Comparison

Subsurface Maps Offline vs NX Control

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

Head to head
About

Subsurface Maps Offline

Access and edit your maps offline on your iOS device. Download maps from the cloud, make changes, and mark new points. Sync your edits back to the cloud for team access.

Highlights
  • Download maps for offline use
  • View and edit map features
  • Mark new points
  • Sync changes to the cloud
  • Turn map layers on/off
Read full description

Subsurface Maps Offline is an app that allows existing Subsurface Maps users to download their maps from the cloud to their iOS device for use offline. Using this app you can view your map, turn layers on and off, make changes to any feature, and mark new points. Then when you are back at the office you can use the "Sync" button to upload your changes to the Subsurface Maps cloud where they will be accessible to the rest of your team. The regular browser-based Subsurface Maps application is still the flagship product where you must go to create layers, change colors, modify your field layout, draw lines, etc. The offline app is a less functional version that allows you to do basic data collection and viewing offline. How it works 1. These instructions assume you already have a Subsurface Maps account. 2. Install this app on your tablet or phone. 3. Run the app and enter your Subsurface Maps user name and password. 4. Select which map(s) you want to download to your phone/tablet. 5. Open your map, view it, make changes, add new points, etc. 6. When you are ready to upload your changes click Menu, then click Offline Maps, then click the 'Sync' button next to your map name. This will upload your edits and download any changes that others have made.

About

NX Control

This application transforms your iPhone or iPad into a control and display for GSSI NX-series ground penetrating radar systems. It allows for live data collection, in-field interpretation with target marking and calibration, and project organization with photo attachments.

Highlights
  • Live 2D radar profiles
  • Quick Scan for single-line collection
  • Target marking with distance/depth
  • Depth calibration
  • Gain tuning
  • Project organization
  • Attach photos to scans
Read full description

NX Control turns your iPhone or iPad into the display and control surface for GSSI NX-series ground penetrating radar systems. Requires a compatible NX-series unit — the app cannot collect data on its own. COLLECT - Live 2D radar profiles with distance and depth scales - Quick Scan for immediate single-line collection - Survey wheel or time-based triggering INTERPRET IN THE FIELD - Place target marks and read exact distance and depth - Calibrate depth by fitting a hyperbola to a known target - Tune gain automatically or by hand, with a live gain curve - Background removal, scan detail, and boost filters ORGANIZE - Group scans into projects and areas of interest - Attach photos to document what you found

Screenshots

Subsurface Maps Offline3 screens
NX Control4 screens

Verdict

The call

Subsurface Maps Offline and NX Control are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Subsurface Maps Offline against 5.0 for NX Control. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

ScorecardNo meaningful differences
Subsurface Maps Offline versus NX Control: the parameters behind the verdict, then further details
ParameterSubsurface Maps OfflineNX Control
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 4 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size81 MB18 MB
Age rating4+4+
DeveloperBen HillGSSI Geophysical Survey Systems, Inc.

Customer experience

Subsurface Maps Offline

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

NX Control

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Subsurface Maps Offline

No in-app purchases

None

NX Control

No in-app purchases

Questions

Is Subsurface Maps Offline free?
Subsurface Maps Offline is free to download, with no in-app purchases.
Is NX Control free?
NX Control is free to download, with no in-app purchases.
Which has better reviews, Subsurface Maps Offline or NX Control?
Subsurface Maps Offline and NX Control are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Subsurface Maps Offline or NX Control have ads?
Neither Subsurface Maps Offline nor NX Control shows ads.

Other comparisons