# Goldbach conjecture vs Aetherfold 4D

The clearest difference is in-app purchases: Goldbach conjecture at none against Aetherfold 4D's 10. Aetherfold 4D's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Aetherfold 4D sells 10 in-app purchases, starting at $2.99 per month. Goldbach conjecture asks for nothing beyond the download.

## The numbers

| Metric | Goldbach conjecture | Aetherfold 4D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Daily |
| Size | 1 MB | 421 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [OANA RINALDI](https://appshunter.io/developer/1709880614) |

## What reviewers say

### Goldbach conjecture

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

**In-app purchases:** none


### Aetherfold 4D

[App page](https://appshunter.io/ios/app/aetherfold-4d-the-lost-weave/id6812213342)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weaver’s Circle · Monthly | $2.99 | per month |
| Weaver’s Circle · Yearly | $14.99 | per year |
| 3 Threads of Light | $0.99 | one-time |
| The Astral Concord | $1.99 | one-time |
| 10 Threads of Light | $1.99 | one-time |
| The Mycelial Dream | $1.99 | one-time |
| The Solstice Courts | $1.99 | one-time |
| The Vesper Horologium | $1.99 | one-time |
| The Cinder Dominion | $1.99 | one-time |
| The Rimebound Crown | $1.99 | one-time |


## Frequently asked questions

### Is Goldbach conjecture free?

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

### Is Aetherfold 4D free?

Aetherfold 4D is free to download, with in-app purchases available.

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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.*