Arq Backup vs Duplicacy
Arq Backup
arqbackup.com
Duplicacy
duplicacy.comSide by side
| Figure | Arq Backup | Duplicacy |
|---|---|---|
| Price from | $5.83/mo | $0.17/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 12 |
| Spec score · NAS Backup Software | 7.6 (#28) | 9.2 (#3) |
| Spec score · Backup software | 7.1 (#126) | 9.0 (#15) |
| Backup scope | file | file |
| Computer backup | Yes | Yes |
| Free plan | No | Yes |
| Mobile backup | No | No |
| Supported platforms | macOS,Windows | windows,macos,linux |
| Restore modes | file | file |
Plans
Arq Backup
- Arq 7$59.99 a month
- Arq 7$59.99, paid once
- Arq Premium$6.99 a month
- Arq Premium$69.99 a year
Duplicacy
- Personal License — first year$20 a year
- Personal License — subsequent years$5 a year
- Personal License — additional computer, first year$10 a year
- Personal License — additional computer, subsequent years$2 a year
- Commercial License$50 a year
- CLI License$50 a year
- CLI personal useFree
- Personal GUI license$20 a year
- Personal GUI License$20 a year
- CLI license$50 a year
In their own words
Arq Backup
Arq Backup has no write-up on Specifiction yet; its figures are above.
Duplicacy
Duplicacy is a cross-platform tool for backing up files to cloud storage, local disks, or SFTP servers, including computers and NAS boxes. It supports Windows, macOS, and Linux. Client-side encryption is optional: users set a password when initializing storage to encrypt it, while leaving the password empty means storage is not encrypted. Its lock-free deduplication design uses a two-step fossil collection process to remove chunks that are no longer referenced, without a centralized chunk database. The Web Edition can back up, restore, check, copy, and prune data, with scheduling and email notifications; its dashboard displays storage and backup status. The CLI can run manually or from scripts, and its source code is available on GitHub. CLI personal backups on a home computer and CLI restore, check, copy, and prune operations do not require a license. The Web Edition downloads a fully functional 30-day trial license automatically when used for backups without a license. Paid licenses vary by use and computer count; the listed personal license costs $20 a year for the first year and $5 a year thereafter for one home computer.