# Kansas 811 vs Subsurface Maps Offline

The clearest difference is rating: Subsurface Maps Offline at 5.0 against Kansas 811's 3.8. Subsurface Maps Offline also leads on update cadence (every 4 weeks vs every 3 months). Kansas 811's advantage is ratings volume (13 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Subsurface Maps Offline holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Kansas 811 has 13 ratings behind it against 2, so its average is the more settled of the two.

Kansas 811 ships an update every 3 months, Subsurface Maps Offline every 4 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Kansas 811 | Subsurface Maps Offline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (13 ratings)](https://appshunter.io/ios/app/kansas-811/id1399700287/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/subsurface-maps-offline/id6654924764/reviews)** |
| Number of ratings | **13** | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 36 MB | 81 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [One Call Concepts, Inc.](https://appshunter.io/developer/1279836092) | [Ben Hill](https://appshunter.io/developer/1645876200) |

## What reviewers say

### Kansas 811

[App page](https://appshunter.io/ios/app/kansas-811/id1399700287)

This app allows excavators, homeowners, and facility operators in Kansas to manage locate requests before digging. It provides access to important resources, allows for searching past tickets, and offers news and event updates.

**Highlights:** Manage locate requests, Access resource center, Search submitted tickets, View positive response history, Access online tools, View news and events

**Features:** macOS Compatibility

**In-app purchases:** none


### Subsurface Maps Offline

[App page](https://appshunter.io/ios/app/subsurface-maps-offline/id6654924764)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kansas 811 free?

Kansas 811 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.

### Which has better reviews, Kansas 811 or Subsurface Maps Offline?

Subsurface Maps Offline is rated higher. Kansas 811 averages 3.8 out of 5 from 13 ratings, while Subsurface Maps Offline averages 5.0 from 2 ratings.

### Do Kansas 811 or Subsurface Maps Offline have ads?

Neither Kansas 811 nor Subsurface Maps Offline shows ads.

### Which is updated more often, Kansas 811 or Subsurface Maps Offline?

Kansas 811 ships an update every 3 months, and Subsurface Maps Offline every 4 weeks. Most recently, Kansas 811 was updated on October 14, 2026 and Subsurface Maps Offline on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*