# USD AR vs Wollio

The clearest difference is ads: Wollio at none against USD AR's shown. Wollio also leads on update cadence (every 2 months vs every 23 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

USD AR ships an update every 23 months, Wollio every 2 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | USD AR | Wollio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | **Every 2 months** |
| Size | 89 MB | 40 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ewgeniy Isurov](https://appshunter.io/developer/1100100325) | [Wollio Ltd.](https://appshunter.io/developer/1615406033) |

## What reviewers say

### USD AR

[App page](https://appshunter.io/ios/app/usd-ar/id1431725290)

**In-app purchases:** none


### Wollio

[App page](https://appshunter.io/ios/app/wollio/id1615406031)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is USD AR free?

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

### Is Wollio free?

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

### Do USD AR or Wollio have ads?

USD AR shows ads; Wollio does not.

### Which is updated more often, USD AR or Wollio?

USD AR ships an update every 23 months, and Wollio every 2 months. Most recently, USD AR was updated on October 5, 2026 and Wollio on October 7, 2026.

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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.*