| Frame | Engineering software for frame analysis. Intended for consulting engineers, civil/structural engineers, mechanical engineers and engineering students. | Sinclair QL, Timex/Sinclair 2068 |
| Grid | Engineering software for grid analysis. Intended for consulting engineers, civil/structural engineers, mechanical engineers and engineering students. | Sinclair QL, Timex/Sinclair 2068 |
| Truss | Engineering software for truss analysis. Intended for consulting engineers, civil/structural engineers, mechanical engineers and engineering students. | Sinclair QL, Timex/Sinclair 2068 |