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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, plus .lchz on iOS) 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 produces physics-based planning estimates from the aircraft profile and the mission and environmental inputs you provide, with a return-home reserve already built in. We don't publish a validated field-accuracy percentage. What it can't see in advance: a sudden gust, a battery aging faster than its cycle count suggests, the way you actually fly. Treat the rings and the leg-by-leg verdict as planning guidance with margin built in, and keep your own on top. It's how we fly with it, too. (The model is patent-pending, a provisional has been filed, and it ships in this operator app; there is no published field-validation study yet. Patent-pending status is a factual filing status, not evidence of accuracy or validation.)

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 (there are quick-start templates so you're not starting from scratch) and RangeSight produces a custom profile that behaves like any built-in one. If you've flown some test flights, fine-tune calibration lets you nudge the predictions toward what you actually measured.

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, plus .lchz on iOS), 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.

Because wind doesn't affect every direction the same way. Flying downwind, your ground speed is higher and the trip out is cheaper, but you fight a headwind coming back. RangeSight accounts for that asymmetry on every bearing, so the envelope stretches in the direction of the wind and pulls in against it. That's the real shape of your safe-return range; a circle would be a simplification.

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.