# Millennium Problems vs p

The clearest difference is iOS requirement: Millennium Problems at 15.0 against p's 18.6. 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.

## The numbers

| Metric | Millennium Problems | p |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/millennium-problems/id6761263693/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | Free | — |
| Size | 9 MB | 3 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Loic Fonkam](https://appshunter.io/developer/1884693208) | [PracticallyZen, LLC](https://appshunter.io/developer/1833874358) |

## What reviewers say

### Millennium Problems

[App page](https://appshunter.io/ios/app/millennium-problems/id6761263693)

Explore seven unsolved mathematical mysteries, each with a million-dollar prize. This app adapts content for all skill levels, from middle schoolers to doctoral researchers, with interactive 3D visualizations and built-in quizzes. Learn at your own pace, offline, with no ads or subscriptions.

**Highlights:** Explains seven major unsolved math problems, Content adapts to skill level (Grade 6 to Graduate), Interactive 3D visualizations, Built-in quizzes with XP and badges, Offline functionality, Optional biometric lock

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### p

[App page](https://appshunter.io/ios/app/p-adelic/id6764312694)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Millennium Problems free?

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

### Is p free?

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

### Do Millennium Problems or p have ads?

Neither Millennium Problems nor p shows ads.

---

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