EXPLAINABLE MODELS

Focus on the logic, not the formulas

Draw your model as a diagram and configure each operation with visual parameters. River handles the calculation details. 

No more cryptic formulas spread across dozens of sheets. Your logic is visible on screen, so you can explain it to a client, hand it to a colleague, and pick it up yourself three months later.

BUILT-IN TRUST

Never forget a quality check

River validates every step of your model automatically: inputs, calculations, lookups. If a data update breaks an assumption or silently drops rows, you know immediately instead of finding out in the final numbers.

Update your data with confidence. Spend your time on analysis rather than debugging.

SAFE MODELING

Complex operations, made safe

River gives you a toolkit for the operations that are hardest to get right in Excel or in Python.

• Scenario and assumption management
• Multi-column table merges
• Reshaping data (pivot, unpivot, transpose)
• Iterative calculations
• Forecasting

Think VLOOKUP or JOIN, without the risk of a wrong match, and updating automatically when the data changes. 

AI YOU CAN RELY ON

Deterministic results, whatever the assistant

AI is good at producing formulas quickly. It is not good at guaranteeing they are right, and reviewing generated formulas cell by cell defeats the purpose.

With River, the model logic stays deterministic and auditable. AI helps you build and publish around it, not invent your numbers.

AI leverage, deterministic results.

PRODUCTIVITY

Powerful for analysts, not just engineers

River shows you the data at every step, right in the Excel grid. No black box, no guessing what a script is doing.

Excel data goes in and out freely, so you keep charts, formatting and dashboards where your stakeholders expect them. And the calculation engine handles tables of millions of rows, well past the point where formulas slow to a crawl.