RippleRipple

Available on iOS & Android

Alarm for any interval
1 to 99.
Hours, days, weeks, months.

Your phone can set an alarm for tomorrow. Ripple sets one for every 3 days, 11 days, or 6 weeks — with the reliability and polish you expect from a utility you trust with your health.

See how it worksFree · No credit card · 1–99 interval
9:41

Ripple

9:41AM

+

Thursday, 24 April 2026

Next alarm: 7:00 AM — in 21h 19m

💊

Take Medication

Next · Tomorrow · 7:00 AM

Every 3 days
🌱

Water the Plants

Next · Today · 8:30 AM

Every 2 days
🔧

Change HVAC Filter

Next · Jun 24 · 9:00 AM

Every 3 months
AlarmsHistoryTemplatesSettings
Alarms · home

The gap nobody fixed

Your phone can't do this. Ripple can.

Every phone has a daily alarm. Not one has a built-in way to ring every 3 days, 11 days, or 6 weeks — and that gap affects millions every day.

Phone glowing with a Ripple reminder on a nightstand beside a pill organizer and glass of water
↻ Every 3 days · 8:00 AM

Take medication every 3 days

Medication schedules don't always fit a 24-hour cycle. Ripple handles every interval from hours to months.

Water succulents every 14 days

Plants have their own rhythm. Stop guessing — Ripple reminds you exactly when it's time.

Change filter every 3 months

Home maintenance you always forget. Set it once and never think about it again.

App preview

Built in the app. Shown exactly as you'll use it.

Live app screens from the current Ripple build — dark theme, cyan accents, interval tags, and alarm cards. What you see here is what you'll get on iPhone and Android.

9:41

Ripple

9:41AM

+

Thursday, 24 April 2026

Next alarm: 7:00 AM — in 21h 19m

💊

Take Medication

Next · Tomorrow · 7:00 AM

Every 3 days
🌱

Water the Plants

Next · Today · 8:30 AM

Every 2 days
🔧

Change HVAC Filter

Next · Jun 24 · 9:00 AM

Every 3 months
AlarmsHistoryTemplatesSettings
Alarms · home

Your intervals, one glance

See next ring times, repeat tags, and categories — the same layout as the shipping app.

9:41

New alarm

Take Medication
7:00 AM
HoursDaysWeeksMonths
3+

Category

💊 Health

New alarm

Set any interval in seconds

Hours, days, weeks, or months — pick 1 to 99 with no calendar workarounds.

9:41

7:00

AM

Take Medication

↻ Every 3 days

Alarm ring

Lock screen that means business

Full-screen ring with sound, vibration, and a dismiss button you cannot miss.

9:41

History

💊

Take Medication

Today · 7:00 AM

Dismissed
💊

Take Medication

Apr 21 · 7:00 AM

Dismissed
💊

Take Medication

Apr 18 · 7:00 AM

Snoozed
History

Track what actually happened

Dismissed, snoozed, or missed — a clear log for medication and maintenance compliance.

Built right

Everything an interval alarm needs

Designed for people who actually depend on reminders — clean, reliable, and genuinely delightful.

⏱️

True custom intervals

Hours, days, weeks, or months — any number from 1 to 99. No awkward workarounds.

🔔

Reliable every time

Exact alarms with lock-screen takeover, sound, vibration, and a clear dismiss action.

⏭️

Skip next occurrence

Away this week? Skip the next ring without resetting your entire schedule.

📊

Alarm history

See when each alarm fired and whether you dismissed or snoozed — track compliance.

🏷️

Categories & labels

Health, plants, maintenance, pets, work, or custom — keep a long list readable.

📦

Template gallery (Pro)

Install ready-made alarm packs for medication, plants, maintenance, and more.

🎨

Auto theme (Pro)

Matches your device — follows system light and dark mode automatically.

What will you set first?

Medication

Every 3 days

Plants

Every 14 days

Pets

Every 30 days

Home

Every 3 months

Fitness

Every 2 days

Meal prep

Every 4 days

Finance

Every 2 weeks

Personal care

Every 5 days

Guides

Interval reminders for real life

Practical guides for medication, pets, plants, pool care, and home maintenance — and how to set alarms that actually repeat on your schedule.

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.

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.

Guides

Alarm vs Habit Tracker: Which One Do You Need?

Alarms catch what you must not miss. Habit trackers build what you're trying to become. A quick guide to picking the right tool — or both.

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.

Simple pricing

Free to start. Pro for power users.

Free

$0

Forever free · No credit card

  • Up to 3 alarms
  • All interval types
  • All categories
  • Alarm history
  • Unlimited alarms
  • Template gallery
  • Auto theme
Most popular

Ripple Pro

$19.99 / year

or $2.99/month · Cancel anytimeSave 44%

  • Unlimited alarms
  • Template gallery
  • Auto theme — matches your device

Built to solve a problem we all have

Ripple was built out of genuine frustration. Setting a medication reminder that fires every 3 days should take 10 seconds on any smartphone — it doesn't, so we built Ripple.

We're a small team that believes utility apps should be beautiful, reliable, and do exactly what they promise. The alarm fires. Every time. On time.

iOS + Android

One app, both platforms

Any interval

1 to 99 · hours to months

Snooze & skip

Flexible when plans change

Privacy Policy

Last updated: June 2026

Short version: Ripple stores alarms on your device. We don't sell your data. A free account lets you sign in and manage Pro features — alarms stay on your device.

1. What we collect

  • Alarm data you create — stored locally by default
  • Account email for sign-in and subscription management
  • Anonymous crash reports via Sentry
  • Anonymous usage analytics via PostHog — no personal IDs

2. What we do not collect

No name, location, or health information beyond your account email. No cross-app tracking. No selling data to advertisers — ever.

3. How we use your information

  • Deliver alarm and reminder notifications on your device
  • Manage your account and Pro subscription
  • Improve app reliability and fix bugs
  • Respond to support requests you send us

4. Notifications & device permissions

Ripple requests notification, alarm, and optional full-screen intent permissions so alarms can ring on schedule. You can revoke these in your device settings at any time, but alarms may not fire as expected.

5. Third-party services

  • Supabase — authentication
  • RevenueCat — subscription management
  • Apple App Store / Google Play — in-app purchases
  • Sentry — crash reporting
  • PostHog — anonymous product analytics

6. Data retention

Local alarm data stays on your device until you delete it or uninstall the app. Account data is retained while your account is active. You can delete your account from Settings → Close account, which removes your alarms, history, and sign-in from our servers.

7. Your rights

Uninstall to delete local data. Account holders can request full account deletion at hello@ripplealarm.com. Depending on your region, you may have additional rights to access, correct, or delete personal data.

8. Children

Ripple is not directed at children under 13. We do not knowingly collect personal information from children.

9. Changes

We may update this policy from time to time. Material changes will be reflected on this page with an updated date.

10. Contact

Questions about privacy? Email hello@ripplealarm.com.

We'd love to hear from you

Bug report, feature request, or just saying hi — we read every email. We typically reply within 1–2 business days.

Free to download.
Ready in seconds.

Set your first interval alarm in under 60 seconds.