# BugPlanetEra vs The Prime Number Finder

The clearest difference is update cadence: The Prime Number Finder at every 3 days against BugPlanetEra's every 5 months. BugPlanetEra's advantage is iOS requirement (13.0 vs 26.0). 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.

BugPlanetEra ships an update every 5 months, The Prime Number Finder every 3 days. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | BugPlanetEra | The Prime Number Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/the-prime-number-finder/id6741829020/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | — | Free |
| Size | 2 MB | 1 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Khan Kao](https://appshunter.io/developer/1119938868) | [Alexander Lee](https://appshunter.io/developer/1795808485) |

## What reviewers say

### BugPlanetEra

[App page](https://appshunter.io/ios/app/bugplanetera/id1492067649)

**Features:** macOS Compatibility

**In-app purchases:** none


### The Prime Number Finder

[App page](https://appshunter.io/ios/app/the-prime-number-finder/id6741829020)

This app is a powerful tool for exploring prime numbers, offering instant primality checks, factorization, and navigation through prime sequences. It features an interactive interface with dark mode and offline functionality, perfect for students, teachers, and math enthusiasts.

**Highlights:** Check if a number is prime, Get prime factorization, Navigate to next/previous primes, Interactive factors, Dark mode support, Offline functionality, History tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BugPlanetEra free?

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

### Is The Prime Number Finder free?

The Prime Number Finder is free to download, with no in-app purchases.

### Do BugPlanetEra or The Prime Number Finder have ads?

Neither BugPlanetEra nor The Prime Number Finder shows ads.

### Which is updated more often, BugPlanetEra or The Prime Number Finder?

BugPlanetEra ships an update every 5 months, and The Prime Number Finder every 3 days. Most recently, BugPlanetEra was updated on October 26, 2026 and The Prime Number Finder on October 21, 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.*