AppBreakup
Submit an app

ISL Online alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave ISL Online: no permanent free plan, and less familiar brand for end users. We ranked 5 alternatives by how directly each one replaces ISL Online, then by reviews, real visits and how recently each app's facts were checked against its own website. BeyondTrust Remote Support currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1RustDesk logoRustDeskOpen sourceYesWindows, macOS, Linux +34 of 455.3
  1. RustDesk logo

    1. RustDeskTop pick

    Best for: Admins and privacy-minded users who want TeamViewer-style access on their own server

    Open sourceSelf-hostableWindows, macOS, Linux, iOS, Android, Self-hosted

    55.3

    score / 100

    Why switch from ISL Online

    Free open-source option if self-hosting is the main requirement.

    Pros

    • Free, open-source client and server
    • Traffic can stay entirely on your own relay
    • Familiar ID-and-password workflow
    • Affordable Pro server for teams

    Cons

    • Self-hosting the server takes some setup and upkeep
    • Admin console and user management need the paid Pro server
    • No vendor-hosted SaaS option
    Visit RustDesk Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is RustDesk a good ISL Online alternative?

    Verified facts

    4 of 4 verified
    License
    AGPL-3.0
    Checked Oct 25, 2026github.com(opens source in a new tab)
    Free self-hosting
    $0/month
    Checked Oct 25, 2026rustdesk.com(opens source in a new tab)
    Individual Pro server
    $11.88/month, billed annually
    Checked Oct 25, 2026rustdesk.com(opens source in a new tab)
    Hosted service
    No, self-hosted only
    Checked Oct 25, 2026rustdesk.com(opens source in a new tab)

The best ISL Online alternative for…

The highest-ranked app in this list for each need.

BeyondTrust Remote Support logo

Best ISL Online alternative for most people

BeyondTrust Remote Support

Stronger enterprise auditing and privileged access controls.

RustDesk logo

Best ISL Online alternative for a free option

RustDesk

Free open-source option if self-hosting is the main requirement.

TeamViewer logo

Best ISL Online alternative for a free plan you can upgrade

TeamViewer

The tool most end users already recognise.

RustDesk logo

Best ISL Online alternative for open source

RustDesk

Free open-source option if self-hosting is the main requirement.

ConnectWise ScreenConnect logo

Best ISL Online alternative for self-hosting

ConnectWise ScreenConnect

Also self-hostable and per-concurrent-technician, with a large MSP user base.

Zoho Assist logo

Best ISL Online alternative for Mac

Zoho Assist

Cheaper cloud support with a free plan to start on.

BeyondTrust Remote Support logo

Best ISL Online alternative for Windows

BeyondTrust Remote Support

Stronger enterprise auditing and privileged access controls.

BeyondTrust Remote Support logo

Best ISL Online alternative for Linux

BeyondTrust Remote Support

Stronger enterprise auditing and privileged access controls.

BeyondTrust Remote Support logo

Best ISL Online alternative for iPhone and Android

BeyondTrust Remote Support

Stronger enterprise auditing and privileged access controls.

ConnectWise ScreenConnect logo

Best ISL Online alternative for working in the browser

ConnectWise ScreenConnect

Also self-hostable and per-concurrent-technician, with a large MSP user base.

ISL Online alternatives: common questions

What is the best alternative to ISL Online?

BeyondTrust Remote Support ranks first right now. Stronger enterprise auditing and privileged access controls. ConnectWise ScreenConnect and TeamViewer follow it in our ranking.

Is there a free alternative to ISL Online?

Yes. TeamViewer (free plan + paid), Zoho Assist (free plan + paid) and RustDesk (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to ISL Online?

Yes: RustDesk. RustDesk can also be self-hosted.

Which ISL Online alternatives work on Linux?

BeyondTrust Remote Support, ConnectWise ScreenConnect, TeamViewer, Zoho Assist and RustDesk run on Linux.

Why do people switch from ISL Online?

The complaints we hear most: no permanent free plan; less familiar brand for end users; several separate apps to learn.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces ISL Online, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.