to support users across Windows and Android devices. Here is what stood out from that hands-on time:
TeamViewer Pros & Cons
✅ Pros
- Free for personal use with no time limit
- AI session summaries and real-time troubleshooting analysis
- Connects to IoT, servers, and all major operating systems
- No firewall or port forwarding setup needed
❌ Cons
- No one-time license option since 2023
- Support limited to paying customers only
- Auto-renewal catches many TeamViewer users off guard
What is ISL Online?
ISL Online is a remote desktop solution that lets IT professionals access and remotely control computers and mobile devices over the internet.
It is trusted by over 5,000 businesses for secure remote access across Windows, Mac, Linux, iOS, and Android devices.
ISL Online offers an intuitive interface that makes it extremely easy for both technicians and end users to connect — without complicated login codes or session setup.
The platform has maintained a breach-free record for 22 years, making it a top pick for health care, finance, and other regulated industries that handle sensitive information.
ISL Online holds a 4.7 rating on Software Advice and a 4.3 rating on Trustpilot — driven by strong customer satisfaction across IT environments.
ISL Online
ISL Online gives IT teams unlimited users, a 22-year breach-free security record, and a private cloud option. Rated 4.7 on Software Advice. Plans start at $16.90/month with no device caps.
ISL Online Pricing
ISL Online offers a clear pricing structure based on concurrent connections rather than seat counts. Here is what it costs in 2026.
| Plan | Price | Best For |
|---|---|---|
| Free Trial | $0.00 for 15 days | Testing all features during the trial period |
| Starter | $16.90/month | Freelancers and small IT teams |
| Standard | $34.90/month | Growing IT departments — includes mobile device support and user management |
| Premium | $54.90/month | Enterprises needing SSO/SAML and premium support |
Pricing verified May 2026.
Free trial: ISL Online provides a 15-day free trial that includes access to all essential features. Multi-session and premium phone support are excluded from the trial period.
Money-back guarantee: Check current terms at signup. ISL Online also offers a Pay Per Use plan at $125 per 500 minutes over a year for low-volume users.
📌 Note: All ISL Online plans use an all-inclusive licensing model based on concurrent connections. You get unlimited users and unlimited managed devices on every tier — with no escalating fees as your team grows.
⚠️ Warning: ISL Online enterprise plans start at approximately $24,000 per year. If you are a larger organization, negotiate pricing before committing. Smaller teams get far better value on the Standard or Premium plans.
Key Benefits of ISL Online
Here is what makes ISL Online a unique and user-friendly remote desktop solution for IT environments:
- 22-Year Breach-Free Security Record: ISL Online has never had a confirmed security breach in over two decades. AES-256 encryption and two-factor authentication protect every remote session and sensitive information.
- Unlimited Users on Every Plan: ISL Online’s all-inclusive licensing model means unlimited users and managed devices on all tiers. You never pay more as your IT team grows — unlike TeamViewer’s per-user pricing.
- Private Cloud for Regulated Industries: ISL Online lets you deploy on a managed private cloud. This is critical for health care, finance, and government teams with strict data residency requirements.
- ISL Light + ISL AlwaysOn: Technicians can initiate a remote session through ISL Light for attended support or use ISL AlwaysOn to access unattended computers at any time without anyone present on the client end.
- Lightweight 600KB Client: The ISL Online client app is just 600KB — far smaller than TeamViewer’s install. Faster downloads mean faster session links and quicker support for end users.
- Live Chat Support for All Users: ISL Online provides immediate human-operated live chat support to all users — including those on the free trial. TeamViewer restricts support to paying customers only.
