188+ iOS apps curated and reviewed
The best calculateretro apps on iPhone average 4.5★ across 188+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
This app allows users to track all their calculations with features like a backspace key, history printing, and PDF export. It supports Apple Watch, dark mode, and customization of display and fonts. Calculations can be shared via email or saved for later access.
Access a comprehensive suite of financial tools for personal and business use. Calculate loans, mortgages, investments, retirement savings, and more with ease. This app offers a wide range of specialized calculators for detailed financial analysis.
This app offers a comprehensive suite of over 40 financial and utility calculators. Easily handle complex calculations like investment analysis, tax percentages, profit margins, and everyday percentage needs with a clean and intuitive interface.
This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.
This app simplifies math with basic, scientific, and fraction calculations. It also features a unique snap-and-scribble function to solve problems from photos. Customize your experience with themes and access a calculation history.
This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.
A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.
Easily calculate sales tax and IVU for Puerto Rico, or any other tax rate, before making a purchase. This free, user-friendly tool also functions as a full arithmetic calculator and can incorporate discounts into your total price calculations.
This app offers a powerful calculator with hundreds of pre-built templates for finance, engineering, and more. Users can also create custom calculations for specific needs, ensuring accuracy and speed for repetitive tasks. Access your calculations across devices, online or offline.
This app emulates the functionality of the HP 12C Financial Calculator, offering all its features and more for mobile devices. It provides a reliable and convenient way to perform complex financial calculations on the go.
A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.
Easily calculate loan payments with detailed analytics and visual tools. This app offers a clean interface to help you understand your loan's interest and principal breakdown, with options for extra payments and custom currency symbols.
Calculate monthly payments for mortgages, car loans, credit cards, and more. Easily add adjustments like insurance and property taxes to see their impact. Save and email loan details with amortization schedules.
Calculate monthly loan payments for mortgages, auto loans, and credit cards. Simulate "what if" scenarios to see how extra payments save you money and pay off loans faster. Track all extra payments and view detailed amortization schedules.
This intuitive app offers a powerful and accurate financial calculator for various calculations. It handles time value of money, growing annuities, bond valuation, cash flow analysis, investment analysis (IRR/NPV), and loan amortization. RPN support and near-instantaneous results are also included.
Calculate installment loans with various repayment methods. This tool helps you determine monthly payments, principal, interest, and remaining balance for different loan scenarios.
This app emulates a professional financial calculator, offering identical capabilities and operation sequences to its hardware counterpart. It provides advanced financial calculations, including time value of money, cash flow analysis, and bond yields, with an intuitive user experience.
This app offers a comprehensive suite of 12 calculators, including scientific, currency, unit, and finance functions. It features advanced modes, extensive formula support, and a user-friendly interface for all calculation needs.
Calculate percentage changes quickly and easily. This tool helps determine starting values, percentages, differences, or end values for various scenarios like salary increases or sale promotions.
This app is a specialized calculator for construction professionals, offering advanced functions for carpentry and building tasks. It supports various dimensional formats and provides instant help with videos and diagrams.