Remote Support Tools Compared: TeamViewer, AnyDesk, and RustDesk

What to Look for in a Remote Support Tool

Running IT support for businesses in the UK means dealing with a wide range of setups. One day it might be a small office on a fixed line, the next a remote worker on a domestic broadband connection. The remote support tool you rely on needs to handle both reliably without adding friction to the session.

Three names come up consistently when IT professionals compare remote access software: TeamViewer, AnyDesk, and RustDesk. Each has a distinct approach to licensing, security, and infrastructure. This article breaks down how they compare across the areas that matter most for practical IT support work.

Core Requirements for Professional IT Remote Access

Before comparing the tools, it helps to be clear about what professional support actually requires. A tool that works fine for occasional personal use may fall short in a managed services context.

• Unattended access: The ability to connect to a machine without the end user being present. This matters for server management, after-hours support, and any situation where you cannot rely on someone being available to click accept.
• Cross-platform support: Windows, macOS, and Linux at minimum. Mobile support for occasional tablet or phone access is useful.
• Smooth performance: Remote support work requires responsive mouse and keyboard input. Anything below usable frame rates makes even simple tasks frustrating.
• File transfer: The ability to push installers, pull logs, and move files between local and remote machines quickly.
• Session management: Reconnecting to previous sessions, session history, and multi-monitor awareness all improve workflow efficiency.
• Access controls: Configurable permissions, two-factor authentication, and access grouping help manage security across multiple client environments.
• Compliance considerations: Depending on your client base, data residency options and compliance certifications may influence which tools are acceptable.

TeamViewer Overview

TeamViewer is the established market leader in enterprise remote support. It positions itself as a complete connectivity platform covering remote access, remote support, IoT connectivity, and collaboration features. The installed base is substantial, which has practical advantages when supporting clients who may already have the host software in place.

The licensing model is subscription-based, priced per user with volume discounts available through channel partners. For smaller businesses, the Professional plan sits at a higher price point than comparable options. Enterprise deployments use a quote-driven pricing model.

Technical Performance

TeamViewer uses a proprietary protocol with adaptive compression and maintains its own global relay network. For most internet connections, the experience is smooth. On a reasonably stable connection with latency under 100ms, frame rates typically hold between 30 and 60fps for GUI-intensive work.

The relay architecture means connections remain functional even when direct peer-to-peer links fail due to NAT configurations or restrictive firewalls. This reliability across varied network conditions is one of TeamViewer's strongest points.

Security Features

TeamViewer offers end-to-end AES 256-bit encryption as an optional feature for environments where data sovereignty is a concern. Two-factor authentication supports both TOTP and push notification methods. Access control lists allow granular permission levels, and trusted device management lets you whitelist specific partner devices.

Session logging and recording are available with appropriate consent handling. Conditional access rules can restrict connections by IP range or time window. TeamViewer maintains ISO 27001, SOC 2, and GDPR compliance certifications, which matters for clients with formal vendor assessment processes.

Deployment and Management

TeamViewer supports both agent-installed and host-configured unattended access modes. The Management Console provides a unified view of devices and sessions. For managed IT environments, add-ons covering monitoring, patch management, and RMM functionality are available, though these push the solution into full RMM territory rather than pure remote access.

TeamViewer Strengths and Weaknesses

The most significant advantage is the maturity of the global relay network. Connections work reliably from almost any network condition. Platform support is the broadest available, covering not just desktop operating systems but also Raspberry Pi and Windows IoT devices.

The large installed base means many end users already have TeamViewer installed, reducing friction when initiating sessions. Enterprise integrations with SSO and SIEM systems are well-developed, and audit logging supports formal compliance requirements.

The main criticism is cost. For organisations managing many devices or users, the per-user pricing becomes significant. Occasional false positives from antivirus software on the TeamViewer host process can cause support requests in their own right. The feature set can also be overwhelming for smaller teams who only need straightforward remote access.

AnyDesk Overview

AnyDesk positions itself as the performance-optimised alternative, built around its proprietary DeskRT codec designed specifically for remote display rendering. It has gained traction quickly, particularly in European markets, and offers a notably lower entry price than TeamViewer.

The Business plan starts at a more accessible price point with further discounts for annual billing and volume purchases. AnyDesk also offers an On-Premises option, which is valuable for organisations with strict data residency requirements.

Technical Performance

The DeskRT codec performs well, particularly on lower bandwidth connections. In comparative testing, AnyDesk often maintains higher frame rates than TeamViewer on connections below 5Mbps. Direct peer-to-peer connections are excellent. Relay performance depends on AnyDesk's infrastructure, which is less globally distributed than TeamViewer's network.

Security Features

AnyDesk uses TLS 1.2/1.3 encryption for all connections, with RSA 2048 asymmetric key exchange and AES 256 symmetric encryption. Two-factor authentication is available via TOTP. Access management supports granular permission profiles, and allowlist and blocklist controls apply to contacts and groups.

Session logging and keyboard input logging are available. Compliance certifications include GDPR, ISO 9001, and BSI IT Baseline Protection. The On-Premises option lets organisations run their own license server, keeping all connection data within their infrastructure.

Deployment and Management

AnyDesk offers both portable (no-install) and installed agent modes. The MyAnyDesk console provides device management, access group configuration, and session logging. MSI and GPO deployment options exist for larger rollouts, though the deployment tooling is less mature than TeamViewer's.

