That's what NC widgets are for.
We are just going round and round in circles here.
NC widgets are cumbersome.
On and iPhone 6 or 6 plus with your phone locked, it's a 2 handed job to...
- Press the home button
- Slide the NC into view
- Click the notifications tab because the last time you viewed it, it was on the today tab
- Scroll down to appointments to see your next next appointment
- Press the power button to turn off
You may just as well just..
- Press the Touch ID to open the phone
- Click calendar. Done. Faster.
On the Windows phone, you pick the phone up PRESS NOTHING and the screen displays whatever you have told it to. Put the phone down and the screen goes off. It's not a full screen, it's a glance screen. It works brilliantly.
If you are afraid of security, then don't enable the feature. It's that simple.
The most you can do with the iPhone lock screen is view the date and time and a picture of your kid. Great!