The company's Daylight business management and Billings time billing and invoicing programs run on Mac OS X and iPhone.
"Apple business users have been a key market for us since day one. The Daylite and Billings applications fit perfectly into our portfolio for Mac SMB users," said Simms International MD Danny Moore.
"Daylite and Billings are exceptionally good products and are proven in the Australian market. Marketcircle provides excellent training and support programs for resellers to generate successful and profitable expansion of these products into this market," he added.
Marketcircle CEO Alykhan Jetha said: "After looking at various options we found that Simms was the best possible partner, as they are strongly positioned in the Mac small business market. We are thrilled with the relationship we have forged and are confident in their Mac in Business strategy."