I use zoho, both calendar and mail. Works fine on iPhone and via web browser on laptop

Thanks for Orion tip, didn’t know that

There are some risks involved. But there are much more benefits. I found this study from this video, where all of it is explained in details:

https://youtu.be/MLBmO5LJqmA

Natural sun exposure is good for our health in many ways and it was proven years ago. https://onlinelibrary.wiley.com/doi/full/10.1111/joim.12496