# Orion Sentry vs Motion Alert Audio

The clearest difference is in-app purchases: Motion Alert Audio at none against Orion Sentry's 2. Motion Alert Audio also leads on iOS requirement (15.6 vs 18.5). Orion Sentry's advantage is update cadence (weekly vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Orion Sentry sells 2 in-app purchases, starting at $0.99 per month. Motion Alert Audio asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Orion Sentry against 5.0 for Motion Alert Audio. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Orion Sentry ships an update weekly, Motion Alert Audio every 3 months. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Orion Sentry | Motion Alert Audio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/orion-sentry/id1594469593/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/motion-alert-audio/id6499502522/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 14 MB | 38 MB |
| Requires iOS | 18.5 | **15.6** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lithium ehf](https://appshunter.io/developer/1583999127) | [Dino Solano](https://appshunter.io/developer/1687878080) |

## What reviewers say

### Orion Sentry

[App page](https://appshunter.io/ios/app/orion-sentry/id1594469593)

Receive instant alerts on your iPhone when your Mac's security is breached. Browse and save motion-triggered photos stored in iCloud through a clean interface. This free companion app enhances your Mac's security system.

**Highlights:** Instant alarm alerts on iPhone, Browse motion-triggered photos, Save security photos to iPhone, Clean, modern interface, Free to use

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Orion Sentry Pro Monthly | $0.99 | per month |
| Orion Sentry Pro (Forever) | $9.99 | one-time |


### Motion Alert Audio

[App page](https://appshunter.io/ios/app/motion-alert-audio/id6499502522)

Transform your iPhone into a home security hub with instant audio alerts for motion and lights. This app uses your home WiFi for private and secure monitoring, offering customizable sounds and a dark screen mode for nighttime use.

**Highlights:** Customizable audio notifications, Dark screen mode, Easy setup, Home WiFi operation, Motion and light activation alerts

**In-app purchases:** none


## Frequently asked questions

### Is Orion Sentry free?

Orion Sentry is free to download, with in-app purchases available.

### Is Motion Alert Audio free?

Motion Alert Audio is free to download, with no in-app purchases.

### Which has better reviews, Orion Sentry or Motion Alert Audio?

Orion Sentry and Motion Alert Audio are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Orion Sentry or Motion Alert Audio have ads?

Neither Orion Sentry nor Motion Alert Audio shows ads.

### Which is updated more often, Orion Sentry or Motion Alert Audio?

Orion Sentry ships an update weekly, and Motion Alert Audio every 3 months. Most recently, Orion Sentry was updated on October 24, 2026 and Motion Alert Audio on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*