They all are about the same. I know people love their apps. But, apps are all very close to each other output wise to about 1K (or at SS distances) and they
all the phones shut off due to heat, killing the apps.
I agree with
TacticalDillhole on Trasol, but can not on Hornady as I have seen bugs. AB is cool and has tons of fans, but dang it can be a struggle with updates etc. Nothing wrong with AB, just make sure you understand how to use it and the real limitations. With bullets over $1 each, I don't get why so many focus on the app cost. Focus on the feature set you want.
If you're shooting matches, there is a relatively new comer, no more accurate than my statement above, but if offers easy, cheap wind and weather integration in place of the more expensive Kestrel. The weather unit is about $85, it can link to the kestrel too. If that interests you,
BalisticArc is worth a look.
https://geoballistics.com/product/ballisticsarc-app/
It also has some GPS range finding that is a cute feature.. But the real value is the robust range card feature. This is ideal for matches were the stages are handed out in the briefing or even if you're setup at you favorite hunting spot. You can set each DOF, AOF and a prevailing wind value will be displayed as the unique wind value for each AOF and distance. Or if you wish, just use a full value setting and use your head to override. You can most importantly have multiple stages or range cards. This feature is a bit like FFS but on a manual scale vrs tethered to a Vectronix.
My only 2 cents is, don't make to much of the marketing hype of the apps. They either have the features you need or they don't for shooting distances that are SS.