# GeoViewer from Extensis

> Mobile geospatial viewer for raster, vector, and WMS imagery with measurement tools. (iPhone/iPad app by Extensis.)

- Source: https://appshunter.io/ios/app/geoviewer-from-extensis/id482113617 (this page in markdown: same URL + `.md`)
- Developer: [Extensis](https://appshunter.io/developer/731629365)
- Category: Productivity
- Price: Free with in-app purchases
- Rating: 4.00/5 from 1 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 32 MB
- Languages: American English
- Released: 2012-01-17
- Data updated: 2026-06-06
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/geoviewer-from-extensis/id482113617/reviews.md

## What is GeoViewer from Extensis?

The makers of MrSID bring you the fastest way to view MrSID imagery on the go. View raster, vector, and WMS imagery easily and take advantage of measurement tools, online base maps, and more.

Here are just some of the features of the best geospatial viewer for iPhone, iPad, and iPod Touch:

 • View MrSID and JPEG 2000 imagery.
 • View vector imagery in the Esri Shapefile and KML formats.
 • Connect to Dropbox to view your saved imagery.
 • View online base maps.
 • Save favorite locations as bookmarks.
 • Change the opacity of layers to compare overlapping images.
 • Select the image bands that you want to view for multispectral images.
 • Measure distances.

Additionally, here are some of the exciting features available via a single in-app purchase:

 • Display WMS imagery.
 • Measure areas.
 • Search for locations using addressing information.
 • Change the map's projection to additional supported projections.
 • Track your current location on the map. 

Continued use of GPS running in the background can dramatically decrease battery life.

LizardTech is now Extensis.

## Key features

- View MrSID and JPEG 2000 imagery
- View vector imagery (Shapefile, KML)
- Connect to Dropbox for imagery
- Online base maps
- Save favorite locations
- Measure distances
- Measure areas (in-app purchase)

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| WMS Support | $4.99 | one-time |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/geoviewer-from-extensis/id482113617/reviews.md

### 1/5 — Local Files

*2023-06-26*

You cannot view files that are stored locally on device. You need to use itunes to load imagery onto device.

### 4/5 — Great app but needs tweaking

*2015-07-13*

Please update to display point shapefiles correctly and increase the limit of points allowed per file. Ability to change color of tracking icon would be great too 

I use this app daily and love it. It just needs a few tweeks to be perfect👏

### 2/5 — Needs work

*2015-04-24*

Needs work to display shape files correctly.

### 2/5 — Difficult to load images

*2013-11-08*

Love using sid images but just to difficult to load images on iOS version. Need integration into other apps for storage and loading.

### 3/5 — Needs improvement

*2012-12-17*

I Love using LizardTech products on my home computer, however this app is so confusing I can't seem to even open any SID files because SID files as you all may know are way over 1GB. I would think about having some sort of way to connect to Dropbox or some other website to have access to rather than taking up space on my iPad. I would also consider adding videos for those newbies like me.

### 3/5 — Need to be able to get shape info

*2012-04-04*

Love the app, but need the ability to click on a shape and get a popup with the data about the shape/point (ie, address, desc, street location, etc).  Otherwise, great job....can't wait for more updates.

## Frequently asked questions about GeoViewer from Extensis

### What types of imagery can GeoViewer display?

GeoViewer can display MrSID and JPEG 2000 raster imagery, as well as vector imagery in Esri Shapefile and KML formats. It also supports WMS imagery through an in-app purchase.

### Does GeoViewer have ads?

No, GeoViewer does not contain advertisements. The app is free to download and use, with optional features available via a single in-app purchase.

### What devices is GeoViewer compatible with?

GeoViewer is compatible with iPhone, iPad, and iPod Touch devices. It is designed for mobile use on Apple's iOS platform.

### How often is GeoViewer updated?

The latest version of GeoViewer is 3.0.4, which was last updated on October 1, 2018. While updates have not been frequent recently, the app has been available since 2012.

### What are the benefits of the in-app purchase for GeoViewer?

The in-app purchase unlocks advanced features such as displaying WMS imagery, measuring areas, searching locations by address, changing map projections, and tracking your current location on the map.

### Can I use my own imagery files with GeoViewer?

Yes, you can view your saved imagery by connecting GeoViewer to your Dropbox account. This allows for easy access to your personal geospatial files on the go.

### What is the user sentiment for GeoViewer?

GeoViewer has a rating of 4.0 stars from one rating. This indicates a generally positive reception from its users, though more ratings would provide a broader perspective.

### Does GeoViewer offer offline capabilities?

The description does not explicitly state offline capabilities for all features. However, viewing saved imagery from Dropbox and using base maps may require an internet connection.

## Version history (last 5 releases)

### 3.0.4 — 2018-10-01

LizardTech is now Extensis.

### 3.0.3 — 2017-12-02

• Dropbox is now only supported on iOS 9 and newer
• Fixed a bug that crashed the app on some older versions of iOS

### 3.0.2 — 2017-09-16

• Option to view shapefiles over 100000 points
• Added additional projections
• Fixed a bug that crashed the application when loading old project versions

### 3.0.1 — 2017-07-18

• Improved vector file rendering
• Improved Dropbox support, you will need to reauthorize the App for Dropbox access.

### 3.0 — 2015-02-06

• Dropbox support
 • Online base maps
 • Bookmarks
 • Layer opacity
 • Dynamic range stretching for 16-bit images
 • Address search (with an in-app purchase)
 • Area measurement (with an in-app purchase)
 • Location tracking (with an in-app purchase)
 • Changing the map's projection. By default, images can be viewed in their native projection, WGS 84, or Web Mercator. (Selecting other supported projections requires an in-app purchase.)

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## More apps by Extensis

- [Portfolio Flow®](https://appshunter.io/ios/app/portfolio-flow/id731629362)
- [Fontspiration](https://appshunter.io/ios/app/fontspiration/id930147513)
- [GeoViewer Pro from Extensis](https://appshunter.io/ios/app/geoviewer-pro-from-extensis/id1457128708)

All apps by Extensis: https://appshunter.io/developer/731629365

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*