Mortgage Mate
Mortgage Mate is a web app built for the mortgage and real estate finance space. It gives professionals and homebuyers a full set of modern, accurate calculators that can be added to any website with a simple iframe embed.
Creative & Technical
Research, Design & Full-Stack Development
MVP: 4 weeks Project: Ongoing
37% increase in conversions
The Challenge
Understanding the problem space and identifying key obstacles.
Most mortgage calculators available to the public are either clunky plugins or third-party links. They rarely match the host site's look and feel, and many require monthly fees. Worse, the calculations can be inaccurate or oversimplified. In a high-rate environment—rates on 30-year purchase mortgages averaged 6.93 % in June 2025 and fluctuated between 5.89 % and 7.15 % over the year; borrowers and professionals can't afford guesswork. Investopedia notes that mortgage rates are shaped by 10-year Treasury yields, Federal Reserve policy and competition between lenders, creating volatility that demands precise tools.
As developers, we knew that shoving a one-size-fits-all plugin into a site wasn't good enough. The market lacked affordable, beautiful calculators that could be easily integrated into any platform. Existing widgets often returned minimal data and forced users to leave the host site—conditions that hurt conversion and user trust.
The market lacked affordable, beautiful calculators that could be easily integrated into any platform.
The Solution
Our approach to solving the challenge through design and technology.
Our team built Mortgage Mate from the ground up with a focus on accuracy, usability, and design. We worked with mortgage professionals to ensure the formulas and ratios match industry standards. The calculators are delivered in a lightweight iframe that developers can embed with a simple copy and paste. The neutral design integrates seamlessly into finance websites, blogs, and portals without clashing with brand colors. Each tool includes professional charts and clear breakdowns, giving users a detailed view of principal, interest, taxes, insurance, PMI, and closing costs.
Complete Calculator Suite
- ✓
Mortgage Payment: Calculates monthly payments with itemized breakdowns.
- ✓
Affordability: Estimates home price ranges using debt-to-income (DTI) ratios across loan types.
- ✓
Buydown: Compares temporary and permanent buydowns with cost-benefit analysis and break-even timelines.
- ✓
DSCR: Evaluates cash flow and debt-service coverage for investment properties.
- ✓
Refinance: Projects savings and break-even points for refinancing scenarios.
- ✓
Net Proceeds: Calculates seller net proceeds, factoring commissions and closing fees.
- ✓
Rent vs. Buy: Compares long-term financial outcomes of renting versus buying.
- ✓
HELOC: Estimates borrowing capacity, payments, and payoff strategies.
- ✓
Closing Costs: Provides state-specific estimates and cost-saving insights.
By offering this complete suite in a unified design, we solved the challenge of scattered, inconsistent tools and gave users a single trusted source for accurate mortgage and real estate calculations.
Experience It Live
Explore the complete suite of mortgage calculators with live, interactive tools that professionals and homebuyers trust.
9 specialized calculators with instant results
White-label customization for seamless brand integration
99.9% uptime with global CDN delivery
10,000+ monthly calculations across 500+ active websites
Performance That Matters
Built for speed and optimized for every device. Real metrics from real users.
Performance matters on every device. Mortgage Mate scores 99/100 on Lighthouse performance testing. Key results include:
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First Contentful Paint: 1.1 seconds
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Total Blocking Time: 40 ms
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Largest Contentful Paint: 2.1 seconds
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Cumulative Layout Shift: 0 (no layout shifts)
These numbers translate into a fast, responsive experience that feels just as smooth on a smartphone as it does on a desktop.
Responsive Design The calculators adapt to any screen size. On smaller devices, inputs and charts stack vertically for easy scrolling. On larger screens, the layout shifts to side-by-side for quick comparisons. The neutral color palette and clear typography ensure readability in any environment.
Optimized Delivery We optimized the JavaScript bundle so the iframe loads quickly without blocking the host site. This approach improves user engagement and supports SEO.
Measurable Impact
Significant improvement in user engagement and action
Optimized performance for better user experience
Increased engagement and content exploration
Ready to Create Something Extraordinary?
Let's work together to build a solution that drives real results for your business.