There are a few discrepancies in the application & if you want a more astro-accurate app, SkyVoyager is the way to go.

It’s not a very intuitive app, but then again it’s also fun to discover how it works. I haven’t even taken it outside yet and have probably spent 3 or 4 hours watching the interplay of the planets as they travel around the sun. And the trying to understand movement of the stars and constellations. And enjoying an odd sense of time travel.

Here’s a suggestion: Try selecting Polaris and see what happens when you do the time lapse function. Then compare the movement you see to any close-by star. I’ll let someone else volunteer why the movements are so strikingly different. Watch the E and W indicators to see what I mean.

Incidentally, the reviewer pointed out two things. The first one was right.

If you tell the time lapse function to advance by the day, with the Sun selected, you can see the moon go slipping by and will sometimes cross the face of the Sun. Not long ago there was a full eclipse, and Star Walk lets you go back in time to see exactly when that happened. There are other full eclipses as well if you have the patience to keep watching.

But the reviewer gave a slight misdirection on one other thing. You do not have to touch “now” to make it stop advancing or going back in time. (This may be a recent improvement.)

Just touch the time grid to make it halt at that particular time, otherwise you return to your current time, or “now.” Select year, month hour or minute to change time lapse speed.

A helpful review for one of my favorite apps!

this review is so in depth it tells you what to think about this statement!