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