Prime Checker vs Memorize Prime Numbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prime Checker
This app performs advanced mathematical calculations for numbers, including integer factorization, Euler's totient function, and solving specific Diophantine equations. It utilizes advanced algorithms for factorization and primality testing.
- Integer factorization
- Euler's totient function
- Primitive root calculation
- Diophantine equation solver
- Primality testing
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This application calculate values of given number which are described below: * Integer factorization * Euler's totient function * Primitive root (if exist) * x, y where x^2 + y^2 = p if p is 4n+1 * x, y where x^2 + 3y^2 = p if p is 3n+1 * x, y where x^2 + 2y^2 = p if p is 8n+1 or 8n+3 * x, y where x^2 - 2y^2 = p if p is 8n+1 or 8n+7 This application uses Fermat algorithm, Pollard's rho algorithm and Lenstra's ECM for factorization, Miller–Rabin algorithm for primality test
Memorize Prime Numbers
Learn to memorize hundreds of prime numbers within a week using a provided method. This app offers a unique approach to remembering these special numbers.
- Memorize hundreds of prime numbers
- Learn a provided memorization method
- Focus on prime number recall
- Suitable for quick learning
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Memory Pi digit is a competition. There are another type of number also good as memorize. Which is Prime Numbers. Prime Numbers is very special. But no easy to memory. Using our provided method, you are easy to remember hundreds of Prime number with a week. Try you will know.
Screenshots
Verdict
The clearest difference is review sentiment: Prime Checker at 96% against Memorize Prime Numbers's 50%. Prime Checker also leads on rating (5.0 vs 3.0) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Prime Checker holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 96% of Prime Checker's written reviews are positive against 50% of Memorize Prime Numbers's.
Prime Checker ships an update every 17 months, Memorize Prime Numbers every 14 months. The most recent releases landed on September 29, 2026 and October 25, 2026 respectively.
| Parameter | Prime Checker | Memorize Prime Numbers |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 95.8% of reviews — better | 50.0% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 17 months | Every 14 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 12.4 — better | 16.6 |
| Further details — not scored | ||
| Size | 3 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Heart Solutions, Inc. | Oscar Tsang |
Customer experience
Prime Checker
Memorize Prime Numbers
In-app purchases
Prime Checker
No in-app purchases
Memorize Prime Numbers
No in-app purchases
Questions
Is Prime Checker free?
Is Memorize Prime Numbers free?
Which has better reviews, Prime Checker or Memorize Prime Numbers?
Do Prime Checker or Memorize Prime Numbers have ads?
Which is updated more often, Prime Checker or Memorize Prime Numbers?
Other comparisons
