The Filter List

Never forget a filter again. The Filter List keeps every filter in your life — home and car — in one simple place, and reminds you before each one is due. Track your HVAC furnace filter, refrigerator water filter, under-sink and reverse-osmosis filters, car cabin air, and engine air filters. Add anything custom, too. - See everything sorted by what's due soonest - Get a reminder before a filter is due, and on the due date - One tap to mark a filter replaced — the next due date sets itself - Smart presets fill in sensible replacement intervals for you - Save the replacement part so reordering is effortless - Group filters by location — your home, your car, anywhere - Optional sync — keep your filters the same on every device Sync is set up with a five-word code. No account, no email, nothing to sign up for. It's off unless you turn it on, and the app works exactly the same without it. No account. No subscription. No ads. Simple, clean, and built to stay out of your way until you need it.