# Trivia Tornado vs Goldbach conjecture

The clearest difference is in-app purchases: Goldbach conjecture at none against Trivia Tornado's 2. Trivia Tornado's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Trivia Tornado sells 2 in-app purchases, starting at $2.99 per month. Goldbach conjecture asks for nothing beyond the download.

## The numbers

| Metric | Trivia Tornado | Goldbach conjecture |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 34 months | — |
| Size | 4 MB | 1 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [OANA RINALDI](https://appshunter.io/developer/1709880614) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Trivia Tornado

[App page](https://appshunter.io/ios/app/trivia-tornado/id6475680743)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tornado Plus Monthly | $2.99 | per month |
| Tornado Plus Yearly | $19.99 | per year |


### Goldbach conjecture

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

**In-app purchases:** none


## Frequently asked questions

### Is Trivia Tornado free?

Trivia Tornado is free to download, with in-app purchases available.

### Is Goldbach conjecture free?

Goldbach conjecture 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.*