I've pretty much gone full phone mode this year for slots... desktop's still nicer at home, but if an app is clunky I'm deleting it in about 10 mins. A few are actually solid now though, way better than the old half-broken ones that felt like a squashed website.
For me the good ones all do the same basic stuff right: load quick, don't freeze right when a feature lands, let me jump between pokies without logging in again, and the cashier isn't hidden in some weird menu. Face ID stuff helps heaps too. If I have to type passwords and SMS codes every single time just to chuck in twenty bucks, I'm out.
The ones I've kept on my phone have decent game search, promos that are easy enough to find, and withdrawals that don't feel like a bloody scavenger hunt. One thing that still does my head in though is when the app runs smooth on the lobby, then a slot opens and it starts lagging like mad. Had that happen on a newer Samsung and that's just rough.
Keen to hear what everyone else is using lately. Not asking for some giant ranked list or anything, just which apps are actually worth keeping installed right now for pokies? Bonus points if they don't chew battery like crazy or boot you out every arvo.