Comparison

CheckPrimeNumbers vs PFD Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

CheckPrimeNumbers

Check if a number is a Prime

Prime factor decomposition.

Free

📚 Education

No ratingsView app →

About

CheckPrimeNumbers

Features

Read full description

Input numbers into this app to find out if the numbers are prime or not. The app also displays all the factors of the input numbers.

About

PFD Calc

Features

Read full description

The app calculates prime factorization.

Screenshots

CheckPrimeNumbers1 screens

PFD Calc2 screens

Verdict

The call

The clearest difference is price: PFD Calc at Free against CheckPrimeNumbers's $0.99. CheckPrimeNumbers's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

PFD Calc is free to download; CheckPrimeNumbers costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 4 level

CheckPrimeNumbers versus PFD Calc: the parameters behind the verdict, then further details
Parameter	CheckPrimeNumbers	PFD Calc
Price	$0.99	Free — better
Update frequency	—	Every 5 weeks
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	15.0
Further details — not scored
Size	0 MB	14 MB
Age rating	4+	4+
Developer	Sreekanth Parigela	Kazuhisa Kobayashi