We actually assume uniform distributions for the inputs of the sensitivity analysis.
This tool is a standalone thing, and you're right — it's similar to TopRank. Our actual product, Causal (https://causal.app) has aspects of @RISK, but packaged in our own (non-spreadsheet) modelling paradigm.
Nice demo! It's perhaps a little confusing if you're using uniform probability distributions for the sensitivity analysis inputs, but normal distributions for the uncertainty analysis (shown at https://causal.app/buy-to-rent).
This tool is a standalone thing, and you're right — it's similar to TopRank. Our actual product, Causal (https://causal.app) has aspects of @RISK, but packaged in our own (non-spreadsheet) modelling paradigm.