Loan & Compound Calculator
Auto Loan, Mortgage & Compound
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Three calculators in one: auto loan with 50-state sales tax, mortgage with PMI & HOA, and compound interest with reverse solving. No subscription, no ads.
Loan & Compound Calculator is the only app that combines auto loan, mortgage, and compound interest calculators into one clean, modern tool. No ads. No subscription. No data collection.
THREE CALCULATORS, ONE APP
Auto Loan Calculator
• Instant monthly payment as you type
• 50-state sales tax - pick your state, tax is calculated automatically
• Trade-in tax deduction - knows which states allow it (8 don't)
• Lease mode - residual value, money factor, depreciation + financing breakdown
• Full amortization schedule
• Extra payment simulator - see how much interest you save
Mortgage Calculator
• Principal & Interest monthly payment
• PMI auto-calculated when down payment is under 20%
• Property tax (state averages built-in, or enter your own)
• Home insurance + HOA - see your TRUE monthly cost
• Extra payment analysis - save thousands in interest
• Full amortization schedule with monthly detail
Compound Interest Calculator
• Future value with regular deposits
• Multiple compounding frequencies (daily, monthly, quarterly, annually)
• Reverse solve - 'How much do I need to save monthly to reach $1M?'
• Inflation-adjusted real value
• Tax-adjusted returns
• Rule of 72 quick estimate
WHY THIS APP EXISTS
Most loan calculator apps were last updated 4 to 12 years ago. They're slow, ugly, and missing critical features like sales tax, PMI, or lease calculations. We built one modern app that does all three - properly.
• Real-time calculation - no 'Calculate' button, results update as you type
• 50-state tax database - sales tax, trade-in rules, and property tax averages
• Dark mode + landscape support
• iPad native layout
• Everything runs locally on your device - your financial data never leaves your phone
FREE vs PRO
Free:
• Basic monthly payment for auto, mortgage, and compound
• Core inputs (price, down payment, rate, term)
• Dark mode, landscape, iPad support
Pro ($4.99 one-time, all modules unlocked):
• Sales tax calculation (50 states)
• Trade-in tax deduction logic
• Lease calculator
• PMI, property tax, insurance, HOA
• Full amortization schedules
• Extra payment / early payoff analysis
• Compound reverse solve, inflation & tax adjustment
• Save unlimited plans
• Compare two plans side by side
• Export to PDF
One-time purchase. No subscription. No ads. Ever.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 彧 殷, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 彧 殷
- Size
- 2.9 MB
- Category
- Finance
- Compatibility
Requires iOS 26.5 or later.
- iPhone
Requires iOS 26.5 or later. - Mac
Requires macOS 26.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.5 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Unlock $4.99
- Copyright
- © 2026 LoanCalcultor

