Shapefiles for Chile shows up in North America

“We update de FORESTER GPS GIS II, on iPad from version 1.0.1 to 1.0.2 and we are having issues with the coordinate system when importing a shape file.The shape appears in North América and we are from Chile. We use UTM with Datum WGS84. Is there any suggestion on what can we do. I try this in two different devices with the new version and both have the same problem. When using it in the 1.0.1 version all goes OK.”

Please make sure you have selected the correct UTM Zone.

Please also copy the .prj file for the Shapefiles to the documents folder for Forester GPSGIS II.

What coordinate system do the Shapefiles use? If they are based on WGS 84 LLA, then try setting the Forester GPSGIS II to that coordinate system before importing the Shapefiles. After importing the Shapefiles, then change the coordinate system to UTM WGS84.


Do I need cellular data for the app to work?

We received this question regarding the Deed Calls & Stakeout app, but the answer applies to our other apps as well.

The GPS data collection functions and most of the other functions will work without wi-fi and cellular data.

Some of our apps, like Forester GPS GIS III, Farming GPS GIS III, iCMTGIS III and iCMTGIS PRO will let you load a geo-referenced *.tif map and use it off-line.

Most of our apps provide a Map function to get and display the Map from Apple via wi-fi connection. However, you can cache the Map to use out there where no wi-fi is available. This means that you can call up the Map and display the area in which you will be working, turn off wi-fi then go out in the field. You will be able to view the Map while working with your app. As long as you do not play with the Map function while you are out there (such as switching from Show Satellite to Show Hybrid) or close Map, the background map should remain available.

Any Android apps?

An SXBlue dealer wrote:”I am a MAC user, but really prefer Android as a mobile OS. Got a lot more Android interest in the last 12 months than I do iOS interest.”

Yes, we have also received many inquiries about Android apps. However, at this time we do not have plans to develop apps on yet another platform. Currently, we have software for Windows, Windows Mobile/ Embedded Handheld 6.5 and iOS.

Use iPhone app to update attributes in Shapefiles

“I’m just wondering if I could use my I-phone for my surveying? Would iGPSGIS II allow me to import a table in shapefile format, update alphanumeric attributes in the field and then export it back to my PC? From the descriptions of this software it looks like i can only view ()not edit) the attributes of imported files.”

Yes, iGPSGIS II will let you import points/lines/areas with attributes as Shapefiles, update the attributes then export them in Shapefiles.

Which EOS GPS receiver to get?

Please refer to the comparison chart at the following link:

Can’t hear sound from iCMTGIS III app on iPhone 6

“When I turn GPS on in my app, I don’t hear any beeps. My iPhone 6 works fine. Volume is turned up. The Navigation Beep and Featuring Beep show checked.”

Please check the Ring/Silent switch on the left side of your iPhone 6. It needs to be moved toward the display side. For additional information, please see the article at

Is the iPhone GPS accurate?

“I am looking at purchasing your Deed Calls – Grid – Stakeout app for my iPhone to help me find my property boundary stakes from an old survey. Does it use the GPS off the iPhone? Is that typically accurate enough to get started? Or do you recommend some other GPS devise to use. If so, any suggestions that are reasonable priced?”

The app can use the GPS off the iPhone. It is not quite accurate, probably around 10 meters. Many users purchase the Dual XGPS 150-A or the Bad Elf GPS to get 2 – 5 m accuracy. These are relatively inexpensive. So, if you think you will be able to find a stake within an area of 30 ft x 30 ft, then use your iPhone GPS. If you only want to search within an area of 15 ft x 15 ft, then get the Dual or Bad Elf receiver. You could try it first using just the iPhone and see how it goes.