# Sensory Volta vs World

The clearest difference is in-app purchases: Sensory Volta at none against World's 2. Sensory Volta also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. World sells 2 in-app purchases, starting at $1.99 per month. Sensory Volta asks for nothing beyond the download.

## The numbers

| Metric | Sensory Volta | World |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 months |
| Size | 7 MB | 147 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sensory App House Ltd](https://appshunter.io/developer/1361994084) | [Olga Ivanova](https://appshunter.io/developer/1733570435) |

## What reviewers say

### Sensory Volta

[App page](https://appshunter.io/ios/app/sensory-volta/id6757521283)

**In-app purchases:** none


### World

[App page](https://appshunter.io/ios/app/world-flags/id6758343689)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| flags_by_oliva_subscription | $1.99 | per month |
| flags_by_oliva_donation | $1.99 | one-time |


## Frequently asked questions

### Is Sensory Volta free?

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

### Is World free?

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

### Do Sensory Volta or World have ads?

World shows ads; Sensory Volta 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.*