Emlid Flow vs Proceq GPR Subsurface
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Emlid Flow
Manage Emlid Reach receivers and perform positioning tasks like data collection and mapping. Offers free and pro plans for various survey workflows, with cloud sync and team collaboration features.
- Receiver management (base/rover setup)
- RTK/PPK configuration
- Point collection and stakeout
- Import/export various file formats
- Coordinate system library
- Cloud sync with Emlid Flow 360
- Team collaboration
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Emlid Flow is a companion app for Emlid Reach receivers, designed to manage devices and handle all your positioning tasks in one place. The app has Free and Pro plans for a wide range of applications, from ground control point collection to topographic mapping and earthworks. What you get with the free version: - Full control of your receivers: set up base and rover, update, configure RTK and PPK. - Point collection and stakeout. - Import/Export CSV, DXF, KML, or Shapefile files. - Built-in coordinate system library with over 1000 systems. - Ability to create custom coordinate systems. - Base shift. - Cloud sync with Emlid Flow 360. - Team collaboration with up to 10 members. Emlid Flow 360 is the web platform where you can access all data from the app and vice versa! Sync works instantly, allowing you to prepare, manage, and export projects in the office without manual file transfers and even with the receiver at hand. For more advanced survey workflows, Emlid Flow offers Pro Plan: - Collect and stakeout lines and polygons. - Stakeout reports and collect rules for accuracy control. - Survey codes to better differentiate data. - DTM support. - Auto collection tool to free your hands. - Inverse & Traverse for geometry calculations. - Team collaboration with an unlimited number of members. And much more with continuous updates! Try Pro Plan with a 30-day trial available on all platforms. Terms of use: https://emlid.com/legal/#apps-terms Privacy Policy: https://emlid.com/legal/#privacy
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.
Screenshots
Verdict
The clearest difference is rating: Proceq GPR Subsurface at 5.0 against Emlid Flow's 3.9. Proceq GPR Subsurface also leads on in-app purchases (none vs 1). Emlid Flow's advantage is update cadence (every 10 days vs every 3 months) and ratings volume (37 vs 3). On price, review sentiment, ads and monetization model 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. Emlid Flow sells 1 in-app purchase, starting at $24.99 per month. Proceq GPR Subsurface asks for nothing beyond the download.
Proceq GPR Subsurface holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Emlid Flow has 37 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 55% of Emlid Flow's written reviews are positive against 50% of Proceq GPR Subsurface's, so the app with the better star average is not the one people write more warmly about.
Emlid Flow ships an update every 10 days, Proceq GPR Subsurface every 3 months. The most recent releases landed on October 29, 2026 and September 15, 2026 respectively.
| Parameter | Emlid Flow | Proceq GPR Subsurface |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (37 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 55.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 37 — better | 3 |
| Update frequency | Every 10 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 205 MB | 1.1 GB |
| Age rating | 4+ | 4+ |
| Developer | Emlid Tech Kft. | Screening Eagle Technologies |
Customer experience
Emlid Flow
Proceq GPR Subsurface
In-app purchases
Emlid Flow
- Pro Plan Individual Monthly1 Month trial$24.991 Month
Proceq GPR Subsurface
No in-app purchases
Questions
Is Emlid Flow free?
Is Proceq GPR Subsurface free?
Which has better reviews, Emlid Flow or Proceq GPR Subsurface?
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