Comparison

Gargoyle Sentinel vs PreFlight 107

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Gargoyle Sentinel

Features
Read full description

Sentinel by Gargoyle Systems is your window into the low-altitude skies. Built for homeowners, enterprises, and security providers, Sentinel connects to the Gargoyle rooftop node network to deliver real-time insights, alerts, and data on drone activity in your area. Features: • Live Drone Detection: See drone activity around your location in real time. • Smart Notifications: Get alerts when drones enter your monitored airspace. • Interactive Map: View coverage zones and nearby Gargoyle nodes. • Decentralized Network: Powered by Gargoyle’s rooftop hardware and blockchain incentives, providing privacy-first, community-driven coverage. • Secure Data Layer: Monitor not just threats, but also emerging aerial infrastructure like deliveries and autonomous flight paths. With Sentinel, you’re not just observing the skies you’re helping build the next layer of infrastructure for secure, scalable, and autonomous air travel.

About

PreFlight 107

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
Read full description

PreFlight 107 is the ultimate drone flight-planning app for recreational drone pilots and FAA Part 107 certified remote pilots. Check live LAANC authorization, decoded aviation hazards, drone weather, and airspace maps — all before you fly. Generate tamper-evident Mission Briefing PDFs that hold up to FAA scrutiny. Whether you fly for fun or run a commercial UAV operation, PreFlight 107 gives you the safety tools and situational awareness to fly confidently and stay FAA compliant. NEW — NOW IN SPANISH: Switch the entire app to Español anytime in Settings. Ahora disponible en español. Try Pro+ free for 7 days — unlock Mission Briefings, white-label client PDFs, recurring briefings, and every Pro tool, free for a week. Cancel anytime. DECISION SUPPORT Fly Now Score — one 0–100 go/no-go score from wind, gusts, ceiling, visibility, hazards, and airspace. Tap to see exactly why. (Free) Density Altitude — know when hot, high, or humid air cuts your drone's climb power and flight time. (Free) AI Risk Assessment — an instant AI go/no-go read with plain-English reasoning. 3 free previews; unlimited with Pro+. AIRSPACE & SAFETY Live LAANC grid overlay showing authorized flight ceilings Real-time TFR alerts and aviation hazards Decoded PIREPs, SIGMETs, and AIRMETs within 50 nm Nearby airport awareness circles Live ADS-B traffic radar — see manned aircraft in your area WEATHER Hyper-local drone weather at your exact GPS location Wind speed, gusts, direction, cloud cover, visibility, and ceiling METAR/TAF data from nearby stations 15-day forecast for trip planning PART 107 COMPLIANCE Part 107 currency tracker with 90/30/7-day recurrent reminders Compliance reminders — alerts before your insurance or FAA registration expires FAA ID Vault for certificate and registration numbers Insurance policy tracking Auto-Evidence PDF — one-tap FAA inquiry packet combining pilot cert, weather, airspace, and insurance FLIGHT LOGGING & HANGAR Log every flight with date, location, duration, and notes Flying Insights — your hours by month, the conditions you fly in, per-aircraft stats, and a shareable Year in Flying recap (Pro) Track your drone fleet in the Hangar — 70+ models across DJI, Autel, Skydio, Parrot, and FPV Server-stamped Depart/Land logging with METAR snapshot at flight time Smart battery estimates that adjust to weather Export-ready records for Part 107 compliance PLANNING TOOLS Live Observer Link — share a live link that updates your conditions, airspace, and TFRs in real time while you fly (Pro+), or send a one-time location snapshot (Pro) Night Ops Mode — sunset countdown with anti-collision-light verification checklist MAP Mapbox-powered interactive airspace map Class B/C/D airspace rings Restricted, Prohibited, and Special Use Airspace overlays Temporary Flight Restriction overlays PRO unlocks the advanced tools: 15-day forecast, decoded aviation hazards, Auto-Evidence PDFs, Night Ops Mode, Class B/C/D + TFR + SUA overlays, 3D Wind Tower, METAR/TAF briefings, unlimited flight logs with FAA-format PDF export, voice proximity alerts, AR airspace view (iOS), cloud sync, Apple Wallet pilot card, and a public pilot profile. PRO+ FEATURES Mission Briefings — tamper-evident 6-page PDF with auto-fetched weather, airspace, NOTAMs & hazards AI Morning Brief — your 7 AM & 2 PM briefings, AI-written for your exact location Client Bundle — merge your Mission Briefing and flight report into one client-ready, verifiable PDF Plain-English decode for METAR, TAF, SIGMET, AIRMET, PIREP White-label client mode — your logo and branding on every Mission Briefing PDF Embedded landowner permission form and crew roster Embedded LAANC approval PDF appendix Recurring scheduled briefings — auto-generated and emailed SHA-256 tamper hash — independently verifiable at preflight107.com/verify Note: Informational use only. Always verify airspace and conditions with official FAA sources before flight. Terms of Use: https://preflight107.com/terms

Screenshots

Gargoyle Sentinel4 screens
PreFlight 1074 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Gargoyle Sentinel versus PreFlight 107: the parameters behind the verdict, then further details
ParameterGargoyle SentinelPreFlight 107
PriceFreeFree
Rating—4.6 (12 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—12 — better
Update frequencyEvery 2 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size110 MB83 MB
Age rating4+4+
DeveloperGargoyle Systems, LLCDavid S. Mendez

In-app purchases

None

Gargoyle Sentinel

No in-app purchases

5 purchases

PreFlight 107

Subscriptions5
  • PreFlight 107$9.991 Month
  • Pro+ Founder$14.991 Month
  • Pro+ Monthly7 Days trial$19.991 Month
Show 2 more
  • Yearly Pro)$79.991 Year
  • preflight107_19999_1y7 Days trial$199.991 Year

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.

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