The biggest gotcha for ISSDector is that it is 100% dependent on a cell data connection. Even if you "preload" it, it will likely lose all predictions if you are offline.

That being said, I still use it more than Look4Sat, but keep it around for when I go off grid.

On Mon, Jan 16, 2023 at 11:33 PM David Spoelstra via AMSAT-BB <amsat-bb@amsat.org> wrote:
I use ISS Detector. Excellent, full-featured app and I recommend it to everyone. I believe it costs $3 for all the ham satellites.

I also use Look4Sat. It's almost as good and it's free.

-David, N9KT


On Mon, Jan 16, 2023 at 9:24 PM Clint Bradford via AMSAT-BB <amsat-bb@amsat.org> wrote:
What is a very good satellite pass prediction app for Android smartphone users?

I have been recommending AMSATDroidFree - which I use on a Kindle Fire tablet.
But I do not have a "Droid smartphone to test with. A Canadian ham just told me he
was having difficulties with AMSATDroid Free - did not get the particulars.

Clint K6LCS
951-533-4984 - cell

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Don KB2YSI
https://www.hamqth.com/kb2ysi