# Is it Prime? vs Divisors

The clearest difference is update cadence: Divisors at weekly against Is it Prime?'s every 74 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Is it Prime? ships an update every 74 months, Divisors weekly. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Is it Prime? | Divisors |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (5 ratings)](https://appshunter.io/ios/app/is-it-prime/id326095651/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 74 months | **Weekly** |
| Monetization | Free | — |
| Size | 1 MB | 7 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Wismar](https://appshunter.io/developer/307757950) | [DORU SULAR](https://appshunter.io/developer/1675124003) |

## What reviewers say

### Is it Prime?

[App page](https://appshunter.io/ios/app/is-it-prime/id326095651)

Enter any number to instantly determine if it is a prime number or not. This straightforward utility provides a quick answer to your mathematical curiosity.

**Highlights:** Prime number identification, Simple number input, Instant yes/no results

**Features:** macOS Compatibility

**In-app purchases:** none


### Divisors

[App page](https://appshunter.io/ios/app/divisors/id6446118285)

**In-app purchases:** none


## Frequently asked questions

### Is Is it Prime? free?

Is it Prime? is free to download, with no in-app purchases.

### Is Divisors free?

Divisors is free to download, with no in-app purchases.

### Do Is it Prime? or Divisors have ads?

Neither Is it Prime? nor Divisors shows ads.

### Which is updated more often, Is it Prime? or Divisors?

Is it Prime? ships an update every 74 months, and Divisors weekly. Most recently, Is it Prime? was updated on October 23, 2026 and Divisors on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*