Everything a spreadsheet wishes it could do
Formulas you already know, structure spreadsheets never had, and publishing surfaces no spreadsheet will ever grow.
Model the logic
Start like a spreadsheet. End up with a real model.
Formula engine
Over 100 Excel-style functions — IF, SUM, LOOKUP, PMT, dates — with live recalculation and dependency tracking. Reference values across models with plain names: price@quote, height@frame. If you can write a spreadsheet formula, you already know the language.
Collections & line items
Repeating things — invoice lines, roof faces, payments — are real collections. Each member computes its own formulas; the model aggregates with SUM and SUMIF. Running-balance chains (amortization schedules) work with index and @prev, no copy-pasted rows.
Tables & lookups
Rate cards, catalogs, standards tables. LOOKUP finds threshold or exact matches; LOOKUP2 reads two-axis matrices (weight × zone freight cards, pressure-correction grids). Tables live in your Library, render on pages as real grids, and drive dropdowns.
Rules
Models that build themselves. Quantity rules create the right number of parts (rungs per ladder height). Distribute rules place them. Check rules watch or prevent invalid states. Show rules derive live geometry from the product. Change an input — the structure follows.
Kinds & ontology
Every part knows what it is. A built-in classification tree — parts, materials, mechanical and electronic families, PLM-style — that you extend with your own kinds. Rules target kinds, designs match by kind, geometry attaches by kind: classification is what makes models composable.
Blueprints & designs
Capture a working model — structure, formulas, collections, views — as a Blueprint and stamp new instances from it. Designs capture a configuration (a variant, a SKU) and apply to any instance of the same kind. Build it once; every future one starts finished.
Live 3D
Parametric scenes driven by the model: cylinders, blocks, materials with real reflections. Slide a stroke length and watch the rod resize; switch a mount style and the flange swaps for trunnion pins. The 3D is derived from the product — never drawn by hand twice.
Build it faster
Two ways to skip the blank page.
Excel import
One button: pick a workbook, get a working app. Formulas transpile — including SUM ranges, VLOOKUP, INDEX/MATCH, and running balances — and every result is verified against your spreadsheet's own computed values, cell by cell, with a receipt that tells you exactly what carried over.
AI Companion
Describe what you want — the Companion builds it through real model operations, never blind text generation. Ask questions about your project, add pages and formulas by chat, review every change, and revert anything. Your model stays yours: inspectable, editable, verifiable.
Ship it
One model. Every surface.
Publish & embed
One click publishes an interactive app — viewers enter values and see results, no account needed. Embed it in any website with an iframe: your calculator on your domain, computing live. Pin the color mode, brand the layout, share the link.
API & AI tools
Every published project is automatically a REST compute API and an MCP tool — AI assistants can discover your model's inputs and call it for certified, computed answers instead of hallucinated math. Your pricing logic becomes infrastructure.
Print & PDF
Quote sheets, schedules, and spec pages print cleanly — forms become value sheets, 3D scenes snapshot, grids paginate. Your published tool is also the paper your customer signs.
See it compute
The examples are live — slide the inputs and watch models, prices, and 3D respond.