# Goldbach conjecture vs Alpi

The clearest difference is device support: Alpi at 4 against Goldbach conjecture's —. Alpi also leads on iOS requirement (11.0 vs 16.0). On price and in-app purchases 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 | Goldbach conjecture | Alpi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Size | 1 MB | 294 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | — | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Karl Hofer](https://appshunter.io/developer/393604233) |

## What reviewers say

### Goldbach conjecture

[App page](https://appshunter.io/ios/app/goldbach-conjecture/id6627338523)

**In-app purchases:** none


### Alpi

[App page](https://appshunter.io/ios/app/alpi/id6738397648)

**In-app purchases:** none


## Frequently asked questions

### Is Goldbach conjecture free?

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

### Is Alpi free?

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

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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.*