NMPP Operations vs Subsurface Maps Offline
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NMPP Operations
This app facilitates mutual aid requests by connecting users with a coordinator for equipment and personnel needs. It also allows for quick reporting of system outages and notification of municipal generation operations to stakeholders.
- Mutual aid request submission
- Direct contact with coordinator
- System outage reporting
- Generation notification
- Resource tracking
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For mutual aid requests this will allow the user to contact the NMPP Mutual Aid Coordinator either via a phone call or by submitting a request. In a circumstance where the user does not have time to specify what equipment and personnel they specifically need, they can explain it to the coordinator. When they do use the submittal request, the coordinator will know what resources to locate prior to reaching back out to the community in need. For those who experience a system outage in their community, they will be able to quickly report this with one touch of a button and the application will pass along the location of the outage to the necessary individuals. This will allow NMPP personnel to track these events and complete the necessary follow up steps. The Generation Notification selection allows the user to notify NMPP and TEA that they are operating their municipal generation and why they are doing so. This communication provides the necessary notice so stakeholders can make adjustments to day ahead and real time operations and so steps can be taken to ensure environmental tracking and financial settlements are performed.
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.
- Download maps for offline use
- View and edit map features
- Mark new points
- Sync changes to the cloud
- Turn map layers on/off
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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
Verdict
The clearest difference is update cadence: Subsurface Maps Offline at every 4 weeks against NMPP Operations's every 10 months. On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for NMPP Operations against 5.0 for Subsurface Maps Offline. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
NMPP Operations ships an update every 10 months, Subsurface Maps Offline every 4 weeks. The most recent releases landed on September 29, 2026 and September 16, 2026 respectively.
| Parameter | NMPP Operations | Subsurface Maps Offline |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 10 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 110 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Nebraska Municipal Power Pool | Ben Hill |
Customer experience
NMPP Operations
Subsurface Maps Offline
In-app purchases
NMPP Operations
No in-app purchases
Subsurface Maps Offline
No in-app purchases
Questions
Is NMPP Operations free?
Is Subsurface Maps Offline free?
Which has better reviews, NMPP Operations or Subsurface Maps Offline?
Do NMPP Operations or Subsurface Maps Offline have ads?
Which is updated more often, NMPP Operations or Subsurface Maps Offline?
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