Backblaze Personal is the de facto consumer cloud backup. $9/month, unlimited storage, set it up once and forget it. It's been a Wirecutter pick for years and for plenty of users it's exactly the right tool.
BackupKit takes a fundamentally different approach: you bring your own storage. Use Google Drive, Dropbox, an FTP server, a NAS, or all of them at once — with Amazon S3, Google Cloud and Azure coming soon. BackupKit doesn't host your data; it just moves it to wherever you already have storage.
These are two different products for two different mental models. Here's how to tell which one is right for you.