I am also keeping a list of previous versions so that you can rollback when a new version is not working for you. Please drop me a note if you are having problems so that I can fix it.
To manually install GPS Essentials, you need to install APK-Files. You don't need a rooted device.
You can simply click on one of the links at the bottom of this page to install GPS Essentials. If it doesn't work, you might have to install and installer first.
Please send me an email if you notice something is wrong.
Every version has a minor number which is the second number in the version string.
The versions with an even or zero minor number, e.g. 2.0 or 2.2 are final versions. These are stable releases that have gone through thorough testing. The versions with odd minor numbers, e.g. 2.1 or 2.3 are beta releases. These releases contain new features, but they might also be less stable.