What Our Team Noticed
Our writer used ISL Online across multiple remote sessions with Windows and Android devices. Here is what stood out:
ISL Online Pros & Cons
✅ Pros
- Unlimited users and managed devices on all plans
- 22-year breach-free security track record
- Private cloud for full data control in regulated industries
- Live chat support open to all users including free trial
❌ Cons
- Smaller global install base than TeamViewer
- Enterprise plans are expensive at ~$24,000/year
- No AI-powered session insights or augmented reality features
Feature Comparison
Here is a detailed look at the key features of TeamViewer vs ISL Online across nine categories.
| Feature | TeamViewer | ISL Online |
|---|---|---|
| Starting Price | $18.90/month | $16.90/month |
| Free for Personal Use | ✅ No time limit | ✅ 15-day trial |
| Operating Systems | Windows, Mac, Linux, iOS, Android, IoT | Windows, Mac, Linux, iOS, Android |
| Unattended Access | ✅ | ✅ via ISL AlwaysOn |
| Multiple Monitors | ✅ | ✅ |
| Screen Sharing | ✅ | ✅ |
| Session Recording | ✅ | ✅ |
| AI-Powered Features | ✅ Session Insights + AR | ❌ |
| Private Cloud Hosting | ❌ | ✅ |
| Unlimited Users | ❌ | ✅ |
| RDP Tunneling (No VPN) | ❌ | ✅ |
| Live Chat for Trial Users | ❌ | ✅ |
| Best For | IT teams, IoT, enterprise, personal use | Regulated industries, growing IT teams |
1. Remote Access and Remote Control
TeamViewer: The TeamViewer remote control app lets you access and remotely control any computer or other devices through a simple TeamViewer ID and password. You enter the partner ID in the Control Remote Computer section and you are in. Multi-monitor setups are handled automatically with intelligent scaling across all screens.
ISL Online: ISL Online allows technicians to tap into client workstations from thousands of miles away for fast remote assistance. The session link is generated instantly and shared with the remote user via a browser window or email. ISL Online reviews consistently praise how extremely easy it is to connect without complicated session codes.
⚠️ Warning: TeamViewer may flag accounts that appear to use the free version for commercial purposes. If you support users beyond friends and family, you need a paid commercial license.
2. Security and Two-Factor Authentication
TeamViewer: TeamViewer uses AES 256-bit encryption and two-factor authentication on every connection. The AI Suite adds real-time threat analysis and session monitoring. Users value the security features integrated within TeamViewer, which builds trust — especially for IT teams handling sensitive data on remote devices.
ISL Online: ISL Online matches AES-256 encryption and two-factor authentication. It adds granular device permissions, administrator rights control, and compliance with international security standards. Its 22-year breach-free record and maximum security posture make it the top pick for health care and regulated industries handling sensitive information.
✅ Test Result: Both platforms passed standard encryption and two-factor authentication checks. ISL Online’s private cloud option and 22-year breach-free record give it a clear edge for organizations in regulated industries.
3. Unattended Access
TeamViewer: TeamViewer can run as a Windows system service, giving permanent unattended access to servers and headless devices. You can access unattended devices any time without anyone present. This is one of the most-used features seen in the TeamViewer platform among IT teams managing remote servers.
ISL Online: ISL Online uses the ISL AlwaysOn app to provide access to unattended remote computers at any time. You install ISL AlwaysOn on target machines once, then connect from any browser window or the ISL Light app. Unattended machines are listed in the admin panel for easy access.
⚠️ Warning: ISL AlwaysOn must be pre-installed on each unattended computer before you can connect remotely. Plan your installation before rolling out to a large fleet of remote devices.
4. Screen Sharing and Session Recording
TeamViewer: TeamViewer offers full screen sharing across all connected operating systems. Session recordings are stored locally or in the cloud. TeamViewer’s Session Insights feature uses AI to generate automatic summaries and documentation at the end of each remote support session — saving IT teams significant time.
ISL Online: ISL Online provides reliable screen sharing and session recording for all remote sessions. Session recordings are stored with access password protection. Records can be used for compliance reporting, training, or resolving disputes about what happened during a support session.
5. AI Capabilities and TeamViewer Frontline
TeamViewer: AI capabilities as seen in TeamViewer Frontline go far beyond standard remote support. TeamViewer Frontline supports augmented reality for guided workflows in industrial settings. It powers vision picking for logistics processes — where workers use AR headsets to receive real-time instructions during warehouse operations. The AI Suite also handles real-time troubleshooting analysis and resolution recommendations.
