# Biopower Security vs School Signals

The clearest difference is in-app purchases: School Signals at none against Biopower Security's 1. Biopower Security's advantage is update cadence (every 3 weeks vs every 9 months). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Biopower Security against 5.0 for School Signals. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Biopower Security ships an update every 3 weeks, School Signals every 9 months. The most recent releases landed on October 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Biopower Security | School Signals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/biopower-security/id1601918430/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/school-signals/id6738840008/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 11 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Wehr Biopower LLC](https://appshunter.io/developer/1601904964) | [School Signals LLC](https://appshunter.io/developer/1782525642) |

## 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 |


### School Signals

[App page](https://appshunter.io/ios/app/school-signals/id6738840008)

Facilitates seamless communication between parents and schools. Receive important updates, schedule meetings, and manage school events all within a secure platform. Stay informed and involved in your child's education with real-time notifications.

**Highlights:** Receive school announcements, Sign up for parent-teacher conferences, RSVP for school events, Volunteer opportunities, Customizable forms, Real-time notifications, Optional SMS alerts

**In-app purchases:** none


## Frequently asked questions

### Is Biopower Security free?

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

### Is School Signals free?

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

### Which has better reviews, Biopower Security or School Signals?

Biopower Security and School Signals are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Biopower Security or School Signals have ads?

Neither Biopower Security nor School Signals shows ads.

### Which is updated more often, Biopower Security or School Signals?

Biopower Security ships an update every 3 weeks, and School Signals every 9 months. Most recently, Biopower Security was updated on October 27, 2026 and School Signals on October 12, 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.*