Looking for the best period tracker and mikvah (לוח מקווה) calendar to simplify my mikvah calculations. It should be available on Android phone and able to send reminders and notifications about important days and times.
They have an app for both iOS and android. It follows the chabad minhagim. Even with the app it doesn’t do absolutely everything. You can call them up and ask them for a tutorial and what you need to be aware of using the app. First few months are totally free. After that the basic counter is free but the advanced kevuos and some other stuff cost 18$ a year. (Which will also give you a discount on buying the physical calendar (another 18$)) The associated website is https://www.mikvah.org
I think that mikvahcalendar.com is the same people just marketed to other minhagim but I can’t say for sure. Having never used either one but know many people who do use the chabad one I can only speak for that. But if it’s the same it should be pretty good.