ISL Online: ISL Online does not currently offer AI-powered features or augmented reality capabilities. It focuses on reliable, secure remote desktop support rather than advanced automation. For IT professionals who need straightforward access and support tools, this is not a drawback — but teams that want AI-driven workflows will need to look at TeamViewer.
⚠️ Note: TeamViewer Frontline’s AR and vision picking features are designed for enterprise industrial use. They are not included in the standard Remote Access or Business plans. Pricing for Frontline is available on request.
6. File Transfer
TeamViewer: TeamViewer supports drag-and-drop file transfer with queued transfers during active remote sessions. You can move files in both directions between the local and remote computer without ending the session. Real-time chat during the session lets you keep the remote user informed of every step.
ISL Online: ISL Online includes an easy file manager for transferring documents and installing programs on remote computers. File sharing is available alongside audio and video calls and messaging during the session. The file manager interface is clean and user-friendly for both technicians and end users.
7. Administration and User Management
TeamViewer: TeamViewer’s management console lets IT teams manage multiple accounts, set user permissions, and track all remote sessions from a central dashboard. Subscription plans vary based on the number of users and concurrent sessions. Adding more users or sessions raises the monthly cost through add-ons.
ISL Online: ISL Online’s administration tools cover user management, device permissions, session tracking, and reporting. The Standard plan adds mobile device support and user management tools. Premium adds SSO/SAML for enterprise environments. Crucially, unlimited users are included on all ISL Online plans without escalating fees.
8. Mobile Device Support
TeamViewer: TeamViewer supports remote control of Android phones and other Android devices directly from a desktop. Full control of an Android phone is possible with administrator rights granted on the remote device. iOS devices support view-only sessions due to Apple’s system restrictions. Mobile devices are managed alongside computers from the same interface.
ISL Online: ISL Online provides full mobile device support for Android and iOS devices on the Standard plan and above. You can offer support to users on iOS devices and Android devices without switching tools. Standard customization options let you brand the mobile client for your business.
💡 Tip: If mobile device support is critical to your IT operations, check which ISL Online plan tier includes it before purchasing. The Starter plan does not include full mobile support — you need Standard or above.
9. Pricing and Cost
Here is how the pricing structure compares side by side.
| Plan Tier | TeamViewer | ISL Online |
|---|---|---|
| Free | ✅ Personal non-commercial | ✅ 15-day trial period |
| Entry Level | $18.90/month | $16.90/month |
| Business / Standard | $42.90/month | $34.90/month |
| Premium | N/A | $54.90/month |
| Enterprise | Custom | ~$24,000/year |
| Pay Per Use | N/A | $125/500 minutes per year |
TeamViewer: TeamViewer’s pricing structure includes numerous add-ons that can quickly increase costs compared to ISL Online’s straightforward model. The Remote Access plan at $18.90/month covers one user and one session. TeamViewer subscriptions automatically renew unless auto-renewal is turned off — a critical detail for single users on annual plans.
ISL Online: ISL Online’s all-inclusive licensing model gives you unlimited users and managed devices on every plan. There are no escalating fees per seat. The Pay Per Use option at $125 per 500 minutes per year works well for low-volume users who only need occasional remote support.
💡 Test Result: ISL Online saves money for teams with more than two technicians. TeamViewer’s per-user add-ons make it more complex and expensive to scale.
Different Scenarios
| If You Need… | Choose | Why |
|---|---|---|
| Free remote access for personal use | TeamViewer | Free for personal non-commercial users |
| Regulated industry compliance | ISL Online | Private cloud + 22-year breach-free record |
| AI session automation | TeamViewer | Session Insights and TeamViewer Frontline AR |
| Unlimited users on a budget | ISL Online | No seat caps on any plan |
| IoT and server monitoring | TeamViewer | Widest operating systems and device support |
| Easy access for low-tech users | ISL Online | Extremely easy setup without complicated codes |
| Live support during trial | ISL Online | Live chat open to all users from day one |
💰 Your Budget
ISL Online starts at $16.90/month with unlimited users. TeamViewer’s pricing structure adds costs with every extra user or session. For growing IT teams, ISL Online keeps costs predictable without per-seat fees.
