This concept was a precursor of the tabbed sheets included in Quattro Pro and later spreadsheets.
Version 3.0 was launched in August 1987 and introduced multi-user support on PC-based local area networks, with a price of $795 for a LAN licence.
Contemporary reviews of version 3.0 praised Boeing Calc's flexibility and ability to work with files of up to 32mb in size, but criticised its steep system requirements, slow speed, and reliance on disk-based virtual memory.
[3] Towards the end of 1987 Boeing announced its intention to leave the microcomputer software industry.
Boeing Calc ceased development in 1988, with the final copies being sold off to employees at a discount price of $50.