The Twin 2.x

"The Twin", from Mosaic Software, is a spreadsheet that touts compatibility and visual similarity with Lotus 1-2-3.

Unlike Lotus 1-2-3 release 2.0 that it competed against, it had better graphics, a much lower price, and was not copy protected. It was a little slower than Lotus 1-2-3, but this was less of an issue for budget users.

The Twin had significant market success during the late 80s. However The Twin, along with Paperback VP-Planner and Borland Quattro Pro were the subject of a lawsuit claiming that duplicating the "look and feel" violated Lotus's copyrights.