# Gargoyle Sentinel vs PreFlight 107

The clearest difference is in-app purchases: Gargoyle Sentinel at none against PreFlight 107's 5. PreFlight 107's advantage is ads (none vs shown) and update cadence (every 9 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PreFlight 107 sells 5 in-app purchases, starting at $9.99 per month. Gargoyle Sentinel asks for nothing beyond the download.

Gargoyle Sentinel ships an update every 2 months, PreFlight 107 every 9 days. The most recent releases landed on August 21, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Gargoyle Sentinel | PreFlight 107 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (12 ratings)](https://appshunter.io/ios/app/preflight-107/id6760437132/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 110 MB | 83 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gargoyle Systems, LLC](https://appshunter.io/developer/1830723387) | [David S. Mendez](https://appshunter.io/developer/1823249129) |

## What reviewers say

### Gargoyle Sentinel

[App page](https://appshunter.io/ios/app/gargoyle-sentinel/id6749488575)

**Features:** macOS Compatibility

**In-app purchases:** none


### PreFlight 107

[App page](https://appshunter.io/ios/app/preflight-107/id6760437132)

This app helps drone pilots plan flights and ensure FAA compliance. It provides real-time weather, airspace information, and hazard alerts. Generate official flight logs and mission briefings for safe and legal drone operations.

**Highlights:** Live LAANC authorization, Drone weather and airspace maps, AI risk assessment, Tamper-evident mission briefings, Part 107 compliance tools, Flight logging and hangar management, ADS-B traffic radar

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PreFlight 107 | $9.99 | per month |
| Pro+ Founder | $14.99 | per month |
| Pro+ Monthly | $19.99 | per month |
| Yearly Pro) | $79.99 | per year |
| preflight107_19999_1y | $199.99 | per year |


## Frequently asked questions

### Is Gargoyle Sentinel free?

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

### Is PreFlight 107 free?

PreFlight 107 is free to download, with in-app purchases available.

### Do Gargoyle Sentinel or PreFlight 107 have ads?

Gargoyle Sentinel shows ads; PreFlight 107 does not.

### Which is updated more often, Gargoyle Sentinel or PreFlight 107?

Gargoyle Sentinel ships an update every 2 months, and PreFlight 107 every 9 days. Most recently, Gargoyle Sentinel was updated on August 21, 2026 and PreFlight 107 on September 5, 2026.

---

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