Yes, both IBackup and Backblaze offer a Free Trial.
IBackup is designed for Large Enterprises, Medium Business and Small Business.
Backblaze is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for IBackup Starts at $9.95/Month whereas for Backblaze Starts at $7/Month.
Some top alternatives to IBackup includes BackupVault Cloud Backup, IDrive Online, Livedrive, NovaBACKUP Cloud, Jungle Disk Encrypted Cloud Backup, ADrive Enterprise, MyPCBackup, ZipCloud and BDRSuite.
Some top alternatives to Backblaze includes Carbonite, BackupVault Cloud Backup, CloudAlly Office 365 backup, IDrive Online, Livedrive, Jungle Disk Encrypted Cloud Backup, Data Deposit Box, CloudAlly G Suite Backup, IBackup and AWS Backup.