Primality app icon

Apps Like Primality for iPhone and iPad

Check if a number is prime

Determine if a number is prime or list its prime factors. Input any integer between 0 and 999,999,999,999. Identify the prime ordinality of a prime number, showing its position in the sequence of primes.

by Bruce Schechter★ 4.926 ratingsUtilitiesFreeData updated 2026-09-26

Primality screenshots

Ranked alternatives

Showing 221–240 of 1,000 ranked alternatives.

  1. NonRev app icon

    NonRev

    Airline Employee Travel Services LLC

    Track flight status and seat assignments

    Plan non-revenue travel by searching for flights and viewing seat availability estimates. Track flight status and receive updates on boarding. Manage travel dates and preferences for standby trips.

    ★ 4.5404 ratingsTravelFreeData updated 2026-09-08
  2. RPN-34 CE app icon

    RPN-34 CE

    Willy Kunz

    Simulate HP-34C calculator

    Simulate the HP-34C calculator with photo-realistic graphics. Perform integration and root finding calculations. Access extended functions and improved speed. Navigate using on-screen buttons and keyboard input. Save and recall values.

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  1. Cell Phone Tracker GPS Locator app icon

    Cell Phone Tracker GPS Locator

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    Track contacts via number

    Track individuals' locations using their number, contact list, or manual input. Send an SMS request to obtain precise GPS coordinates displayed on a map. Monitor real-time movement and view historical location data.

    ★ 4.3460 ratingsUtilitiesFreeData updated 2026-09-06
  2. Simple Hex Calc app icon

    Simple Hex Calc

    Hiroki Ishiura

    Calculate, logic, memory, shift

    Perform arithmetic, logical, and memory operations. Calculate modulo, bit shifts, and bitwise functions. Save and load values. Switch number bases and modes via device rotation or screen edges.

    ★ 4.58 ratingsUtilities$0.99Data updated 2026-09-08
  3. Simple DoF Calculator app icon

    Simple DoF Calculator

    Dennis van den Berg

    Calculate depth of field and hyperfocal distance

    Calculate depth of field and hyperfocal distance based on camera type, aperture, focal length, and focus distance. Display near and far limits, total depth of field, and distances in front and behind the subject.

    ★ 4.6104 ratingsPhoto & VideoFreeData updated 2026-09-08
  4. Halcyon Calc Lite app icon

    Halcyon Calc Lite

    Halcyon Touch Software

    Calculate and scroll through numbers

    Perform calculations with over 225 built-in operations including trigonometry, logarithms, complex functions, and real numbers. Scroll through the stack with finger gestures. Copy and paste results. Work with real and complex numbers.

    ★ 4.715 ratingsUtilitiesFreeData updated 2026-09-08
  5. Prime Print app icon

    Prime Print

    iWare Inc.

    Directly from websites, emails, and photos

    Documents, websites, and photos directly to Wi-Fi printers. Choose from various layouts and customize printouts. Support includes PIXMA MP990, MP640, MP560, and MX340 series. Design and create custom printouts with layout options.

    ★ 4.596 ratingsUtilities$2.99Data updated 2026-09-09
  6. Math Ref app icon

    Math Ref

    Happy Maau Studios, LLC

    Formulas, figures, and calculations for users.

    The app provides over 1,400 formulas, figures, and examples for math, physics, and chemistry. It includes tools like a unit converter and solvers for common calculations.

    ★ 4.326 ratingsEducation$1.99Data updated 2026-09-10
  7. Ronak Gold Bullion Live Rates app icon

    Ronak Gold Bullion Live Rates

    RONAK GEMS PRIVATE LIMITED

    Check and silver in real time

    View and silver prices for bars, coins, and . Track current and compare prices across different products. Set price alerts and receive notifications for market changes. Share rate updates with others via social media or messaging.

    ★ 4.621 ratingsFinanceFreeData updated 2026-09-11
  8. Uva app icon

    Uva

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    ★ 3.18 ratingsFood & DrinkFreeData updated 2026-09-10

How we rank alternatives

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