* [[Cashbook Accounts]] ([[Amsoft]]/[[Saxon Computing]])
* [[C-Lab|C-Lab]] Various utilities for coders ([[FG Brain|FG Brain]])
* [[Cosmos|Cosmos]] (Personal Cost Monitoring System for [[CP/M|CP/M]] by [[KSL|KSL]], 2005-2020)
* [[Decision Maker]] ([[Amsoft]]/[[Triptych Publishing]])
* [[Grasp|Grasp]] Graph & function generator ([[Camel Micros]])