Watch the glow dim as it nears the end.
Beacon tracks every bulb, air filter, and water filter in your home. Each item gets a warm amber glow when fresh, cooling to a dim steel blue as it ages — so you always know what needs replacing at a glance.
Free for up to 3 tracked items. Beacon Pro unlocks unlimited items and custom categories — one-time purchase, $2.99.
One glance tells you what needs replacing.
Living glow indicator
Every item has a glow that shifts from warm amber to cool steel blue as it ages — no numbers to interpret, just a color you can read instantly.
Bulbs, filters, and more
Built-in categories for light bulbs, air filters, and water filters, each with a sensible default lifespan — or set your own for any custom item.
One-tap replace
Swapped a bulb or filter? Tap Replace and the glow resets to full brightness, dated from today.
Set it up once, glance at it forever.
Add your items
Bulb, air filter, water filter, or anything else with a lifespan. Pick a category and Beacon suggests a typical replacement interval.
Watch the glow age
Each item's glow cools from bright amber toward dim steel blue as its expected life runs down.
Replace before it's expired
Open Beacon any time to see which items are dimmest, sorted so the most urgent ones are on top.
Beacon Pro
Unlimited tracked items and custom categories for anything with a lifespan. A single $2.99 purchase, unlocked forever.
Get Beacon