# Regalgrid Installer vs Energy Save

The clearest difference is iOS requirement: Regalgrid Installer at 12.2 against Energy Save's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Regalgrid Installer ships an update every 3 weeks, Energy Save monthly. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Regalgrid Installer | Energy Save |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 53 MB | 30 MB |
| Requires iOS | **12.2** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Regalgrid Europe S.R.L.](https://appshunter.io/developer/1585658504) | [ES Energy Save Holding AB](https://appshunter.io/developer/1704282398) |

## What reviewers say

### Regalgrid Installer

[App page](https://appshunter.io/ios/app/regalgrid-installer/id1457160971)

**Features:** macOS Compatibility

**In-app purchases:** none


### Energy Save

[App page](https://appshunter.io/ios/app/energy-save/id6639618381)

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

**In-app purchases:** none


## Frequently asked questions

### Is Regalgrid Installer free?

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

### Is Energy Save free?

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

### Do Regalgrid Installer or Energy Save have ads?

Neither Regalgrid Installer nor Energy Save shows ads.

### Which is updated more often, Regalgrid Installer or Energy Save?

Regalgrid Installer ships an update every 3 weeks, and Energy Save monthly. Most recently, Regalgrid Installer was updated on October 25, 2026 and Energy Save on October 22, 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.*