# Invrida Installer App vs HERF Battery

The clearest difference is update cadence: HERF Battery at every 2 days against Invrida Installer App's every 2 months. HERF Battery also leads on iOS requirement (11.0 vs 15.1). 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.

Invrida Installer App ships an update every 2 months, HERF Battery every 2 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Invrida Installer App | HERF Battery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 59 MB | 94 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [InputDriven](https://appshunter.io/developer/1697149872) | [JUAN WANG](https://appshunter.io/developer/1650350517) |

## What reviewers say

### Invrida Installer App

[App page](https://appshunter.io/ios/app/invrida-installer-app/id6448907864)

**In-app purchases:** none


### HERF Battery

[App page](https://appshunter.io/ios/app/herf-battery/id6476475176)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invrida Installer App free?

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

### Is HERF Battery free?

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

### Do Invrida Installer App or HERF Battery have ads?

Neither Invrida Installer App nor HERF Battery shows ads.

### Which is updated more often, Invrida Installer App or HERF Battery?

Invrida Installer App ships an update every 2 months, and HERF Battery every 2 days. Most recently, Invrida Installer App was updated on October 24, 2026 and HERF Battery on October 25, 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.*