# AR Volt Meter vs A

The clearest difference is in-app purchases: AR Volt Meter at none against A's 1. AR Volt Meter also leads on iOS requirement (12.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. A sells 1 one-off in-app purchase. AR Volt Meter asks for nothing beyond the download.

## The numbers

| Metric | AR Volt Meter | A |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 77 MB | 271 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ATSUSHI INAGAKI](https://appshunter.io/developer/1670043302) | [Ogumo Co., Ltd.](https://appshunter.io/developer/1289277557) |

## What reviewers say

### AR Volt Meter

[App page](https://appshunter.io/ios/app/ar-volt-meter/id1670043300)

**Features:** macOS Compatibility

**In-app purchases:** none


### A

[App page](https://appshunter.io/ios/app/a-physics-mechanics/id6670272249)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide ads | $5.99 | one-time |


## Frequently asked questions

### Is AR Volt Meter free?

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

### Is A free?

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

### Do AR Volt Meter or A have ads?

Neither AR Volt Meter nor A shows ads.

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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.*