For you
Practise notation, keep every junior game, and see progress over a season. Nothing collected about your child.
First congress, school club, a season of progress.
Knight to f3. Three taps on keys big enough for small hands.
The keypad follows the order you write a move in: piece, file, rank. Keys that cannot make a legal move dim as you type, so a mistyped move cannot go in, without ever suggesting one. Practice that carries straight over to a paper sheet.
A season of junior chess in one book: school matches, congresses, the club ladder. Rating tracks show progress without comparing anyone to anyone else.
Plyfolio has no account, no adverts, no chat and no tracking, and it collects nothing about your child. One payment of £9.99, through your store.
Phones usually stay in a bag during play. Afterwards, type the game in together from the sheet: it is a good way to go through it, and to talk about the moves that went well.