I use vinegar water to clean my shower tile and grout, or you can also use dish soap and water. You can see my post about it here - https://chascrazycreations.com/clean-bathroom-natural-products/
Billie: I like to use Lime-Away --- saturated on a cloth and then use a scrubbie
I have found the best way to get soap scum and calcium off of tiles is to use Limeaway.
Depending on the issue, but in general you can go with a 50/50 blue Dawn and white cleaning vinegar solution.
Wet & forget shower is a good product to keep them clean.
Try this homemade grout cleaner: https://www.craftylittlegnome.com/the-best-homemade-grout-cleaner/
Hi Billie - This is the shower cleaner that we use to help keep grout and tiles clean and minimize the mildew - it works on kitchen grout too. I've also included a great article about mold if it's gone that far. Hope this helps! Hugs, Holly
PS - We have a FREE eBook with recipes for all of my homemade and all-natural cleaners. You can download it here --> https://pinkfortitude.com/thank#GreenClean