Nimble Preflight app icon
CLOSED BETA — 2026

Nimble Preflight

The professional pilot's companion.

Weather, NOTAMs, hazards, route briefing and flight watch — in one fast, cockpit-dark app. Designed by an active airline captain, built on official sources, and engineered to keep working when the signal doesn't.

OFFLINE-FIRST RAW DATA — BYTE-FOR-BYTE iOS & ANDROID
Pilot Dashboard — every module on one grid
MODULE // DASHBOARD
Your entire preflight, one tap deep.

Watchlist, hazards map, route brief, flight watch, NOTAMs, weather charts and a full pilot toolkit — every module on one grid, laid out for the way pilots actually scan a screen.

Airports Watchlist grouped by country with raw METARs and NOTAM counts
MODULE // WATCHLIST
Every airport you care about, one glance.

Group your stations by country and scan raw METARs with NOTAM counts for every field. A data-age stamp tells you exactly how fresh — or how old — your picture is. Honest data, at all times.

Airport detail — raw METAR/TAF with runway wind analysis
MODULE // AIRPORT WX
Raw data. Zero paraphrase.

METAR and TAF arrive byte-for-byte, exactly as published — with decoded fields and computed runway wind components right beside the raw text. And when there is no data, it says "no data". Never a placeholder.

Watchmap — route with hazard overlays and timeline
MODULE // WATCHMAP
Every hazard on your route — on a timeline.

SIGMETs and advisories drawn as live overlays across your saved route and watchlist. Scrub the timeline to see what's active now, at departure, or when you arrive.

Brief ROUTE — great-circle corridor with airports and FIRs
MODULE // BRIEF
A corridor briefing in seconds.

Enter departure, destination and alternates: great-circle track, corridor airports and crossed FIRs — reviewable on the map and exportable as a clean PDF for your flight bag.

Flight Watch — live flight progress tracking
MODULE // FLIGHT WATCH
Follow the flight, gate to gate.

Track company traffic with live progress and calculated estimates, powered by official Flightradar24 data — including a persistent card that keeps watch from your lock screen.

Plus a full pilot toolkit.

The calculators and decoders you actually use on the line — built in, and working offline.

SNOWTAM DECODER TANKERING & FUEL UPLIFT COLD-TEMP CORRECTION ACN / PCN WIND COMPONENTS LIMITATION OF THE DAY SIGWX / WIND-TEMP / SATELLITE ECMWF RAIN ANIMATION NOTAM & FIR FILTERS VOLMET DIRECTORY NOTES & .NPF BACKUP UNIT CONVERTER
// THE OFFLINE MODEL

Built for the moment the signal drops.

Everything you've loaded stays readable with no connection — watchlist weather, NOTAMs, charts, briefings and notes. Coverage ends. Your briefing doesn't.

Fly the beta.

A small group of professional pilots is shaping v1 right now. Want in?

Request beta access →

For situational awareness only. Nimble Preflight is not an Electronic Flight Bag and not a certified weather source. Always rely on official briefings, company documentation and ATC for operational decisions.

Data sources
NOAA FAA Deutscher Wetterdienst (DWD) ECMWF Flightradar24