# UAS Sentry vs Propagation Tools

The clearest difference is price: UAS Sentry at Free against Propagation Tools's $0.29. UAS Sentry also leads on update cadence (every 2 months vs every 9 months) and iOS requirement (14.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

UAS Sentry is free to download; Propagation Tools costs $0.29 up front. Neither carries in-app purchases, so what you see is what you pay.

UAS Sentry ships an update every 2 months, Propagation Tools every 9 months. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | UAS Sentry | Propagation Tools |
| --- | --- | --- |
| Price | **Free** | $0.29 |
| Rating | **[2.6 (5 ratings)](https://appshunter.io/ios/app/uas-sentry/id1670544405/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free | — |
| Size | 3 MB | 1 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vintage Slots of Colorado, Inc](https://appshunter.io/developer/380724433) | [Jeff Curtis](https://appshunter.io/developer/358219019) |

## What reviewers say

### UAS Sentry

[App page](https://appshunter.io/ios/app/uas-sentry/id1670544405)

This application displays nearby drones when connected to a specific receiver. It also enables configuration of the companion UAS Sentry Remote ID Receiver. Without the receiver, no drones will be visible.

**Highlights:** View nearby drones, Configure UAS Sentry Receiver, Requires companion hardware, Drone detection interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Propagation Tools

[App page](https://appshunter.io/ios/app/propagation-tools/id6446221936)

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

**In-app purchases:** none


## Frequently asked questions

### Is UAS Sentry free?

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

### Is Propagation Tools free?

Propagation Tools costs $0.29, with no in-app purchases.

### Do UAS Sentry or Propagation Tools have ads?

Neither UAS Sentry nor Propagation Tools shows ads.

### Which is updated more often, UAS Sentry or Propagation Tools?

UAS Sentry ships an update every 2 months, and Propagation Tools every 9 months. Most recently, UAS Sentry was updated on October 23, 2026 and Propagation Tools on October 27, 2026.

---

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