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ISL Online vs Splashtop: catalog facts
ISL Online	Splashtop
Paid Paid licences with a free trial.	Paid Paid subscriptions with a free trial for each product.
Windows, macOS, Linux, Android, iOS	Windows, macOS
Unlimited unattended computers End-to-end encrypted sessions	Products for individuals as well as help desks and MSPs Attended and unattended remote support
No free plan beyond the trial Aimed at businesses rather than home users	No free plan beyond the trial Proprietary software
Downloadable app, Hosted service	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.