PrimeCalc vs Factorial Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrimeCalc
Read full descriptionHide full description
--- PrimeCalc feature --- ■ Normal arithmetic operation (×, /, +, -) is available. ■ prime: integer calculation (Division remainder ÷, prime factorization p) can be done. (You can also exponentiate.) ■ auto: Automatic calculation, memory storage, history recording is possible. ■ global: Digit display of countries around the world is possible. （千、万、億、兆、京、垓、・・・） ■ iPhone / iPad is available. Free. We are displaying advertisements. Caution) In case of large number, calculation error etc. may occur. Please use it together with other calculator. If you have comments, questions, etc., please email or bulletin board. http: //www.eonet.ne.jp/~treechart/
Factorial Calculator
Easily compute the factorial of any whole number with this straightforward utility. Designed for simplicity and ease of use, it provides a quick way to get factorial results.
- Calculate factorials
- Whole number input
- Easy to use interface
- Quick results
Read full descriptionHide full description
This Factorial Calculator helps you to calculate the factorial of a whole number in an easy way. Factorial Calculator is great application and easy to use.
Screenshots
Verdict
The clearest difference is update cadence: PrimeCalc at every 5 weeks against Factorial Calculator's every 12 months. On price, ads, in-app purchases and device support 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.
PrimeCalc ships an update every 5 weeks, Factorial Calculator every 12 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | PrimeCalc | Factorial Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 5 weeks — better | Every 12 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Yutaka Nakao | SDG CODE DOO NIS |
In-app purchases
PrimeCalc
No in-app purchases
Factorial Calculator
No in-app purchases
Questions
Is PrimeCalc free?
Is Factorial Calculator free?
Do PrimeCalc or Factorial Calculator have ads?
Which is updated more often, PrimeCalc or Factorial Calculator?
Other comparisons
