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 601–620 of 1,000 ranked alternatives.

  1. eatTrace app icon

    eatTrace

    Z Creative Studio Srls

    ★ 0.00 ratingsProductivityFreeData updated 2026-09-06
  1. RepetitiveT app icon

    RepetitiveT

    Robert White

    Countdown timer for multiple repetitions.

    The app counts down time for multiple repetitions of an exercise or event. It can count down rest periods between events and is suitable for interval exercising, physical therapy, and training regiments.

    ★ 4.05 ratingsHealth & FitnessFreeData updated 2026-11-02
  2. Body Mass Index Calculator BMI app icon

    Body Mass Index Calculator BMI

    Armchair Engineering

    Calculate BMI and healthy weight range

    Calculate BMI using height and weight. Determine healthy weight range based on height. Choose height units from mm, cm, m, km, inches, feet. Select weight units from kg, lb. Set decimal places for precision.

    ★ 4.824 ratingsHealth & FitnessFreeData updated 2026-09-10
  3. Calculator Abacus Suite app icon

    Calculator Abacus Suite

    Clever Algorithm LLC

    Calculate, convert, and solve equations

    The provides 74 calculators for various tasks. Users can perform financial calculations, scientific computations, and unit conversions. Features include loan calculations, equation solving, and unit conversion tools.

    ★ 5.02 ratingsUtilitiesFreeData updated 2026-09-06
  4. Dict А-Я app icon

    Dict А-Я

    Alexey Solovyov

    Look up Russian words and definitions

    Look up Russian words with spelling, synonyms, and definitions. Access etymological information and foreign word translations. Search across multiple dictionaries for accurate meanings and word forms.

    ★ 4.33 ratingsReference$3.99Data updated 2026-10-23

How we rank alternatives

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