My iMessages and reminders are not syncing between my iPhone and ipad

Thanks - after I deleted the Reminders app, shut down my ipad and then reuploaded it, it worked! Appreciate the help!

The reminders app updated itself on my iPhone automatically, but i show no reminders on my phone at all. It appears my iMessages is not allowing messages from android phones to come through on my ipad. I can’t figure out what’s going on. how would I manualy update the Reminders app?

Thank you - i have just read through the information you supplied and I am not offered the “upgrade” screen when I open reminders on my ipad, so i have not upgraded. I deleted the app and then reinstalled it, thinking i might get another chance, ** it just opens to a blank screen with a search box and an “add file” option in the bottom right. I double checked that the OS is the most up-to-date and it is. Thanks for your patience and help!

Thanks - Reminders are now transferring between ipad and iPhone perfectly... BUT ... text messages (which show up in my iMessage app) from Android phones are getting through to my iPhone, but not my ipad. I have turned on SMS messaging and gone through everything I can think of, but no luck. My ipad is WiFi only - no cell chip - in case that matters, but I will be very unhappy if this is not fixable. Any suggestions you can offered will be appreciated!!

iPhone is 6S and iPad Air 2. Updated phone first and have new reminders, but nothing has transferred over to ipad.

Reminders and Messages are enabled on both a iPhone and ipad. Both are also enabled on iCloud. Appreciate your help!