# VOLTAJ vs Ersun Optik

The clearest difference is iOS requirement: VOLTAJ at 11.0 against Ersun Optik's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | VOLTAJ | Ersun Optik |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 66 MB | 30 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Cumali Aydogdu](https://appshunter.io/developer/1859645981) | [Nirvana Yazılım](https://appshunter.io/developer/1640695884) |

## What reviewers say

### VOLTAJ

[App page](https://appshunter.io/ios/app/voltaj/id6756267730)

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

**In-app purchases:** none


### Ersun Optik

[App page](https://appshunter.io/ios/app/ersun-optik/id6761750077)

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

**In-app purchases:** none


## Frequently asked questions

### Is VOLTAJ free?

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

### Is Ersun Optik free?

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

### Do VOLTAJ or Ersun Optik have ads?

Neither VOLTAJ nor Ersun Optik 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.*