NOSIG: METAR TAF Route Weather
Enroute alternates & SIGMETs
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Every alternate along your route with its METAR and the TAF for when you pass it. Now with today's flights, METAR history and shareable routes.
NOSIG shows the weather for every airport along your route, timed for when you pass it.
Enter departure, destination, ETD and cruise level. NOSIG draws the route, finds every airport with scheduled service within 100, 140 or 180 NM of it and shows each one's METAR and the TAF cut to the moment you are abeam. Departure and destination use your ETD and ETA. Drag the route to follow your flight plan, and share it with a link.
Load your route before you push back: weather, SIGMETs, pilot reports, NAT tracks and SIGWX charts are kept on the phone and stay usable in airplane mode, always with their age shown.
FREE
• Route with a corridor of enroute alternates, including take-off and destination alternates beyond the ends
• Airports coloured VFR, MVFR, IFR or LIFR from their latest METAR
• Airport card: raw and decoded METAR and TAF, the part in force at your time highlighted, runway wind, runway diagram, sunrise and sunset, your own notes
• SIGMET areas on the map, drawn with ICAO symbols
• WAFS high and medium level SIGWX charts, saved for offline use
• North Atlantic organised tracks
• Nearest airports (NRST), favourite airports and a home screen widget for your homebase METAR
• Share a route with a link that opens it in NOSIG
• Metric or U.S. units, light and dark, abbreviations explained in the app
NOSIG PRO
• Today's flights: every sector of your day with departure, destination and alternate weather for its own times
• METAR history: the last 12 hours of reports and whether the weather is getting better or worse
• Your minima: ceiling, visibility and crosswind limits checked for ETA ±1 h; alternates below them get a red ring
• The times your route enters and leaves each SIGMET area
• Pilot reports (PIREP, AIREP) of moderate and severe turbulence and icing, worldwide
• Briefing PDF and saved routes
• GPS position, track and ground speed on the map
• Boeing and Airbus navigation-display themes
NOSIG Pro is a monthly or yearly subscription with a free first week. Payment is charged to your Apple Account when the free week ends. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; manage or cancel it in your account settings.
DATA
METAR, TAF, SIGMETs, pilot reports and SIGWX charts: NOAA Aviation Weather Center (aviationweather.gov), SIGWX issued by WAFC Washington. NAT tracks: FAA. Airports and runways: OurAirports. FIR boundaries: VATSpy Data Project.
NOSIG is for situational awareness. It is not an official briefing and not for navigation; always use your operator's briefing and the latest official information.
No account, no ads, no tracking.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://nosigapp.com/privacy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Today: enter every sector of your day once and see departure, destination and alternate weather for each one at its own times, checked against your minima (NOSIG Pro)
• METAR history: the last 12 hours of reports on the airport card and whether the weather is getting better or worse (NOSIG Pro)
• Share a route: send a link to a colleague and it opens the same route in NOSIG
• Favourite airports with their latest METAR on the new Today tab
• Sunrise, sunset and day or night at your time on every airport card
• NOSIG Pro: a free first week, then monthly or yearly. If you used NOSIG before this version, NOSIG Pro stays free for you. Thank you!
The developer, Ata Sarp Etikan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ata Sarp Etikan
- Size
- 74.3 MB
- Category
- Weather
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- NOSIG Pro Yearly $19.99
- NOSIG Pro Monthly $2.99
- Copyright
- © 2026 Ata Sarp Etikan