# IOTuning vs Volta Power USA

The clearest difference is update cadence: IOTuning at every 2 months against Volta Power USA's every 15 months. Volta Power USA's advantage is iOS requirement (11.0 vs 15.2). 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.

IOTuning ships an update every 2 months, Volta Power USA every 15 months. The most recent releases landed on September 12, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | IOTuning | Volta Power USA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 15 months |
| Size | 5 MB | 73 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [IOTuning GmbH](https://appshunter.io/developer/1622403581) | [Nprc TV LLC](https://appshunter.io/developer/1625759668) |

## What reviewers say

### IOTuning

[App page](https://appshunter.io/ios/app/iotuning/id1622403579)

**In-app purchases:** none


### Volta Power USA

[App page](https://appshunter.io/ios/app/volta-power-usa/id6630366386)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IOTuning free?

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

### Is Volta Power USA free?

Volta Power USA is free to download, with no in-app purchases.

### Do IOTuning or Volta Power USA have ads?

Neither IOTuning nor Volta Power USA shows ads.

### Which is updated more often, IOTuning or Volta Power USA?

IOTuning ships an update every 2 months, and Volta Power USA every 15 months. Most recently, IOTuning was updated on September 12, 2026 and Volta Power USA on September 20, 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.*