an app that tells you WHY a play is recommended? I’m relatively new to poker and I just don’t understand. Mainly in the area of thinking I have the best hand when I really don’t.

No. You're likely looking for some education content -- books/training sites/coaching, etc.

How do you go about 'thinking' you have the best hand? The majority of 'thinking' poker involves putting Players on a range of hands based on stack, position and Pre-Flop action. Then you put your hand against that range to determine how strong your hand might currently be when combined with the Board 'as is'.

New Players to the game are typically still playing 'cards' .. which means you are only looking at how strong you think your holding is and not considering the other portions of the game that influence what their opponent may have.

There's tons of free information that you can search for online and certainly read about here. You can also post a hand or two and get some feedback on this site. GL

nope, ChatGTO doesn't exist.....yet

i'm sure given the amount of imagination many 2+2 posters have re: thinking about their play, you could quite easily feed in the following into a text to speech bot:

10 print "because solver says so"
20 goto 10

Honestly, you'd be suprised how much you can learn from the most basic things, like waiting for hands, what hands to actually play just preflop. Playing even at play money and having the ability to wait and win, will put you at a better starting place then alot of people who play for years and lose.