Not sure about he GPS Thingy but, I’ve got the 64GB one, loads of memory for storing TV Programs (see below)
Pages & Numbers are good for spreadsheets & letters, a lot like Excel & Word but you have to play with them to understand the functions (I’ll,never understand it all, but it’s good enough for a Dinosaur like me)
BBC I player & I Player Radio are a must for downloading programs for nighting out.
You can download Offline Maps on Google Maps for out of the way areas, downloads about 10 square miles.
Just lately I’ve discovered Magic Puzzles, great for a bit of time wasting.
Loads of card games, pool, dominoes & shoot em ups.
Books are another handy thing, you can download anything in PDF (whatever that means) & it’s always there to hand.
That’s just a few that I use, but I’m sure that there are loads more.
Back it up on to I Cloud, 79p per month/ less than £10 per year, in case you loose your Data.