Filtro: Filter Tracker

Filtro tracks every filter in your home, air purifier, HVAC, fridge water, range hood, humidifier, car cabin, and reminds you exactly when it's time to change them. Add a filter in a few taps. Filtro remembers the date and reminds you before it's overdue, nothing else to manage. See what's overdue, due soon, and all clear at a glance. Mark a filter as changed with one tap, and keep a full history of every change. Filtro Plus unlocks unlimited filters (free covers 2), a Home Screen widget with the next change always in view, spare filter inventory with low-stock alerts, and a photo/buy-again link so you never guess the size again. One-time purchase, no subscription.