Sun Seeker is one of the best and easy-to-use apps. It allows permaculture farmers to leverage modern technology. This application uses the gyroscope, magnetometer, and GPS to determine the accurate solar path and position depending on the farmer’s location. It provides an augmented 3-dimensional camera view and a flat view compass.
From the default map view, you will be able to know each daylight hour’s solar direction as well as the times the sun will rise and set. The app’s 3-dimensional reality overlay is perhaps what sets it apart from other applications (for permaculture farming). As the name suggests, augmented reality means something better than just reality – this feature allows the farmer to get a HUD besides what they view through the camera. The reality overlay will show you the exact current position of the sun, its summer and winter solstice paths, and its projected path as it moves across the sky (of course, with hourly intervals).
As a permaculture land seeker, land owner, or a designer, Sun Seeker could be the real deal. As already mentioned, the app is helpful in locating the current path of the sun as well as in visualization of the solar angle throughout daylight. With this app, you will also be able to see what solar accessibility looks like on any date and location.
It is needless to mention that the sun 
is very important when it comes to farming. Besides being a source of energy, virtually every crop needs the sunlight to grow. Thus, as a farmer, it will be of great interest to know not only where the sun rays fall, but also where they cannot reach due to say, blockage.
Hunting for land to farm but not sure if the land is suitable for what you want to grow? Sun Seeker helps you to know the amount of sun that the land receives with respect to location. Features like aspect and slope are the most important factors after water; hence, you’ll want to ensure that the land receives optimal sun exposure. With this app, you will be able to quickly analyze the current path of the sun as well as its path on solstices.
Another big issue could be when considering multiple locations for your greenhouses, plants, orchards, gardens, solar panels, etc. Yes, all plants need sunlight, but there are those that need more sunlight than others. Consider annual veggies, for instance; these vegetables need a lot of sunlight. Thus, your garden will need to be located where it can access a lot of sunlight, and Sun Seeker will help you determine an appropriate location for the garden. With this app, you will be able to know exactly where the sun will be at each hour of the day.