You can use Google Calendar for free and set up alerts. You can set the sound, volume, custom message, how many times to repeat (e.g., repeat everyday at 10pm), and much, much more. Works on both android and iOS.

The phone call thing, I don't know what you can do to imitate that, but Google Calendar is really customizable and takes maybe 10 mins to set up if you're not accustomed to using it, or less than 1 minute if you’re acquainted.

You can also set up recurring text messages, which is effectively the same as Google Calendar. See here: How to Schedule a Text Message on the Android | Small Business - Chron.com

Just thought I'd mention those options, as I use them regularly for work.