# VOLTRAC Battery vs Deka Duration

The clearest difference is iOS requirement: VOLTRAC Battery at 11.0 against Deka Duration's 13.0. 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 | VOLTRAC Battery | Deka Duration |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 21 MB | 25 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [应刚 郑](https://appshunter.io/developer/1446858821) | [MK Battery](https://appshunter.io/developer/6793419722) |

## What reviewers say

### VOLTRAC Battery

[App page](https://appshunter.io/ios/app/voltrac-battery/id1613895105)

**Features:** macOS Compatibility

**In-app purchases:** none


### Deka Duration

[App page](https://appshunter.io/ios/app/deka-duration/id6793419720)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VOLTRAC Battery free?

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

### Is Deka Duration free?

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

### Do VOLTRAC Battery or Deka Duration have ads?

Neither VOLTRAC Battery nor Deka Duration 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.*