Do not know about the UPromise.
Arrival and Arrival+ probably the most difficult of the 4 to get approved for. I'd suggest mid-to-high 600's. Closer to 700 for the Arrival+ (at least, if you want a decent limit). I was approved for their US Airways card with a 660-670 ($5k SL). I'd imagine similar UW criteria for the Arrival. I was four years past my last baddie.
For the Apple, anything near a 600 seems to be good enough. Some have gotten approved with high-500's.
Barclays likes a year of positive history with credit cards, I learned this first-hand when applying on behalf of DH. His AU accounts were completely ignored by the underwriter I spoke with. Not saying this applies to you, but it's good information to be aware of. Granted, this was for a Ring application, which the UW told me they had the strictest criteria for.... but they gave me one, so they can't be too strict. 
Last, but not least, they almost exclusively check TransUnion.
@Creditplz wrote:
Either Upromise , Arrival , Arrival + , or apple cards
The Apple and Rewards cards are the easiest to get; TU scores in mid 600's might do it.
@Creditplz wrote:
So which one of their cards do you think is the easiest to be approved on?
Mid 600, i got denied online. Early in the morning i called in and reconned and got approved for $1000 for their Rewards MC. Same night, right before i went to bed, i was on apple's website, i said what the hell and applied for Apple and got an instant approval for $2K which makes it my very first instant approval on an unsecure card ever. They may have some kind of a deal with apple to give out so many cards, and therefore seem to have less stricter approval conditions. I Love the cards, website, app, customer service, all A++ Recon was easy, i was asked about the so many (13) store cards i had opened within the last few months, and i told the rep those were mainly for utilization, and to add some accounts, eventually would all be closed as i got approved for better cards. I said being a male, those are all female store cards, therefore i could not even use them even i wanted to, he laughed 
They do not like inquiries. That's one thing to watch for. Otherwise, awesome company. I had both cards in my hand in less than 24 hours. I would recommmed apping for the apple card first, and ifyou get approved, then you can ry one of the other ones you want. If not, and you have to recon, i would not even try for another one as apple is really the easiest one. After i get my first auto cli's on both cards, i will combine them into one card for a one higher limit card and close the other one. Make sure you app on the same day for both cards, so you can have one inq for 2 cards. Don't leave it to the last minute before midnight as they may be in a different time zoe (Eastern) and one app may have a different date and you may get hit with 2 inq's.