Introducing the Remember the Filter App for iPhone
After twenty years of helping people find the right filter, we built the thing we kept wishing existed. The Remember the Filter app tracks every furnace, AC, and refrigerator filter you own, reminds you before one is due, and puts your exact size one tap away—whether that’s one house or a portfolio of buildings. It’s free, and it’s on the App Store today.
Download Remember the Filter on the App Store — iPhone, iOS 17 or later. No account, no subscription, no ads.
The hard part was never buying a filter
If you’ve ordered from us before, you already know the hard part isn’t buying a filter—it’s remembering when the next one is due. A forgotten filter clogs, strains your blower, and quietly drives up your energy bill. That’s the problem the app solves, and it takes about a minute to set up: add your size, pick a reminder, and you’re done for the year. If you want the background on timing first, our guide to how often to change your air filter pairs well with it.
Reminders that actually fit your home
Set any schedule you like—days, weeks, or months. Or let the app suggest one with a transparent “smart schedule” built from your filter type, your home (pets, smoking, how many people), the season, and how the last filter actually looked when you changed it. Every factor is shown in plain language—an honest estimate, never a hidden guess. Tell the app how the old filter looked when you swap it, and the schedule learns. One tap marks it changed and the clock resets.
Local air quality, tied to your filter
The app has a real air-quality tab: live AQI, the pollutant breakdown, pollen levels, and a multi-day forecast. And it’s honest about what a filter can and can’t do—it captures airborne particulates like PM2.5, PM10, smoke, and pollen, but not gases like ozone, nitrogen dioxide, or carbon monoxide. We tell you which is which, every time.
On smoky or high-pollen days, your filter is doing more work than the calendar knows, so the app estimates the extra load and can move your reminder in—so you check it before it’s overdue. It only ever moves a date earlier, and it will never tell you to “size up” your MERV: a denser filter can strain an older system. If you want to understand that trade-off, see the truth about MERV 13 filters and our take on testing your home’s air quality.
Reorder your exact size in one tap
When a filter is due, your exact size is one tap from your cart at RememberTheFilter.com—standard sizes, custom cut-to-fit sizes, and refrigerator filters by brand and model. No hunting for the number on the cardboard, no guessing between furnace and AC filters. The size you saved is the size that’s waiting.
One home, or a whole portfolio
The same free app scales from a single house to a building. For facilities teams and property managers, it tracks filters across properties, units, and systems, and opens a “due this week” worklist instead of a calendar. A few things built specifically for commercial work:
- Scan a unit’s nameplate—the camera reads the make, model, and serial on device.
- QR labels and photo proof-of-service, with a full change history on every unit.
- CSV audit export, for when someone asks you to prove it.
We handle facilities and commercial orders every day. If you need pallet pricing, bulk quantities, or a spec checked, our commercial pre-filter guide is a good starting point—or just reach out for a quote.
Private by design, free forever
There’s no account to create, no subscription, and no ads. Every filter you track stays on your phone. Reminders run locally on the device—the app doesn’t need your email to do its job, and it isn’t selling your data to anyone. It’s the tool we wanted for our own homes and buildings, and we’re giving it away because it makes the rest of what we do—getting you the right filter—easier.
Get it today
Remember the Filter is free on the App Store for iPhone (iOS 17+). Add your first filter, pick a reminder, and you’re set for the year. On Android? It’s iPhone-only for now—but your exact sizes are always one click away on our most-popular filters page.
Frequently asked questions
Is the Remember the Filter app really free?
Yes—free to download and use, with no ads, no in-app purchases, and no subscription. There’s a welcome gift inside for first-time customers, too.
Which devices does it work on?
iPhone running iOS 17 or later. It’s iPhone-only for now; an Android version isn’t available yet.
Can I use it to manage filters for a business or multiple properties?
Yes. The app tracks filters across properties, units, and systems, with a due-this-week worklist, nameplate scanning, QR labels, photo proof-of-service, and CSV audit export—so it works for a single home or a whole portfolio of buildings.
Does the app need an account or my personal data?
No. There’s no login to create, reminders run locally on your phone, and the filters you track stay on your device.
Will it tell me to upgrade my MERV rating?
Never. On high-pollen or smoky days it may suggest checking or replacing your filter sooner, but it won’t push you to a denser filter—too high a MERV can strain an older system.