Occasionally when trying to install TrackApp, there is an error message that states This device doesn't have enough space to download "TrackApp". Consider deleting apps or content you no longer need and try again.
Often this error message occurs even when the phone memory is stated as having over 300 MB of free space.
The solution is to go to the phone's settings, then go to "Apps" then find the two items called "Google Play Store" and "Google Play Services". Under each of these, do the following where applicable: Uninstall updates and Clear cache and Clear data.
After clicking on Application manager, click on Google Play Store
Click on Uninstall Updates, Clear Data, and Clear Cache
The same procedure may be repeated for the Google Play Services app by repeating the above steps after selecting Google Play Services in the Application Manager. The apps should update to the latest version the next time you open them while connected to WiFi or mobile data.