Personal use, non-profit organizations, Universities and High Schools may use iBackup free of charge.
If you donate, you get a key which supress the donation window when updating.
Business Lisenses (Price per License in USD):
up to 5: $25.00
6-25: $20.00
26-50: $15.00
more than 50: $10.00
For paying use PayPal below, received key is valid for as many iBackup installations as paid for.