I use Aquarimate and idk how I ever did it before that. You can track parameters, schedule PMs/tasks (dynamic or fixed), log expenses, ect. Works great for multiple tanks too. Not free but worth the couple of bucks it cost.
I use aquarium note and i love it. Super simple and easy. It also tracks your expensesv for everything, gives you a place to record any action you took with your tank. Daily reminders of you want. Scheduled tasks. It's pretty great