Aviation app
ReleasedFuel Planner
Cross-country fuel planning that answers the question EFBs can't.
Overview
A general-aviation trip fuel planner for iOS, Android and Linux desktop. Toggle which stops you buy fuel at and the whole trip recomputes at once — cost, fuel burned, and the minimum reserve margin across every leg — then save the variants and compare them side by side.
What it does
- Whole-trip, not leg-by-leg
- EFBs plan each leg in isolation. Fuel Planner answers "what if I fuel at B instead of C?" for the entire route in one recompute.
- Cheapest plan search
- Searches every combination of fuel stops — and how much to buy at each — keeps only the plans that hold reserve on every leg, and picks the lowest total cost.
- The departure airport counts
- Enter what's already in the tank plus the price at home base. Uplift tops you to full and charges only the difference — fuel aboard is never bought twice.
- Minimum margin as the headline
- The smallest reserve margin across all legs says whether the whole plan works. Negative anywhere and it's flagged, in the summary and on the chart.
- Wind triangle solved per leg
- Enter TAS, course and wind and the app solves for groundspeed, with an optional climb allowance and weight-effect-on-burn model.
- .fpl import
- Paste a Garmin or ForeFlight flight plan to prefill the route. Waypoints and coordinates come across; speeds and prices stay deliberate.
Built with
- Flutter
- Dart
- iOS
- Android
- Linux desktop
Worth knowing
Honest about the optimiser
The cheapest plan optimises fuel cost and nothing else — not ramp fees, FBO hours, or that one field closing at sunset. A stop with no price entered is never selected, because a missing price is unknown, not free.
Honest about scale
Above seven fuellable stops the exhaustive search stops being interactive, so it switches to a greedy search, labels the result "Optimal (good)", and tells you.
Interested in Fuel Planner?
Ask about availability, licensing, or having something similar built for your own domain.
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Genus
Game
Puzzles you solve by reasoning, not by memorising — where the surface itself is the problem.
Crosswind AI
AI platform
Run your own models, on your own hardware, with no data leaving the building.