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RangeSight is a drone mission planner. Its flagship view is the Mission Analysis Map (part of RangeSight Pro, free for 14 days): import one (.csv, .kml, .kmz, .gpx), and the cloud RangeIQ+ engine checks it leg by leg, per-segment feasibility, a return-home check at every waypoint, the path 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 calibrated 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 safe round-trip ranges 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, return-safe rings of the Range Analysis Map. 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. Same physics, applied to a whole mission rather than a single launch point.

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).

Very accurate when the inputs are honest, and never a promise. RangeIQ uses physics-based models fed with your aircraft's profile and today's conditions, and every estimate has a return-home reserve already built in. 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 consumer app; there is no published field-validation study yet.)

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. So: planning a mission and the quick range check, offline; the full leg-by-leg analysis, online.

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 calibrated 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, .kml, .kmz, .gpx), the interactive map, manual weather entry and all 31 drone profiles, no account. RangeSight Pro adds the leg-by-leg Mission Analysis Map (the per-waypoint feasibility 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 $4.99/month or $39.99/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: segment-by-segment feasibility, 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 how far you can fly in any direction and still get home with reserve, the wind-shaped, return-safe rings, and it works offline. RangeIQ+ is also available to developers as an 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. Your planning data, drone selections, battery parameters, payload, saved locations, preferences, stays on your device. Read the privacy policy →

Yes, RangeSight runs on iPhone and iPad (iOS 15+) and on Android phones and tablets (Android 8+). 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.