# Entrigy Shield vs Battery Train

The clearest difference is ads: Entrigy Shield at none against Battery Train's shown. Entrigy Shield also leads on update cadence (every 9 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Entrigy Shield ships an update every 9 days, Battery Train every 2 months. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Entrigy Shield | Battery Train |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 50 MB | 24 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Grzegorz Rakoca](https://appshunter.io/developer/1778459428) | [JAEMIN LEE](https://appshunter.io/developer/1787329213) |

## What reviewers say

### Entrigy Shield

[App page](https://appshunter.io/ios/app/entrigy-shield/id6762854850)

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

**In-app purchases:** none


### Battery Train

[App page](https://appshunter.io/ios/app/battery-train/id6780470432)

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

**In-app purchases:** none


## Frequently asked questions

### Is Entrigy Shield free?

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

### Is Battery Train free?

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

### Do Entrigy Shield or Battery Train have ads?

Battery Train shows ads; Entrigy Shield does not.

### Which is updated more often, Entrigy Shield or Battery Train?

Entrigy Shield ships an update every 9 days, and Battery Train every 2 months. Most recently, Entrigy Shield was updated on October 18, 2026 and Battery Train on October 14, 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.*