"I'm going home" is primarily intended for trekking enthusiasts, since it's a navigator for cross-country conditions. If you are afraid of getting lost in the woods, in a desert or swamp, this is the app for you. If you like fishing or taking your ATV out and exploring, this app will also be a great asset for you.
Just set a waypoint or stick to the route you want to use for your return (like in that tale about Hansel and Gretel) - and the app will guide you back or to your waypoint, telling you where to turn with voice.
What is the difference from car navigators? It's simple - you need a map for a car navigator. There are no maps or roads in a forest. The app does not use maps for navigation, just the GPS signal and your waypoints used for plotting your route. You can walk at any speed, the accuracy of measurement will remain the same. Why does the app use voice instructions? It's simple as well - for keeping your eyes and hands free for more important things. If you keep looking at your car navigators' screen, one or both of your hands must hold it, and you can't look in front of you, which is important when you are out in the woods.
How different is it from the first version of "I'm going home"? The main difference is the possibility to use the same route for your return, and full voicing of the distance walked, remaining distance, elapsed time, remaining time and the TTS system.
Does the app require an Internet connection? No, navigation does not require an Internet connection, but it is used for some secondary functions.
How many routes or waypoints can it save? As many as needed and possible, so it will only depend on the amount of memory your device has.