# Orion Sentry vs Field Technician App

The clearest difference is in-app purchases: Field Technician App at none against Orion Sentry's 2. Field Technician App also leads on iOS requirement (13.0 vs 18.5). Orion Sentry's advantage is update cadence (every 9 days vs every 2 months). On price, ads and device support there is nothing between them.

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

Orion Sentry ships an update every 9 days, Field Technician App every 2 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Orion Sentry | Field Technician App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/orion-sentry/id1594469593/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 26 MB |
| Requires iOS | 18.5 | **13.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lithium ehf](https://appshunter.io/developer/1583999127) | [eBest-IoT](https://appshunter.io/developer/1162585559) |

## What reviewers say

### Orion Sentry

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

This companion app provides instant alerts for triggered alarms on your Mac. Browse and save motion-triggered photos stored in iCloud through a clean interface. It requires the desktop version and an iCloud account.

**Highlights:** Instant alarm alerts, 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 |


### Field Technician App

[App page](https://appshunter.io/ios/app/field-technician-app/id6448693812)

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

**In-app purchases:** none


## Frequently asked questions

### Is Orion Sentry free?

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

### Is Field Technician App free?

Field Technician App is free to download, with no in-app purchases.

### Do Orion Sentry or Field Technician App have ads?

Neither Orion Sentry nor Field Technician App shows ads.

### Which is updated more often, Orion Sentry or Field Technician App?

Orion Sentry ships an update every 9 days, and Field Technician App every 2 months. Most recently, Orion Sentry was updated on November 7, 2026 and Field Technician App on November 7, 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.*