I'd say get any of them. They all work fine IMO.
I had the original Apogee Jam and it worked great. I sold it...
Now I have a $3 Irig knockoff from China and it also works great. No latency.
The one issue with the Irig knockoff is that you HAVE to use headphones.
I am not sure why but if you do not plug in the headphones, the sound still does not come out of the phone for some reason.
I have only used it for that so I cannot comment on routing to Power amp or anything like that.
I say if it is just for home use and you don't mind headphones get the $3 Chinese knock off. There is literally no audible difference between that and the $100 Apogee Jam. Not any that you are going to notice.
Edit: The biggest issue I had with Apogee Jam was replacement lightning cables. Good luck finding one for a fair price if and when it shorts out on you.