# Biopower Security vs Soyokaze

The clearest difference is rating: Biopower Security at 5.0 against Soyokaze's 3.0. Biopower Security also leads on iOS requirement (15.0 vs 26.0). Soyokaze's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 3 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Biopower Security sells 1 in-app purchase, starting at $0.99 per month. Soyokaze asks for nothing beyond the download.

Biopower Security holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Biopower Security ships an update every 3 weeks, Soyokaze every 5 days. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Biopower Security | Soyokaze |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/biopower-security/id1601918430/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/soyokaze/id6738971639/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 20 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 9+ | 17+ |
| Developer | [Wehr Biopower LLC](https://appshunter.io/developer/1601904964) | [Noriaki Watanabe](https://appshunter.io/developer/1783214214) |

## What reviewers say

### Biopower Security

[App page](https://appshunter.io/ios/app/biopower-security/id1601918430)

This app enhances personal safety by allowing users to build a trusted network for real-time emergency alerts and location sharing. It facilitates quick contact with emergency services and designated contacts, alongside secure encrypted chat for communication.

**Highlights:** Trusted network for emergency alerts, Real-time location sharing, Direct call to emergency services, Encrypted chat communication, Customizable safety settings, Community support features

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Security Network Subscription | $0.99 | per month |


### Soyokaze

[App page](https://appshunter.io/ios/app/soyokaze/id6738971639)

A minimalist social networking client designed for low data consumption. It focuses on core functionalities, providing a streamlined experience for users prioritizing efficiency.

**Highlights:** Lightweight design, Minimal data usage, Essential features only, Streamlined social networking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Biopower Security free?

Biopower Security is free to download, with in-app purchases available.

### Is Soyokaze free?

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

### Which has better reviews, Biopower Security or Soyokaze?

Biopower Security is rated higher. Biopower Security averages 5.0 out of 5 from 2 ratings, while Soyokaze averages 3.0 from 1 ratings.

### Do Biopower Security or Soyokaze have ads?

Neither Biopower Security nor Soyokaze shows ads.

### Which is updated more often, Biopower Security or Soyokaze?

Biopower Security ships an update every 3 weeks, and Soyokaze every 5 days. Most recently, Biopower Security was updated on October 2, 2026 and Soyokaze on October 9, 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.*