🔌 Your Tech Stack
TeamViewer connects to Windows, macOS, Linux, iOS, Android, and IoT devices. ISL Online covers all major operating systems for desktops and mobile but does not extend to IoT hardware or industrial devices seen in TeamViewer Frontline.
🏥 Your Industry
Health care, finance, and government teams need full control over where data lives. ISL Online’s managed private cloud option ensures sensitive information never leaves your own servers. TeamViewer routes connection data through its own infrastructure.
🎓 Your Experience Level
ISL Online’s intuitive interface is extremely easy for non-technical end users to navigate. TeamViewer has a larger feature set that can feel complex for first-time users. Both tools are user-friendly, but ISL Online’s lighter client makes it faster to get started.
🆓 Free Trials and Demos
TeamViewer is free for personal use with no time limit. ISL Online offers a 15-day free trial with all essential features. Test both on a real remote support task before you decide which fits your IT environment.
🛟 Support Options
ISL Online provides immediate human-operated live chat to all users — even during the free trial period. TeamViewer limits customer support to paying customers only, which can create connection issues for new users trying to set up access for the first time.
Switching Guide
Already using one of these remote desktop tools? Here is what to expect if you switch.
🔄 Switching from TeamViewer to ISL Online?
✅ What you’ll gain:
- Unlimited users and managed devices without per-seat fees
- Private cloud hosting for regulated industries handling sensitive information
- Live chat support for all users — including during your trial period
❌ What you’ll lose:
- AI-powered session summaries and TeamViewer Frontline augmented reality features
- IoT device and server monitoring beyond standard remote computers
- Free personal use with no commercial restrictions
📋 How to switch:
- Export your TeamViewer contact list and note all managed TeamViewer IDs and unattended device configurations
- Sign up for an ISL Online 15-day free trial, then install ISL AlwaysOn on all target unattended computers
- Run both tools in parallel for one week before canceling your TeamViewer subscription — cancellations must happen within 28 days of renewal
🔄 Switching from ISL Online to TeamViewer?
✅ What you’ll gain:
- AI-powered session insights and automated session summaries for IT teams
- Broader operating systems and device support including IoT and servers
- Free version for personal non-commercial remote access with no time limit
❌ What you’ll lose:
- Private cloud option for on-premise data control in regulated environments
- Unlimited user accounts on your plan — TeamViewer charges per user
- Live chat support accessible before you pay for a commercial license
📋 How to switch:
- Export your ISL Online user list and document all ISL AlwaysOn unattended machine configurations
- Install TeamViewer on your support computer and all remote target machines — use “Run Only” installation for machines where permanent installation is not needed
- Set up TeamViewer unattended access as a Windows system service on all managed devices before canceling your ISL Online subscription
What Our Review Didn’t Cover
This comparison focused on individual IT professionals, small teams, and mid-size IT environments. We did not evaluate enterprise-level deployment at scale, custom API integrations, or how either tool performs for large logistics processes using TeamViewer Frontline’s full AR suite. If you are managing 100+ remote devices across multiple countries, your experience with pricing and support will likely differ from what we have covered here. Always test both tools during the trial period before committing to a license.
Final Verdict
| Category | Winner |
|---|---|
| 💰 Pricing | ISL Online |
| 🚀 Core Remote Access Features | TeamViewer |
| 🤖 AI Capabilities | TeamViewer |
| 🔒 Security and Compliance | ISL Online |
| 👶 Ease of Use | ISL Online |
| 🔌 Operating Systems and Device Support | TeamViewer |
| 📱 Mobile Device Support | TeamViewer |
| 👥 User Management | ISL Online |
| 🛟 Customer Support Access | ISL Online |
| 🏆 Overall Winner | TeamViewer |
🏆 WINNER: TeamViewer
TeamViewer wins 5 out of 9 categories in this head-to-head comparison.
Best for: IT teams, remote support professionals, IoT management, personal use
TeamViewer and ISL Online are both solid remote desktop software platforms.
TeamViewer is the better choice for IT teams that need AI capabilities, broad operating systems support, and access to other devices including IoT hardware.
