# SmartgridOne vs Voltmasters App

The clearest difference is update cadence: Voltmasters App at every 10 days against SmartgridOne's every 2 months. 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.

SmartgridOne ships an update every 2 months, Voltmasters App every 10 days. The most recent releases landed on August 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SmartgridOne | Voltmasters App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 29 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eniris](https://appshunter.io/developer/1616177363) | [Voltmasters](https://appshunter.io/developer/1734393714) |

## What reviewers say

### SmartgridOne

[App page](https://appshunter.io/ios/app/smartgridone/id1616177361)

**In-app purchases:** none


### Voltmasters App

[App page](https://appshunter.io/ios/app/voltmasters-app/id6769758012)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartgridOne free?

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

### Is Voltmasters App free?

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

### Do SmartgridOne or Voltmasters App have ads?

Neither SmartgridOne nor Voltmasters App shows ads.

### Which is updated more often, SmartgridOne or Voltmasters App?

SmartgridOne ships an update every 2 months, and Voltmasters App every 10 days. Most recently, SmartgridOne was updated on August 19, 2026 and Voltmasters App on September 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*