Unit Manager is designed for companies that rent self storage buildings and storage space to both private individuals and companies. It handles all sizes of storage units and also includes spaces for cycles, autos, boats, motor homes, trailers, etc. Print invoices and receipts for a professional appearance for your business.Unit Manager is designed for companies that rent storage buildings and storage space to both private individuals and companies. Unlimited capacity for all account types means that this program will server your business for many years to come.