Between $49 and $199 per server (one-time). Given that a single hour of downtime costs most businesses over $1,000, the license pays for itself after one successful restore.
The official website offers a 30-day trial of the Enterprise edition. No credit card is required for download. During these 30 days, it is —no database limits, all cloud destinations available. You can back up your entire production environment for one month to test restore reliability. license key sqlbackupandftp full
The free version of SQLBackupAndFTP is genuinely useful. It allows backups but limits the number of databases per server. The unlocks unlimited databases, cloud storage integration, and advanced scheduling. There is no "hidden" free full license key. Between $49 and $199 per server (one-time)