Proceq GPR Subsurface vs Propeller Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proceq GPR Subsurface
This application uses radar technology to create detailed 3D images of underground structures. It helps detect utilities, verify as-built maps, and perform structural investigations with intuitive on-site analysis and cloud collaboration features.
- Subsurface 3D imaging
- Utility line detection
- As-built map verification
- Real-time Augmented Reality visualization
- On-site data annotation
- Cloud-based collaboration and export
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Proceq GPR Subsurface: Powerful sensors with radar beams for subsurface mapping applications. Intelligent software at your fingertips. The mission behind Proceq GPR Subsurface is simple: Scan the underground to provide a clear 3D image of what lies beneath, to detect and map the findings effortlessly and reliably, and to collaborate anywhere, anytime, for utility strike prevention, as-built map verification, structural investigations and various geophysical applications. The revolutionary Proceq GS series is the world’s most advanced subsurface mapping system, equipped with Stepped-Frequency Continuous-Wave (SFCW) technology and precise GNSS positioning. The true-ultrawideband antenna system and Swiss-made, optimized electronics deliver unparalleled resolution and penetration depth - at the same time. The magic starts once you connect the GS9000 or GS8000 wireless to your iPad and fire up the Proceq GPR Subsurface app. The carefully designed user interface increases your productivity by making measurements and analysis simple and intuitive; for example, by switching between top and sectional views with a simple gesture. A rich feature set brings advanced workflows on-site, so that you can get more things done while in the field. See the heatmap of the subsurface form in front of your eyes at the specified depth range, annotate your findings with precise geolocation, tags, photos, voice memos and comments in the logbook. Access and share them with colleagues anywhere, anytime, and export your measurements in one click, in the form of rich reports, the most common CAD/GIS mapping formats, or raw data for further processing, all over the cloud. Detect utility lines and label them accordingly to produce as-built maps, or digitize any other findings on the ground. Get an instant understanding of what is below your feet with the revolutionary Free Path 3D real-time visualization, or superimpose your area scans onto the real world with Augmented Reality - unique features in the industry. Download the free app now and explore the state of the art of subsurface mapping with the included demo files.
Propeller Mobile
This app provides field crews with a mobile 3D site inspection tool. It enables real-time navigation, site checks, and data capture to facilitate faster decision-making and keep projects on track.
- Live navigation
- 3D site mapping
- Media documentation
- Grade checking
- Cut-fill analysis
- Surface area measurement
- Stockpile volumes
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Propeller Mobile is a 3D site inspection app built to keep field crews connected, aligned, and in control. With your job site in your pocket, Propeller Mobile supports real-time navigation, site checks, and reality capture, empowering faster decisions and keeping projects on track. Propeller Mobile also works alongside your AeroPoint hardware, keeping your ground control workflow connected. More than just a map, Propeller Mobile connects every person on-site to the data they need - enabling teams to move faster, collaborate smarter, and drive results. Why Propeller Mobile? • Stay aligned, wherever you are: Turn your mobile device into a powerful site inspection tool to help you map your next move • Eliminate bottle necks: Verify, document, and adjust plans directly from the field to prevent delays and unnecessary office trips • Keep your projects on track: From live navigation to high-accuracy measurements, you’ll translate field data and designs into decisions Key features: • Live navigation: Instantly see your real-time position relative to designs and site features • 3D site mapping: Explore a digital twin of your site in 3D or 2D for informed decision-making • Media documentation: Pin images and 360° photos to the map to document conditions and share with office teams • Alignments: Measure and track your live position along alignments and stations/chainages • Grade checking: Assess grades as degrees, percentages, or ratios • Cut-fill analysis: Compare surfaces to monitor volume changes and progress over time • Point of interest tagging: Drop points to check elevations or add notes for clarity • Surface area measurement: Quickly calculate areas within any shape • Stockpile volumes: Measure stockpile volumes and create reports in seconds • Cross-section analysis: Generate cross-section charts of designs and surveys • Distance measurement: Measure point-to-point distances with precision • Elevation tracking: Monitor elevation changes and height differences • AeroPoint management: Connect to AeroPoint 2 devices via Bluetooth to monitor battery, charging status, firmware, and data upload progress - and configure custom WiFi credentials for seamless field uploads
Screenshots
Verdict
The clearest difference is rating: Proceq GPR Subsurface at 5.0 against Propeller Mobile's 4.2. Proceq GPR Subsurface also leads on review sentiment (50% vs 40%). Propeller Mobile's advantage is update cadence (every 2 weeks vs every 3 months) and monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Proceq GPR Subsurface holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 3 and 10 respectively. Written reviews point the same way: 50% of Proceq GPR Subsurface's written reviews are positive against 40% of Propeller Mobile's.
Proceq GPR Subsurface ships an update every 3 months, Propeller Mobile every 2 weeks. The most recent releases landed on September 15, 2026 and September 13, 2026 respectively.
| Parameter | Proceq GPR Subsurface | Propeller Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.2 (10 ratings) |
| Positive reviews | 50.0% of reviews — better | 40.0% of reviews |
| Number of ratings | 3 | 10 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 1.1 GB | 214 MB |
| Age rating | 4+ | 4+ |
| Developer | Screening Eagle Technologies | Propeller Aerobotics Pty Ltd |
Customer experience
Proceq GPR Subsurface
Propeller Mobile
In-app purchases
Proceq GPR Subsurface
No in-app purchases
Propeller Mobile
No in-app purchases
Questions
Is Proceq GPR Subsurface free?
Is Propeller Mobile free?
Which has better reviews, Proceq GPR Subsurface or Propeller Mobile?
Do Proceq GPR Subsurface or Propeller Mobile have ads?
Which is updated more often, Proceq GPR Subsurface or Propeller Mobile?
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