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RangeSight is a preflight mission-performance analysis app for drone operators. Its flagship Mission Analysis Map (part of RangeSight Pro, free for 14 days) uses RangeIQ+ to evaluate an imported route (.csv, .wpml, .gpx, .kml, .kmz) leg by leg and show expected battery, return margin, modeled mission result, and the segment that needs the most attention. The path is risk-coloured on the map. There is also a free, quick Range Analysis Map (run by the on-device RangeIQ engine) that draws how far you can fly in any direction from a launch point and still get back, even offline. It ships with 31 pre-configured drone profiles across five manufacturers, all free, plus a Custom Drone Builder (Pro), one-tap live weather (Pro), offline map packs (Pro) and more.

RangeSight has two engines. RangeIQ is the on-device one: it computes a modeled range envelope at configured reserve tiers with physics-based propulsion models, factoring in your drone's specs, current battery state, conditions (wind, gusts, temperature, humidity), payload and battery aging, and draws the wind-shaped range rings of the Range Analysis Map, colour-coded green, yellow, and red at the outer edge. RangeIQ+ is the cloud sibling that powers the Mission Analysis Map: it takes a full planned route and evaluates it leg by leg, including a return-home check at every waypoint, and returns an overall mission verdict: Mission Complete, Mission Marginal, or Cannot Complete Mission. Same physics, applied to a whole mission rather than a single launch point. These colours and verdicts are modeled classifications relative to the configured mission, model inputs, and reserve assumptions; they are not flight authorization, certification, or a guarantee of actual flight outcome.

A static battery percentage doesn't account for real-world flight physics: wind makes your ground speed (and power draw) different outbound vs. inbound, cold cuts capacity, payload adds drag, and older packs hold less. RangeSight models those forces, so instead of one number you get a wind-shaped envelope (the Range Analysis Map) or a leg-by-leg verdict on the actual route you plan to fly (the Mission Analysis Map).

RangeIQ and RangeIQ+ estimate performance from the selected aircraft profile, mission inputs, and reserve settings. How closely estimates match a flight depends on the aircraft configuration, battery condition, weather, and how it is flown. Pro includes fine-tune calibration using observed flight performance; compare estimates with additional flights under representative conditions. We do not publish a field-validated accuracy percentage. Use the results as planning guidance alongside current observations and your own operating margin.

Partly. The Range Analysis Map (the quick reachability check, run by the on-device RangeIQ engine) works fully offline, results in under a second, and Pro users can download offline map packs ahead of time (by country and state/province; JPG, PNG and WebP tiles). The Mission Analysis Map (a RangeSight Pro feature) calls the cloud RangeIQ+ engine, so the leg-by-leg analysis needs a connection. The live-weather fetch (also Pro) needs one too, and falls back to manual entry. In short, planning a mission and running the quick range check both work offline; the full leg-by-leg analysis needs one.

31 pre-built profiles across DJI (23), Autel Robotics (4), Skydio (1), Parrot (2) and Freefly (1), all free to every user. Each profile includes flight-performance specs, operational weather limits and payload capacity. See the full list →

Pro includes the Custom Drone Builder: enter your aircraft's weight, battery capacity, flight time, and cruise speed, or start with a quick-start template. Fine-tune calibration uses observed flight performance to adjust Range Analysis and Mission Analysis estimates. Compare the resulting estimates with additional flights under representative conditions.

Free gives you the Range Analysis Map (the quick, offline range check on the on-device RangeIQ engine), mission-file import (.csv, .wpml, .gpx, .kml, .kmz), the interactive map, manual weather entry and all 31 drone profiles, no account. RangeSight Pro adds the leg-by-leg Mission Analysis Map (leg-by-leg mission-performance analysis on RangeIQ+), one-tap live weather, the Custom Drone Builder, payload weight support, offline map packs, fine-tune calibration and saved home locations. Pro is free for 14 days, then $12.99/month or $99/year. Compare plans →

The Mission Analysis Map is the headline view, part of RangeSight Pro (free for 14 days). You import the mission, and the cloud RangeIQ+ engine evaluates it leg by leg: expected battery and return margin segment by segment, a return-home check at every waypoint, the flight path risk-coloured on the map. It needs a connection (it calls RangeIQ+). The Range Analysis Map is the free, quick companion: pick a launch point, and the on-device RangeIQ engine draws the wind-shaped, return-safe rings showing how far you can fly in any direction and still get home with reserve. It works offline. RangeIQ+ is also available to developers through the Noxdren API on noxdren.com.

Wind affects outbound and return legs differently. Flying downwind, ground speed is higher on the way out, but the return leg faces a headwind, and the slow leg costs more time than the fast leg saves. So the return rings pull in along the wind, upwind and downwind alike, and reach farthest across it. The one-way maximum has no return leg, so it reaches farthest downwind. Changing the wind changes the modeled reach and return margin; the display remains an estimate based on the selected inputs.

No. RangeSight works with no sign-up. For the free Range Analysis Map, your planning data, drone selections, battery parameters, payload, saved locations, and preferences stay on your device. Running the Pro Mission Analysis Map sends the mission inputs required for that analysis to our servers. Read the privacy policy →

Yes, RangeSight runs on iPhone and iPad (iOS/iPadOS 26.2+) and on Android phones and tablets (Android 7.0+). The map view in particular benefits from the larger screen.

Manage or cancel in your App Store or Google Play account settings, it stays active until the end of the current billing period. To restore a purchase on a new device, sign in to the same store account, open RangeSight and use “Restore purchases” in the app's settings. Billing is handled entirely by Apple/Google in your local currency.