Free42 app icon

Apps Like Free42 for iPhone and iPad

Calculate and print with precision

Perform complex calculations with advanced mathematical functions and programming capabilities. Print results using compatible printers. Save and load calculator sessions. Access open-source code and modify under GNU GPL v2 terms.

by Thomas Okken★ 4.8283 ratingsUtilitiesFreeData updated 2026-09-08

Free42 screenshots

Ranked alternatives

Showing 61–80 of 1,000 ranked alternatives.

  1. Real Estate Master IIIx app icon

    Real Estate Master IIIx

    Calculated Industries, Inc.

    Calculate mortgage payments on the go

    Calculate mortgage payments, estimate closing costs, and determine loan amounts. Input property details and interest rates. Generate reports and save calculations. Share results via email or cloud storage. Sync data across devices.

    ★ 4.91,393 ratingsFinanceFreeData updated 2026-09-08
  2. Calculator Keyboard - Calku app icon

    Calculator Keyboard - Calku

    Supagarn Pattananuchart

    Calculate within any

    Allows users to perform calculations directly within compatible apps. Input equations using the . Dark Mode is supported. Full iPadOS compatibility is available. Customization options are provided.

    ★ 4.7476 ratingsUtilitiesFreeData updated 2026-09-06
  3. OctoApp for OctoPrint/Klipper app icon

    OctoApp for OctoPrint/Klipper

    Erhard Christian Wurthner

    Connect printers, prepare jobs, start prints

    Manage 3D printer connections with OctoPrint and Klipper. Prepare prints by heating hotends and swapping filaments. Monitor print progress and control settings in real time. Sync with Bambu Lab and Elegoo printers.

    ★ 4.9931 ratingsProductivityFreeData updated 2026-09-06
  1. Math AI: Study Companion app icon

    Math AI: Study Companion

    Peter Jones

    Solve equations and calculate results

    Solve basic problems with a user-friendly . Handle complex equations with functions. Perform calculations, graph functions, and convert units. Store frequently used formulas for quick access.

    ★ 4.21,448 ratingsUtilitiesFreeData updated 2026-09-18
  2. Calc4Key app icon

    Calc4Key

    Khang Le

    Calculate anywhere with keyboard input

    Calculator keyboard allows users to perform arithmetic operations directly within any . Input numbers and symbols using the on-screen keyboard.

    ★ 4.6815 ratingsUtilities$0.99Data updated 2026-09-06
  3. Calculator-Basic & Scientific app icon

    Calculator-Basic & Scientific

    清龙 李

    Calculate, solve, and analyze math problems

    Perform basic and calculations including trigonometric and inverse trigonometric functions. Use mathematical functions like absolute value, ceiling, floor, and rounding. Modify calculations in real time by clicking steps.

    ★ 4.7338 ratingsUtilitiesFreeData updated 2026-09-06
  4. i41CX+ app icon

    i41CX+

    Antonio Lagana

    Programmable, expandable, calculate

    Perform complex calculations using RPN and CAS. Run custom programs and modules. Print or plot results via thermal printer. Import/export data in various formats. Access keyboard overlays and iOS features for enhanced functionality.

    ★ 4.8108 ratingsProductivity$24.99Data updated 2026-10-22
  5. Stash - Rule Based Proxy app icon

    Stash - Rule Based Proxy

    Stash Networks Limited

    Set rules, connect securely, manage proxies

    Manage network traffic with - routing for TCP, UDP, and ICMP protocols. Configure servers and apply rules on domain, IP-CIDR, or User-Agent. Support DNS over TCP, TLS, and HTTPS. Enable MitM, HTTP rewriting, and on-demand connections.

    ★ 4.41,258 ratingsUtilities$5.99Data updated 2026-11-08
  6. Tofu Authenticator app icon

    Tofu Authenticator

    Calle Luks

    Generate one-time passwords for secure logins

    Generate one-time passwords for two-factor authentication. Support HOTP and TOTP protocols. Authenticate accounts on services like Google, Facebook, and GitHub. No network connection required. Store and manage authentication keys locally.

    ★ 4.6101 ratingsUtilitiesFreeData updated 2026-09-10
  7. Scientific Calculator Premium app icon

    Scientific Calculator Premium

    Nixus Development

    Calculate, graph, and store equations

    Perform complex calculations with root, power, trigonometric, and logarithmic functions. Calculate factorials and double factorials. Draw graphs, use four memory blocks, insert constants, and make notes.

    ★ 4.5286 ratingsUtilitiesFreeData updated 2026-09-08
  8. EduCalc Classic app icon

    EduCalc Classic

    William Jockusch

    Calculate and graph mathematical functions

    Perform complex calculations with a scientific calculator featuring arithmetic, exponentiation, roots, logarithms, factorials, permutations, combinations, and modulus. Graph functions and equations. Export results and share calculations.

    ★ 3.9303 ratingsEducationFreeData updated 2026-09-08
  9. Drivers Daily Log app icon

    Drivers Daily Log

    MicroAntics Inc

    Log driving hours and records

    Create RODS for duty status records, sign and email them. Track driving hours, log activities, and print records. Manage logs with pages that require purchase after the first 30.

    ★ 4.4601 ratingsBusinessFreeData updated 2026-09-08
  10. JavaScript Anywhere JSAnywhere app icon

    JavaScript Anywhere JSAnywhere

    Tatsuya Tobioka

    Pocket programming editor for web engineers.

    The app provides a portable editing tool for web engineers and designers. It allows users to write JavaScript, HTML, and CSS source code, preview it on an internal browser, and view console logs or errors.

    ★ 3.5457 ratingsUtilitiesFreeData updated 2026-09-13
  11. ▸ Calculator + app icon

    ▸ Calculator +

    CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC

    Calculate, convert, and solve equations

    Perform complex calculations using 12 built-in calculators including scientific, financial, and unit conversion tools. Input formulas with three modes: standard, string, and RPN.

    ★ 4.7899 ratingsUtilities$1.99Data updated 2026-09-08
  12. GO-25 SciRPN app icon

    GO-25 SciRPN

    Steve Lidie

    Calculate with RPN and stack registers

    Simulates a programmable scientific calculator with RPN input. Features a 10-digit LED display, four stack registers, and ten storage registers. Includes math, trigonometric, and statistical functions.

    ★ 4.723 ratingsUtilities$4.99Data updated 2026-09-08
  13. PCalc app icon

    PCalc

    TLA Systems Ltd.

    Calculate, convert, and program with precision

    Perform complex calculations with scientific, engineering, and hexadecimal modes. Use RPN and multi-line display. Convert units and access constants. Undo and redo actions. Sync with Apple Watch for on-the-go calculations.

    ★ 4.7779 ratingsUtilities$9.99Data updated 2026-11-06
  14. Calculator´ app icon

    Calculator´

    Oval Software Oy

    Calculate, edit, and share formulas

    Perform calculations with a customizable interface and live results. Define and share advanced functions. Use 3D Touch shortcuts and an expandable widget. Search history via Spotlight.

    ★ 4.6472 ratingsProductivityFreeData updated 2026-09-09
  15. Authenticator app icon

    Authenticator

    Matt Rubin

    Generate one-time passwords for accounts

    Generate one-time passwords via QR code, URL, or manual entry. Verify accounts with time-based codes. Store authentication secrets locally. Support for multiple accounts and -specific codes.

    ★ 3.7420 ratingsUtilitiesFreeData updated 2026-09-08
  16. HitVPN app icon

    HitVPN

    Overwin Internet Solutions Limited

    ★ 3.4436 ratingsProductivityFreeData updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.