PartCycle: Stop Guessing. Start Tracking.

The logic-based maintenance tracker for things without sensors.

Free • Offline • No Ads • Logic-Driven

As an engineer and a father, I discovered a critical bug in my brain: “Time Dilation."

You know that feeling? You look at a dirty air filter or a wet kitchen sponge and think: “Strange? Didn’t I just replace this?"

Then you check your purchase history—Holy crap, it’s actually been 6 months. 😱

“You think it’s been a month, but it’s actually been half a year."

That’s the trap. Things that don’t beep and don’t have check-engine lights are the easiest to forget. Relying on Google Calendar doesn’t work well because it’s static—if you change a filter early today, the future schedule doesn’t update automatically. It gets messy.

I built PartCycle to solve this exact problem. It’s a tool designed for the “Invisible Tasks" in your life.

• Logic, Not Just Dates
  Simply tap “I did this today," and the app automatically calculates the next due date based on your set interval. No more manual rescheduling.
• Traffic Light Interface
  Green means you’re good. Red means it’s time to act. Simple visual cues, no guessing.
• Focus on the “Sensor-less"
  Perfect for tracking items that don’t have smart chips or warning lights.