I've used this app for a few years now, as it was the most complete Android option I could find. It was always tricky to use because of the depth and clutter of the interface. It recently underwent a complete redesign, which makes it far easier to use than before.
Planit!Pro covers all the same basic ephemeris information the other two apps do, plus a few other modes like meteor showers, light and shadow, panoramas, and tides. It is in fact the only planning app that does include tide information, even though on my phone it is a little slow to use. The list of tools include:
- Camera/scene location (2 pins for distance/elevation etc)
- Depth of field
- Sunrise/set, twilight and special hours (golden, blue hour etc)
- Exact positions of sun/moon
- Stars and star trails
- Milky way location
- Meteor showers
- Dark skies
- Time lapse
- Sequence (sun/moon over time)
- Exposure calculator
- Light and shadow
- Rainbow position
- Tide height, Tide search
- Map modes including google street view
The milky way finder is great, and it has a zoomable bortle scale light pollution map. Both combined allow you to plan your astro trips quite well. This is paired with the milky way calendar, which quickly shows you the best time to shoot (moon cycles and time above horizon etc).
One of the cool things with Planit!Pro is you can search by event then filter the results. So I can search a location for low tide in the next month and then filter by golden hour or new moon or whatever and it will show me a list of dates/times that meet my requirements. Makes planning something complicated far simpler!
Panorama mode will calculate how many shots you need for your composition based on your focal length.
It does have an AR mode, but its far more difficult to use compared to Photopills. Though it does have the ability to plan your composition on location with photos taken previously.
There is a free version lacking some key tools for avid landscape/astro shooters. It is worth trying before you buy the full version.
Its difficult to dismiss any of these three apps. They all do the job, and do it well.
TPE is by far the simplest, and that makes it quick and easy to use. Its also far more limited, but covers the basics of sun and moon positions and moon cycle.
Planit!Pro has some incredibly powerful tools if you take the time to learn how to use the app. Even with its reworked interface and built in help, it is often tricky to use. The flipside is it's incredibly versatile, and can combine a bunch of tools/views in one to give you all the information you will ever need. It is also the only one with tide information!
Photopills, at its most basic, is almost as easy to use as TPE. At the same time it offers almost the depth of Planit!Pro. It has become truly cross-platform recently, and has the most awesome AR mode. It is also a lot more social than the other two apps, with plans shared between groups. love the widgets.
For me, I am more likely to use Photopills now, as it has a nice combination of depth, features and ease of use.