Comparison

Emlid Flow vs Proceq GPR Subsurface

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

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.

Highlights
  • Subsurface 3D imaging
  • Utility line detection
  • As-built map verification
  • Real-time Augmented Reality visualization
  • On-site data annotation
  • Cloud-based collaboration and export
Read full description

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

Emlid Flow4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Emlid Flow versus Proceq GPR Subsurface: the parameters behind the verdict, then further details
ParameterEmlid FlowProceq GPR Subsurface
PriceFreeFree
Rating3.9 (37 ratings)5.0 (3 ratings) — better
Positive reviews55.0% of reviews — better50.0% of reviews
Number of ratings37 — better3
Update frequencyEvery 10 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad — betteriPad
Requires iOS16.016.0
Further details — not scored
Size205 MB1.1 GB
Age rating4+4+
DeveloperEmlid Tech Kft.Screening Eagle Technologies

Customer experience

Emlid Flow

All ratings36 ratings
Positive72.2%
Neutral5.6%
Negative22.2%
Written reviews20 reviews
Positive55.0%
Neutral15.0%
Negative30.0%

Proceq GPR Subsurface

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

1 purchases

Emlid Flow

Subscriptions1
  • Pro Plan Individual Monthly1 Month trial$24.991 Month
None

Proceq GPR Subsurface

No in-app purchases

Questions

Is Emlid Flow free?
Emlid Flow is free to download, with in-app purchases available.
Is Proceq GPR Subsurface free?
Proceq GPR Subsurface is free to download, with no in-app purchases.
Which has better reviews, Emlid Flow or Proceq GPR Subsurface?
Proceq GPR Subsurface is rated higher. Emlid Flow averages 3.9 out of 5 from 37 ratings, while Proceq GPR Subsurface averages 5.0 from 3 ratings.
Do Emlid Flow or Proceq GPR Subsurface have ads?
Neither Emlid Flow nor Proceq GPR Subsurface shows ads.
Which is updated more often, Emlid Flow or Proceq GPR Subsurface?
Emlid Flow ships an update every 10 days, and Proceq GPR Subsurface every 3 months. Most recently, Emlid Flow was updated on October 29, 2026 and Proceq GPR Subsurface on September 15, 2026.

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