I just use the simple note pad app on my iphone. The first line will be the date and location. That way when i look through my notes thats the only thing that comes up so i can select using that info. Then I skip a line, enter the starting hand, position and effective stacks and also any special note suck as 4 handed ect. Next line preflop action. Next line Flop, then next line I list the flop. Next line is flop action. Next line is Turn, then turn cards. Next line is turn action. Then this repeats for the river. So, it ends up looking like this,
1/6/17 Harrahs

AKo utg (1000)
Hero open raises to 35, mp call, sb call
Flop
A T 2 rainbow
Sb checks, hero bets 65, both call
Turn
8c
sb checks, hero bets 215, mp folds, sb calls
River
Ax
sb checks, hero bets 325, sb folds

Hope this helps. I usually email the notes to myself, display then on my screen when me and my coach talk and share screens on skype. Ive been making the notes in this format for a few years and we both are used to looking at them and it works for me. GL

Jordy,
I use voice memos ideally shortly after the hand to capture the most amount of information like my emotions and reasoning for my decisions. It's a great method.

FiiNote is a google app

http://jonathanlittlepoker.com/how-i-take-notes-at-the-poker-table/

the Little one is a paper system

https://itunes.apple.com/gm/app/live-poker-player-notes/id1079214949?mt=8

https://itunes.apple.com/us/app/poker-notes-live/id724596139?ls=1&mt=8

the two last ones are Apple apps

Hey man I use poker analytics 4 it has a really good format for hand reviews and the rest of the app is also really easy to function. Definitely recommend it! You can get it for free but after 10 session entries you have to pay for it and I think its around $40 but IMO it is definitely worth it!