And none of us got our smarts from smart phone apps!
No, but they weren't around then and if they were and can be used to teach then why not use them. Looking down your nose and coming out with comments like that provide zero input into a thread.
As for everyone else, thanks for the input, it's useful to see what others have done and are doing.
As for signing, it's not been a problem for us as we sign and speak, and she is copying us so it's going ok so far.
Screen time isn't that big an issue, TV is always on but she has NO interest in it unless the theme tune for the Big Bang Theory comes on

Doesn't watch cartoons, but she does like having music on in the background and can be seen dancing while doing other things.
I'm in no way going to force her to learn, just encourage her natural curiosity and feed it.
Food wise, some days she'll eat anything, other days she is fussy. She will eat anything although she seem to be going off the baby jar rubbish and is preferring proper food and she already know's what 'no' means, and sometimes uses it back
She is out at groups 3-4 times a week, interacting with other kids up to 4 years old. Add that to lots of walks, day trips etc and we're giving her a lot of stimulation.
She's already got a fair book collection for her age, she just loves them and we read a lot while she turns the pages. She does get bored and loves new things hence the reason for asking. She loves piano/drums on my phone, animal pics and sounds too she really likes.
We've got stickle bricks etc ready for her birthday along with other bits and pieces.