# OMMO Smart vs Voltisia

OMMO Smart and Voltisia are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

OMMO Smart ships an update every 2 months, Voltisia every 4 months. Both last shipped on September 18, 2026.

## The numbers

| Metric | OMMO Smart | Voltisia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 101 MB | 89 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Energy Control Cloud Technology Co., Ltd](https://appshunter.io/developer/1765046101) | [ECO GREEN ENERGY LIMITED](https://appshunter.io/developer/1874850924) |

## What reviewers say

### OMMO Smart

[App page](https://appshunter.io/ios/app/ommo-smart/id6743222651)

**Features:** macOS Compatibility

**In-app purchases:** none


### Voltisia

[App page](https://appshunter.io/ios/app/voltisia/id6756776975)

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

**In-app purchases:** none


## Frequently asked questions

### Is OMMO Smart free?

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

### Is Voltisia free?

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

### Do OMMO Smart or Voltisia have ads?

Neither OMMO Smart nor Voltisia shows ads.

### Which is updated more often, OMMO Smart or Voltisia?

OMMO Smart ships an update every 2 months, and Voltisia every 4 months. Most recently, OMMO Smart was updated on September 18, 2026 and Voltisia on September 18, 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.*