Open Information Systems

Developer of Super Useful Apps

About OIS

Open Information Systems is now trading as OPTIMAL.
Solo Developer of Computer Software based in Durban, South Africa.
Optimal is focused on creating apps that work with the user.

Optimal software :


• is not restrictive. Optimal apps often provide more than one way to perform a task, or tasks.

• Allows the export of data into multiple formats using preset and custom layouts for maximum usefulness.

• Allows users to define the look of the UI

• Provides maximum efficiency via keyboard shortcuts and scripting

• Approaches problems in unique ways, resulting in novel solutions

• Is extendable. Users can contact me to have new features added.

• Is never dead. Apps can receive updates at any time to improve performance and usability.



Apps 2025

Quicken Bible
Launching Q2 2025


Code*** ***
Launching Q3 or Q4 2025