The short answer
The big three are all capable, and all of them keep something behind a payment: All-in-One WP Migration charges to lift the upload size limit and for cloud storage, UpdraftPlus keeps one-click migration and incremental backups in Premium, and Duplicator Lite leaves scheduled backups and cloud storage to Pro.
SitesSaver is free with nothing held back: no file size cap, restore included, domain migration that repairs serialized data, several backup schedules at once, Google Drive, and incremental backups. The trade-off is that it is young, has one remote destination, and is not on the wordpress.org directory.
Side by side
| SitesSaver | All-in-One WP Migration | UpdraftPlus | Duplicator | |
|---|---|---|---|---|
| Price of what is listed here | Free, all of it | Free core, paid extensions | Free, Premium from yearly plans | Free Lite, Pro from yearly plans |
| File size limit on the free version | None | Unlimited size is a paid extension | Not stated on its plugin page | None stated (“backups of any size”) |
| Restore in the free version | Yes, drag the ZIP in | Yes, drag-and-drop importer | Yes | Yes |
| Move to a new domain, free | Yes, including serialized data | Yes, with find and replace | Manual; one-click migration is Premium | Yes, migration wizard |
| Scheduled backups, free | Yes, several frequencies at once | Not stated on its plugin page | Yes, 2 hours to monthly | Pro only |
| Google Drive, free | Yes | Paid extension | Yes | Pro only (cloud storage) |
| Incremental backups, free | Yes, optional | Not stated on its plugin page | Premium | Not stated on its plugin page |
| Other remote destinations | Google Drive only, for now | Paid extensions | Dropbox, S3, FTP and more | Pro |
| Listed on wordpress.org | No, installed by upload | Yes | Yes | Yes |
Sources: the wordpress.org pages for All-in-One WP Migration, UpdraftPlus and Duplicator, plus the UpdraftPlus and Duplicator pricing pages. Vendors change their tiers; check those pages before you decide.
When another plugin is the better choice
- You need to send backups to Dropbox, Amazon S3, FTP or another destination today. SitesSaver only offloads to Google Drive for now.
- You want a plugin with a long public track record and a support team. The other three have been around for years; SitesSaver is maintained by one developer at fidodesign.net.
- Your site policy only allows plugins from the wordpress.org directory.
Switching to SitesSaver
There is nothing to convert. Install SitesSaver, make a fresh backup from the Export screen, and confirm it on the Backups page. A SitesSaver ZIP restores onto the same site or onto a fresh WordPress install, and a move to a new domain is covered in the migration docs. Keep your old plugin's last backup until the first SitesSaver restore has been tested.
Download SitesSaver 1.4.1 (290 KB), then upload it under Plugins › Add New › Upload Plugin.