# World Hydrogen Summit vs VigasAPP

The clearest difference is in-app purchases: World Hydrogen Summit at none against VigasAPP's 1. World Hydrogen Summit also leads on ads (none vs shown) and iOS requirement (10.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. VigasAPP sells 1 one-off in-app purchase. World Hydrogen Summit asks for nothing beyond the download.

## The numbers

| Metric | World Hydrogen Summit | VigasAPP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Size | 22 MB | 38 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reed Exhibitions Ltd](https://appshunter.io/developer/540373170) | [Martin Jauregui Pajares](https://appshunter.io/developer/1883203515) |

## What reviewers say

### World Hydrogen Summit

[App page](https://appshunter.io/ios/app/world-hydrogen-summit/id6767046850)

**In-app purchases:** none


### VigasAPP

[App page](https://appshunter.io/ios/app/vigasapp/id6816087472)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $8.99 | one-time |


## Frequently asked questions

### Is World Hydrogen Summit free?

World Hydrogen Summit is free to download, with no in-app purchases.

### Is VigasAPP free?

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

### Do World Hydrogen Summit or VigasAPP have ads?

VigasAPP shows ads; World Hydrogen Summit does not.

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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.*