# VOLT vs Diff Master

The clearest difference is in-app purchases: Diff Master at none against VOLT's 1. Diff Master also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. VOLT sells 1 one-off in-app purchase. Diff Master asks for nothing beyond the download.

## The numbers

| Metric | VOLT | Diff Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Size | 1 MB | 47 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [torankirite](https://appshunter.io/developer/1883564850) | [BINIX LTD](https://appshunter.io/developer/6805793628) |

## What reviewers say

### VOLT

[App page](https://appshunter.io/ios/app/volt-logic-circuit-puzzle/id6791114276)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


### Diff Master

[App page](https://appshunter.io/ios/app/diff-master-spot-differences/id6805793626)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VOLT free?

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

### Is Diff Master free?

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

### Do VOLT or Diff Master have ads?

Neither VOLT nor Diff Master 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.*