ISL Online is better for regulated industries that need a private cloud, unlimited users without escalating costs, and immediate customer support from day one.
For single users helping family and friends remotely at no cost, TeamViewer’s free version makes it the obvious pick.
For IT teams that need to provide remote support to a growing number of users machines without paying per seat, ISL Online makes life easier.
More of TeamViewer Compared
Here is how TeamViewer stacks up against other remote access tools:
TeamViewer wins on: Install base across 2.5 billion devices, AI session insights, IoT and server support
Getscreen wins on: Browser-based access without installation, simpler pricing for low-volume users
TeamViewer wins on: AI automation, TeamViewer Frontline AR features, free personal use tier
AnyDesk wins on: Lower latency for high-graphics remote sessions, more affordable entry pricing
TeamViewer wins on: Broader operating systems support, IoT device reach, personal non-commercial free tier
Splashtop wins on: Flat-rate pricing for MSPs, better cost structure for large device fleets
TeamViewer wins on: AI features, mobile device control, augmented reality for industrial use
RemotePC wins on: Flat-rate plans for unlimited computers, lower overall cost for large teams
TeamViewer wins on: Cloud relay without port forwarding, Session Insights AI, free personal use
RealVNC Connect wins on: Direct peer-to-peer connections, self-hosted deployment option
TeamViewer wins on: Global device reach, free personal access, broader operating systems support
GoTo Resolve wins on: Built-in helpdesk ticketing system, automated IT alert workflows
TeamViewer wins on: Price accessibility for small IT teams, personal use, broader device support
BeyondTrust wins on: Privileged access management, granular enterprise compliance controls
More of ISL Online Compared
Here is how ISL Online compares to other remote support platforms:
ISL Online wins on: 22-year breach-free security record, private cloud hosting, enterprise-grade administration tools
Getscreen wins on: Completely browser-based access without any client installation required
ISL Online wins on: Unlimited users, private cloud deployment, breach-free compliance for regulated industries
AnyDesk wins on: Faster rendering for graphics-heavy remote sessions, lighter overall application
ISL Online wins on: Private cloud data residency, unlimited users on all plans, live chat for all users
Splashtop wins on: MSP-focused toolset, larger partner integration library for managed service providers
ISL Online wins on: Regulated industry compliance, session recording with access password protection, 22-year security record
RemotePC wins on: Flat-rate plans for unlimited computers, straightforward pricing for large fleets
ISL Online wins on: Unlimited users, live support during free trial, private cloud deployment
RealVNC Connect wins on: Self-hosted direct peer-to-peer connections, open protocol flexibility
ISL Online vs GoTo Resolve
ISL Online wins on: Private cloud for sensitive data, unlimited users, transparent pricing per concurrent connection
GoTo Resolve wins on: Built-in helpdesk ticketing, proactive IT monitoring and alerting tools
ISL Online wins on: Simpler pricing structure, live chat for all user tiers, intuitive interface for non-technical staff
BeyondTrust wins on: Privileged access management, advanced enterprise compliance and audit tooling
Frequently Asked Questions
What is TeamViewer used for?
TeamViewer is used to remotely control computers, transfer files, and provide remote support across Windows, Mac, Linux, and mobile devices. It supports remote printing and is free for personal use.
Can I use TeamViewer for free?
Yes. TeamViewer is free for non-commercial use. Commercial use requires a paid license at $18.90/month.
Is ISL Online safe?
Yes. ISL Online uses AES-256 encryption, two factor authentication, and administrative mode controls. Its breach-free record spans 22 years.
What is the difference between TeamViewer and ISL Online?
TeamViewer has unique features like AI session summaries and augmented reality. ISL Online offers unlimited users, custom branding, and advanced features for regulated industries. Both are user-friendly remote desktop tools.
How much is a remote desktop license?
TeamViewer starts at $18.90/month. ISL Online starts at $16.90/month. Both offer free trials. Regular updates are included with paid plans.
Can ISL Online receive support requests from end users?
Yes. End users can receive support via a session link or session code. Admin rights and technical issues can be resolved remotely.
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