DroneScout pro vs Foundation Squaring Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DroneScout pro
Transform your phone into a drone radar to detect nearby drones using RemoteID/DRI technology. View drone details, save flight paths, and get enhanced airspace awareness. Premium features offer notifications, historical data, and advanced map options.
- Drone detection via Bluetooth/WLAN
- Map display of drone locations
- View drone details and flight paths
- Save flight paths to GPX
- Notifications for detected drones (premium)
- Historical detection data (premium)
- Multiple map providers and layers (premium)
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See which drones are flying around you. DroneScout detects drones that broadcast Remote ID — also known as OpenDroneID or DRI — over Bluetooth and Wi-Fi, and shows them live on a map. For each detected drone you get its position and flight path, altitude and height, speed and direction, serial number, operator ID, UAS type and operation description, plus the pilot's location whenever the drone broadcasts it. REMOTE ID, IN SHORT Remote ID is a digital licence plate for drones: the aircraft broadcasts who and where it is, directly over Bluetooth or Wi-Fi. It is mandatory for most new drones above 250 g in the United States (FAA) and the European Union (EASA), with comparable rules in Japan, Singapore and China. DroneScout implements the open OpenDroneID standards ASTM F3411 and ASD-STAN EN 4709-002 over Bluetooth Legacy, Bluetooth Long Range S8, Wi-Fi Beacon and Wi-Fi NaN. It also receives China's national Remote ID standard GB 46750-2025. FREE • Live detection and tracking of nearby drones • Live map with drone and pilot position • Full broadcast detail: serial number, operator, altitude, speed, direction • Brand identification • Export a flight track to GPX SILVER • Notification when a new drone is detected nearby • Flight history, stored on your phone and searchable later • Model identification: over 300 brands and over 400 drone models recognised • Detailed drone info tab, no banner GOLD — everything in Silver, plus • Extra map providers and layers: normal, satellite, terrain • Offline maps (MBTiles) • Label drones with your own names • Group drones and write notes per drone PLATINUM — everything in Gold, plus • Push detections to your own server, to CalTopo, or to the Drone Radar network • ADS-B: nearby manned aircraft alongside drones, via a local GDL 90 receiver, with network ADS-B as fallback PLEASE READ BEFORE BUYING Remote ID was designed on the assumption that an ordinary smartphone could receive it. On Apple hardware, that assumption fails outright: no iPhone or iPad, on any model, can receive Bluetooth Long Range S8, and iOS does not let any app — ours or anyone else's — scan for Wi-Fi Beacon frames at all. This is a platform restriction, not a defect in the app: without an accessory, an iPhone's realistic ceiling is Bluetooth Legacy, a small minority of real-world Remote ID broadcasts. China's GB 46750-2025 standard mandates exactly the two transports Apple blocks — Bluetooth Long Range S8 and Wi-Fi Beacon — while leaving Bluetooth Legacy optional. Many GB 46750 drones transmit Bluetooth Legacy anyway, so an iPhone or iPad without Bridge can often still see a good share of them — just not a guaranteed one. Our affordable optional DroneScout Bridge receiver sidesteps all of that: it listens on Bluetooth Legacy, Bluetooth Long Range S8, Wi-Fi Beacon and Wi-Fi NaN on 2.4 GHz, and on 5 GHz too on the higher Bridge models — including drones that broadcast Remote ID only on 5 GHz, such as Skydio — then rebroadcasts everything as plain Bluetooth Legacy, which your iPhone and iPad receive normally, no Wi-Fi radio required on the phone's side. Range up to 2 km. PRIVACY Detections stay on your device. Nothing is uploaded unless you enable a server integration yourself. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Privacy policy: https://dronescout.pro/privacy/ Terms of Use (EULA): https://dronescout.pro/eula/ Website: https://dronescout.co/app
Foundation Squaring Calculator
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Get the corners right before you pour. Enter your length and width and the app gives you the diagonal a square layout has to measure — in feet and inches to the nearest 1/16", or in meters. Pull both corner-to-corner measurements, type them in, and it tells you whether you're square and exactly how far to move a corner if you aren't. WHAT IT DOES • REQUIRED DIAGONAL — the measurement both corner-to-corner pulls must match. Shown as a tape reading (14' 1 11/16") and as a decimal, plus perimeter for your string line and enclosed area. • OFF-SQUARE FIX — enter the two diagonals you actually measured and get a straight answer: which diagonal is long, and how far to draw a corner in to bring the layout square. Move one corner the full amount, or split it between both ends. No guessing, no trial and error. • L-SHAPED FOOTPRINTS — describe the overall size and the cut-out corner. The app splits the footprint into two rectangles and gives you a diagonal for each, plus a confirmation shot to the inside corner so you know the notch landed right. Rotate the drawing to match what's staked on the ground. • YOUR TOLERANCE — decide what counts as square: 1/16", 1/8", 1/4", 1/2", or 1–12 mm. Tight formwork and a garage pad don't need the same standard. BUILT FOR THE JOB SITE • Feet-and-inches entry with real fractions — type 1 11/16, or 11/16, or 1.5 • Round results to 1/8", 1/16", or 1/32" to match the tape in your pocket • Full metric mode • Scale drawings that show which way the layout leans and which diagonal to pull • Large, high-contrast numbers; light and dark themes • Your measurements are still there when you come back to the phone • Works with no signal — every calculation runs on the phone, so a basement or a rural lot is fine • In English and Spanish WHO IT'S FOR Concrete and foundation crews, framers, deck and shed builders, fence and post-hole layout, landscapers setting patios and pads, and anyone who has ever pulled a diagonal twice and gotten two different numbers. THE MATH A rectangle is square when both diagonals equal the square root of length squared plus width squared — the 3-4-5 rule, generalized to any size. When the diagonals disagree, the layout has racked into a parallelogram, and the exact correction is the long diagonal minus that target. For small errors this comes out to the familiar "half the difference" rule of thumb, but it stays correct when a layout is badly out. Layout guidance only. Always confirm critical dimensions against the stamped drawings and your local code before you pour. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: DroneScout pro at Free against Foundation Squaring Calculator's $4.99. Foundation Squaring Calculator's advantage is in-app purchases (none vs 3) and update cadence (weekly vs every 2 weeks). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
DroneScout pro is free to download; Foundation Squaring Calculator costs $4.99 up front. DroneScout pro sells 3 in-app purchases, starting at $2.99 per month. Foundation Squaring Calculator asks for nothing beyond the download.
DroneScout pro ships an update every 2 weeks, Foundation Squaring Calculator weekly. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.
| Parameter | DroneScout pro | Foundation Squaring Calculator |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 3.7 (12 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 61 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | BlueMark Innovations BV | Alexander Riggs |
In-app purchases
DroneScout pro
- Silver package monthly$2.991 Month
- Gold package$5.991 Month
- Platinum package$9.991 Month
Foundation Squaring Calculator
No in-app purchases
Questions
Is DroneScout pro free?
Is Foundation Squaring Calculator free?
Do DroneScout pro or Foundation Squaring Calculator have ads?
Which is updated more often, DroneScout pro or Foundation Squaring Calculator?
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