Easy to read
Large UTC values and clear information at a glance.
About Flying
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Tools for pilots
Flying tools, without the cockpit clutter.
Time calculations, crew rest planning, and sunrise and sunset estimates—built for pilots and available offline.
Offline-firstNo accountUTC native
Purpose-built
Flight math, made simple.
Focused iPhone tools for UTC, Crew Rest, and Sunrise & Sunset. Everything runs on-device, with no account or calculation server required.
Built around flight
Workflows reflect the information pilots already have.
Works offline
Core calculations stay available without connectivity.
The app
Three focused toolsets. One consistent workflow.
Crew Rest
Crew Rest
A rest plan the whole crew can read at a glance.
About Flying builds the rest schedule, keeps the active block visible and makes handover simple with QR sharing.
- 3-pilot, 4-pilot and split-rest patterns
- Live active-rest countdown
- QR import and sharing
Time Tools
Time Tools
Arithmetic without mental gymnastics.
Move between time zones, calculate durations and work with 24-hour clock values from one focused toolset. Everything important stays large, legible and close at hand.
- Time Zone, Duration and Clock modes
- Get important timings instantly
- Designed for quick one-handed use
Sunrise & Sunset
Sunrise & Sunset
See the light events your flight will actually encounter.
Estimate dawn, sunrise, sunset, and dusk with proprietary calculations just by entering your route. A simple flight timeline keeps the sequence clear from takeoff to landing.
- Route or Waypoint calculations
- Altitude-adjusted solar estimates
- No more searching ahead for sunrise or sunset
Privacy by design
Your calculations stay on your iPhone.
Time, Crew Rest, and Sunrise & Sunset calculations run locally. The app requires no account, and support or crash information is submitted only after you choose to send it.
On-device calculationsNo app account requiredUser-initiated reports
Read the privacy policy