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.
Primality screenshots
Ranked alternatives
Showing 581–600 of 1,000 ranked alternatives.




Planetary Clock
Piotr Knapczyk
Track positions in real time
View positions of all solar system planets at any date. Adjust time to see real-time movements. Display accurate orbit sizes, eccentricity, and orbital shapes based on NASA data. Show realistic planet sizes relative to each other.





Dictionary of Paraphrases
Lan Huong
Paraphrase words with synonyms and examples
Provides offline access to a . Look up words to see meanings, sample sentences, and synonyms. Replace phrases with alternative expressions for clearer communication.


CITESwoodID
Sven Koch
Identify and describe CITES-protected timbers
Identify CITES-protected timber species using macroscopic features. Access descriptions and compare characteristics. Perform interactive identification based on visual data. Store and retrieve species information for reference.

Retro Classics: Collection 1
Rob Wilmot
Four classic games from childhood.
The app provides four classic games, offering bright graphics and retro sounds. It simulates handheld and tabletop games from a past era.





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