Comparison

FieldSense Inspector vs Subsurface Maps Offline

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

Head to head
About

FieldSense Inspector

Features
Read full description

Inspector is a field-service mobile app that connects to Honeywell meters over the EnergyAxis or SynergyNet 900 MHz mesh network. The app pairs with a BeltClip radio module, using Bluetooth Low Energy for the mobile link and the 900 MHz mesh for meter communications. Inspector streamlines RF troubleshooting, meter reads, and configuration tasks such as verifying RF connectivity, locating nearby nodes, and collecting signal-strength diagnostics. With the appropriate authorization from a system administrator, field personnel can: - Sync with a Metercat Server to receive user-specific settings and meter data - Execute configured meter functions (for example, ping nodes, locate registered devices, read meters) - Securely upload field-collected readings and logs back to the Metercat Server

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.

Screenshots

FieldSense Inspector4 screens
Subsurface Maps Offline3 screens

Verdict

The call

FieldSense Inspector and Subsurface Maps Offline are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

FieldSense Inspector ships an update every 5 weeks, Subsurface Maps Offline every 4 weeks. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.

ScorecardNo meaningful differences
FieldSense Inspector versus Subsurface Maps Offline: the parameters behind the verdict, then further details
ParameterFieldSense InspectorSubsurface Maps Offline
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 5 weeksEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.315.0 — better
Further details — not scored
Size40 MB81 MB
Age rating4+4+
DeveloperHoneywell International, Inc.Ben Hill

In-app purchases

None

FieldSense Inspector

No in-app purchases

None

Subsurface Maps Offline

No in-app purchases

Questions

Is FieldSense Inspector free?
FieldSense Inspector is free to download, with no in-app purchases.
Is Subsurface Maps Offline free?
Subsurface Maps Offline is free to download, with no in-app purchases.
Do FieldSense Inspector or Subsurface Maps Offline have ads?
Neither FieldSense Inspector nor Subsurface Maps Offline shows ads.
Which is updated more often, FieldSense Inspector or Subsurface Maps Offline?
FieldSense Inspector ships an update every 5 weeks, and Subsurface Maps Offline every 4 weeks. Most recently, FieldSense Inspector was updated on September 23, 2026 and Subsurface Maps Offline on September 16, 2026.

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