Guides
Interval reminder guides
How to set alarms for every X days, weeks, or months — for medication, pets, plants, pools, filters, and more.
Use cases
Medication
Best Alarm App for Medication Reminders
Every-other-day doses, weekly injections, and odd schedules — why built-in alarms fail and what to use instead.
iPhone Guide
How to Set a Repeat Alarm Every 3 Days on iPhone
iPhone's Clock app can't repeat every 3 days. Here's the workaround that actually works.
Pool Maintenance
Pool Chemical Reminder App
Chlorine every 3–5 days, shock every 2 weeks — set custom interval alarms for every pool treatment.
Pet Care
Flea Treatment Reminder App
Flea treatments need to be applied every 30 days — not roughly monthly. Set a precise interval alarm.
How-to guides
Plant Care
How Often to Water Succulents
A simple watering schedule by season — and how to remember it without overwatering.
Custom Alarms
Custom Alarm App Guide
How to set a repeating alarm for any interval — every 3 days, 2 weeks, or 3 months.
Home Maintenance
How Often to Change Your Air Filter
A clear replacement schedule by filter type and household — plus a reminder that fires on time.
Medication Reminders
Best Medication Reminder App for Odd Schedules
Every-other-day methotrexate, weekly Ozempic, monthly injections — how to pick a reminder app that handles them.
Medication Reminders
10 Pill Reminder Alarm Tips for 2026
Real medication names, ten meaningful criteria, and what to look for in a pill reminder alarm app for complex schedules.
Shift work
Shift Work
The Shift Worker's Alarm Problem: Rosters That Repeat Every 3 Days
Firefighters, nurses, and rotating-roster workers can't use normal alarms — phone clocks only repeat weekly. Here's how to set an alarm for every 2nd, 3rd, or 4th day.
Medication Reminders
Medication Reminder Every 4 Hours
Four-hourly doses drift the moment life gets in the way. How to set an interval alarm that counts from your actual last dose.
Medication Reminders
Medication Every 6 Hours Reminder App
QID dosing means four times a day at even spacing — not whenever you remember. Set a reminder that holds the interval.
Medication Reminders
How to Set an Alarm Every 8 Hours
Three-times-daily schedules rotate through the clock. Here's how to set an alarm that repeats every 8 hours, including overnight.
Eye Care
Eye Drop Reminder App
Glaucoma and post-surgery drops run on tight intervals with tapering schedules. How to track them without missing a dose.
Skincare
Sunscreen Reminder App: Reapply Every 2 Hours
Sunscreen needs reapplying every 2 hours outdoors — and sooner after swimming. Set an interval alarm that actually reminds you.
Baby Care
Baby Feeding Reminder App
Newborn feeds run every 2–3 hours around the clock. How to track intervals from the last feed when you're too tired to do the maths.
Medication Reminders
Injection Reminder App
Weekly, fortnightly, and monthly injections don't fit a weekday repeat. Set an alarm that counts the actual interval.
Diabetes Care
Insulin Pump Site Rotation Reminder
Infusion sites need changing every 2–3 days, timed from the last change. How to set a reminder that tracks the real interval.