One Engine,
Every Calculator
A schema-driven architecture that powers every calculator from a single, battle-tested engine. Define once, deploy anywhere, customize everything.
Every Calculator You Need
From basic mortgage payments to complex investment analysis—and more on the way. All powered by the same engine, all customizable, all ready to embed.
Mortgage Payment
Monthly P&I, taxes, and insurance
Affordability
How much home you can afford
Buydown
Rate buydown cost analysis
Closing Costs
Estimated closing expenses
DSCR
Investment property debt service
HELOC
Home equity line of credit
Net Proceeds
Seller net after closing
Refinance
Refi savings analysis
Rent vs Buy
Cost comparison over time
Every calculator—current and future—is powered by a single rendering engine. Same quality. Same customization. Zero duplication.
Schema-Driven Design
Calculators are defined declaratively, not coded imperatively. The engine reads the definition and produces the experience—consistently, reliably, every time.
Schema
Defines the calculator structure: inputs, formulas, outputs, and constraints
Configuration
User customizations layered on top: visibility, parameters, labels, CTAs
Theme
Visual styling applied separately: colors, typography, spacing, borders
Fully interactive, customized to your specs, ready for your website.
Built for Reliability
A unified engine means consistent behavior, predictable results, and confidence in every calculation.
Consistent Quality
Every calculator benefits from the same rendering logic. Fix one bug, fix them all. Improve one feature, improve them all.
Instant Updates
Engine improvements roll out to all calculators automatically. No manual updates needed on your end.
Declarative Simplicity
Calculators are defined in simple schemas. No complex logic to maintain, no code to debug.
API-Ready
The same engine that renders UI also powers our REST API. Calculate programmatically with the same accuracy.
Separation of Concerns
Schema defines what. Config defines customization. Theme defines how it looks. All independent, all swappable.
Infinite Flexibility
Add new calculators without new code. The engine reads the schema and produces the experience.
Same Engine, API Access
The engine that powers our UI also powers our REST API. Run calculations programmatically, integrate with your systems, and build on top of our platform.
{
"inputs": {
"annualIncome": 150000,
"monthlyDebts": 800,
"downPayment": 60000
}
}{
"maxHomePrice": "$525,000",
"monthlyPayment": "$3,150",
"breakdown": { ... }
}Experience the Difference
A growing library of professional calculators. One powerful engine. Unlimited customization. Join thousands of mortgage professionals already using MortgageMate.