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O&O DiskImage vs AOMEI Backupper: catalog facts
O&O DiskImage	AOMEI Backupper
Paid Commercial software sold by O&O Software, with a separate Enterprise edition for…	Freemium The Standard edition is free. Professional and higher editions are paid.
Windows	Windows
Full system images as well as file and folder backups Aimed at recovery after ransomware, disk failure or a crash	System, disk, partition and file backup with a bootable rescue disc Free edition includes scheduled incremental and differential jobs
Windows only Paid, closed-source software	Real-time sync, event triggers and dissimilar-hardware restore are paid Windows only, closed source
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is 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 22, 2026

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