# Secreterrier vs SJ Battery Pack

The clearest difference is update cadence: SJ Battery Pack at weekly against Secreterrier's every 3 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.

Secreterrier ships an update every 3 months, SJ Battery Pack weekly. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Secreterrier | SJ Battery Pack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/secreterrier/id6777764747/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Size | 34 MB | 45 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Secreterrier](https://appshunter.io/developer/1825875479) | [SJ Battery Pack](https://appshunter.io/developer/6802891354) |

## What reviewers say

### Secreterrier

[App page](https://appshunter.io/ios/app/secreterrier/id6777764747)

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

**In-app purchases:** none


### SJ Battery Pack

[App page](https://appshunter.io/ios/app/sj-battery-pack/id6802891352)

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

**In-app purchases:** none


## Frequently asked questions

### Is Secreterrier free?

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

### Is SJ Battery Pack free?

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

### Do Secreterrier or SJ Battery Pack have ads?

Neither Secreterrier nor SJ Battery Pack shows ads.

### Which is updated more often, Secreterrier or SJ Battery Pack?

Secreterrier ships an update every 3 months, and SJ Battery Pack weekly. Most recently, Secreterrier was updated on November 5, 2026 and SJ Battery Pack on November 6, 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.*