The portable mode is particularly useful for one-off support situations where installing software on the client machine is not desirable or practical.

AnyDesk Strengths and Weaknesses

Performance on constrained connections is genuinely impressive. The On-Premises option addresses data sovereignty concerns that rule out cloud-based relay infrastructure. The price point is significantly lower than TeamViewer for comparable features. The lightweight binary installs quickly even on slow connections.

The relay infrastructure is less mature than TeamViewer's. Connections from challenging network environments may fail to establish direct or relayed connections more often. The ecosystem of third-party integrations with RMM and PSA tools is less developed. Enterprise features outside core remote access are less mature.

RustDesk Overview

RustDesk is an open-source remote desktop application written in Rust. Unlike TeamViewer and AnyDesk, which are proprietary SaaS offerings with optional self-hosted components, RustDesk's core is fully open-source. This gives organisations complete visibility into the codebase and control over the entire infrastructure stack.

Three deployment options are available. The public relay server is free but has usage limits. Self-hosted relay servers are fully owned and operated with no usage limits and complete data sovereignty. An enterprise tier offers managed self-hosted deployment with additional features and support.

Technical Performance

RustDesk uses a relay architecture similar to typical WebRTC applications. Performance is good for direct peer-to-peer connections where network conditions allow. Relay-assisted connections, which are common in corporate environments with restrictive NAT or proxy configurations, can exhibit higher latency than TeamViewer or AnyDesk due to less optimised relay infrastructure.

Security Features

Connections are end-to-end encrypted using AES-256, comparable to commercial tools. The self-hosted option eliminates third-party data handling entirely. There is no mandatory cloud dependency, unlike TeamViewer and AnyDesk which require cloud account management for full functionality.

The open-source nature means the codebase can be audited by anyone, which matters for organisations with strict security review requirements. The HBBS (Rendezvous/Relay server) can be deployed on-premises for complete data sovereignty.

Deployment and Management

Self-hosted deployment requires a Linux server for the relay server component and a lightweight client installed on each managed device. Configuration is more involved than TeamViewer or AnyDesk, requiring comfort with Linux server administration. The management portal for self-hosted deployments is functional but less polished than commercial equivalents.

For organisations with DevOps capability, the ability to fork and modify the client code is a genuine advantage not available with proprietary tools.

RustDesk Strengths and Weaknesses

The fully open-source nature means no black box, full auditability, and no vendor lock-in. True self-hosted capability provides complete data sovereignty without any data passing through third-party infrastructure. There is no per-user licensing cost for self-hosted deployments. An active development community contributes rapid feature additions.

The user experience and management console are less polished than commercial alternatives. Relay infrastructure for scenarios where self-hosted relay is not available is less mature. Technical administration requirements are higher. Enterprise support SLAs are not available at the free self-hosted tier. RMM and PSA integrations are minimal.

How the Three Tools Compare Side by Side

Choosing the Right Tool for Your Practice

The right choice depends less on which tool has the most impressive feature list and more on which aligns with your specific operational constraints. Budget, typical network environments, compliance requirements, and the technical capability of your team all shape the decision.

Choose TeamViewer when reliability across all network conditions is paramount, deep enterprise integrations with SSO or SIEM systems are required, and the budget accommodates the premium pricing. The large existing installed base also reduces friction when supporting clients who already have TeamViewer installed.

Choose AnyDesk when performance on low-bandwidth connections is critical and a more accessible price point is preferred. The On-Premises option suits EU data residency requirements without the cost of TeamViewer's enterprise tier. It offers commercial-grade features at a more competitive price.

Choose RustDesk when data sovereignty requirements prevent use of any third-party relay infrastructure, your team has Linux server administration capability, and the per-user cost of commercial tools is prohibitive for a large managed device count. The open-source nature also suits organisations with formal source code audit requirements.

Operational Considerations Beyond Features

Beyond the feature comparison, think about how each tool fits into your broader operational workflow. If your team handles remote work IT setup for clients, the ability to quickly deploy agents across multiple machines matters. For server maintenance where you need server monitoring tools alongside remote access, the integration story becomes relevant.

Documentation is another practical factor. When supporting multiple clients, having a clear record of which remote access tool is deployed where, along with access credentials and permission configurations, keeps operations manageable. TeamViewer and AnyDesk both offer management consoles that help with this. RustDesk's self-hosted approach puts that responsibility entirely on your team.

Making the Decision

All three tools are capable of delivering professional-grade remote support. The real question is which trade-offs make sense for your practice and client base.

If you are managing a diverse client environment with mixed network conditions and need the most reliable connections possible, TeamViewer remains the safest choice despite the higher cost. If performance per pound matters and your clients do not have strict compliance requirements driving you toward particular certifications, AnyDesk offers strong value.

If data sovereignty is non-negotiable and your team has the technical capability to run your own relay infrastructure, RustDesk removes the dependency on third-party relay services entirely. The open-source model also suits organisations with internal audit requirements or a preference for avoiding vendor lock-in.

If you are evaluating which tool fits your current setup, take stock of your most challenging typical support scenario first. The tool that handles your worst-case network condition reliably is often the right choice, even if other scenarios work fine across all three options.