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Arq vs IDrive: catalog facts
Arq	IDrive
Paid Paid software with a 30-day free trial.	Freemium Paid plans from $99.50 per year with a heavily discounted first year; a limited free tier…
Windows, macOS	Windows, macOS, Linux, Android, iOS
Back up to your own cloud storage or local disk End-to-end encryption	One account covers many computers and mobile devices Snapshot history for restoring earlier versions
No Linux version Cloud storage is billed separately by your provider	Advertised first-year prices rise on renewal Storage is capped by plan rather than unlimited
Downloadable app	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
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.