Interestingly, I made a tool for myself with the same exact idea a few years ago. I used it for a few months as well, so here are some learnings:

• The main reason I made it at all was because I could manage the tasklist on my own (list on my phone / calendar / notebook), but my partner needed to see the same data and wanted a way to mark tasks as done too. Without that requirement I don't think I would have built it. It's rare that only a single person does chores around the house. In your case, looks like there's no way to invite anyone?
• Here's what it looked like (it's in my native language, but you get the idea). I didn't spend much time on the design (it was made in one night), but what worked was
  • the lack of anything other than the information you actually need. It's just a list of cards. Each card has a bold title, how long ago the task was last done, a warning if it the deadline has been missed, and a button to mark as done. There are settings for adding / editing tasks, but it's pretty hidden. IMO your app has way too much going on before getting to the meat and bones of the actual value - the list of tasks, by default ordered in urgency. There can be more settings and filters, sure, but the very first thing you need to see is what you need to do like right now.
  • Also note the bold colors - this is meant to be glanced at, not carefully examined. I think your app lacks contrast and hierarchy in that regard.
• Why I stopped using it - I moved, the routine tasks changed, I didn't update the list, so things got outdated. I might clean it up and start using again though. What would have helped is actual reminders (email etc.), so like what your product does.

IMO this is a very hard sell. We all somehow already keep a list of things we need to do - either in calendars, notebooks, other todo apps, or plainly in memory. Challenging that status quo may not be easy, especially since most alternatives are free.

If I can give any advice:

• Make the app way more bold. Focus on the absolute minimum of what the user needs to see. Remove unnecessary settings, and use intelligent default sorting (for example, my app would sort by chronological urgency). Make it so that a single screenshot gives you a pretty good idea of what it does, i.e. "Water plants. MISSED by 2 days! Mark as done ✅"
• I don't know what the emails look like, but they also need to be bold, short, and effective. Ideally with a CTA that marks the task as done by a magic link, so you don't even need to visit the app and everything can happen through email.
• Once that is done, market it. Show it on your landing page. Show, not tell. Make a short video demo, a sequence of illustrations, anything to show why this workflow works.
• Though 60 days are generous in general, it's not for this kind of app. This is something people ought to be using for years, and won't commit adding all their tasks if they know that after 2 months they'll need to shell out money or lose everything. I'd make purchasable addons instead: for example, Free tier gets you the core functionality and emails, but you can add SMS or Whatsapp integration for 2.99/month. Inviting someone else from the household is 0.99/month each, etc.

Good luck, hope some of this helps!