AboardAlert app iconAboardAlert Get the app →
Cruise ship at a foreign port at dusk, gangway lit

Cruise port daysOfflineNo ads

AboardAlert

Get back before the ship leaves.
Even when your phone changes time zones.

Set all-aboard in ship time. The countdown and alerts stay on that clock — not the port’s, not whatever country your phone just joined. Works in airplane mode. No ads. No account.

iPhone or Android — pick your store. Not sure? We’ll detect your phone →

Launch news: App Store launch, August 31, 2026 · Google Play launch, April 13, 2026

See how it works

01 — The clock

The clock that strands people is not the ship’s. It is yours.

You are in port. The ship runs one time. The town runs another. Your phone quietly switches to the new country.

A normal alarm follows the phone. “Be back at 4:30 ship time” fires early or late. That is how port-day panic starts — not because you cannot read a clock, but because three clocks are lying to each other.

AboardAlert treats all-aboard as a fixed moment on the ship’s clock. Change countries. Turn on airplane mode. The alert does not move.

Three clocks out of sync, one gold ship clock locked

02 — The job

One job. Done on ship time.

Everything you need for a port day. Nothing from a cruise-line store. All on the device.

01

All-aboard countdown

Set official all-aboard once, in ship time. A large countdown stays on screen so you can check it without unlocking a puzzle.

02

Ship time and local time

Both on the same screen. You always see what the ship thinks it is, and what the port thinks it is.

03

Smart alerts

Reminders at 2 hours, 1 hour and 30 minutes before all-aboard, each one on by default and switchable. Safety alarms follow at 15, 12, 9, 6, 5, 3 and 1 minutes and at all-aboard itself, with distinctive alert sounds. All anchored to ship time, so a timezone change does not slide them. On iPhone, check that your Focus and silent settings allow AboardAlert notifications, and use the app's built-in sound test to confirm you will hear it.

04

Port memory

Save the schedule for each port day. Next stop, you are not re-entering the same three numbers.

05

Works with no signal

Airplane mode, dead roaming, ship Wi-Fi that will not connect — timer and notifications are local.

06

No ads. No account.

No banners. No “book this tour.” No login. Itinerary never leaves the phone.

03 — The app

See it in action

Real screens from the app.

AboardAlert countdown showing ship time and local time
Countdown on ship time, local time beside it
54 minutes left on the countdown
54 minutes left. Time to turn back.
13 minutes remaining
13 minutes. Get to the gangway.
Alert firing on ship time
Alert fires on ship time — even if the phone changed zones
Set all-aboard and save the port day
Set all-aboard once. Save the port day.
iPhone Notification Center: AboardAlert return-to-ship alerts at 15 and 30 minutes
iPhone
Android notification: 6 minutes until all-aboard at Nassau
Android

iPhone and Android. Same alert — head back now.

04 — Proof

LockedShip clock — does not follow the phone’s timezone
NoneServers required — timer and alerts run on the device
NoneAds — not at $0.99, not later

Why I built it

My wife and I love cruising. On one cruise, our ship was docked in Jamaica when some passengers didn’t make it back on time. We waited more than an hour. Then the ship left without them. I still think of that day.

When you’re ashore, you should be enjoying the port, not checking your phone every ten minutes in case you miss the ship. I didn’t want to build another giant cruise-planning app. I wanted one app that does one job well: help you know when you need to be back.

AboardAlert gives you a clear all-aboard countdown and reminders. It keeps ship time separate from port time, so your alerts stay put when your phone jumps to the local time zone. No ads. Works offline once your subscription is active.

Please always check the official all-aboard time with your cruise line. No app can guarantee you’ll make the ship, but I hope AboardAlert helps you worry less and enjoy more.

— Henk, Sun Engineering

$0.99/mo or $9.99/yr.

Passenger looking toward the ship from a harbor street, phone in hand

05 — Privacy

Your cruise stays on your phone

AboardAlert never uploads your itinerary. Port days, all-aboard times, and alerts stay on the device.

  • No cloud — No account to sync. No server copy of your schedule.
  • No tracking — No analytics package watching port days. No ad ID.
  • Fully offline — Works without internet after install.
  • You own the data — Export, back up, or delete it on the device.

Always confirm official all-aboard with ship announcements, the cruise-line planner, and crew. AboardAlert is a personal timing aid, not a substitute for official ship communications.

06 — Price

One price. Full app. No ads.

Subscription only. No free tier. No trial. Cancel anytime in your store account.

Subscribe on the App Store or Google Play. Desktop users: tap the store you use. Do not wait on a detector.

Boarding pass

AboardAlert

Ship-time all-aboard timer

$0.99/mo
$9.99/yr

Included: ship-time countdown · 2h / 1h / 30m reminders plus safety alarms · port-day memory · offline · no ads · Family Sharing ready (iOS)

Subscription only. No free tier. No trial. Cancel in your store account.

Download on the App Store Get it on Google Play
Port day passFull appNo ads

07 — FAQ

Questions search engines actually ask

Does the alert move if my phone changes time zone?

No. You set all-aboard in ship time. Reminders stay on that clock if the phone switches to port time or another country.

Does it work in airplane mode?

Yes. Countdown and notifications run on the device. No cell signal or ship Wi-Fi required.

Are there ads?

No. No banners, no cruise upsells, no affiliate links.

Do I need an account?

No.

What does it cost?

$0.99 per month or $9.99 per year. Subscription only. No free trial.

Is this official ship time?

No. Always confirm all-aboard with the ship. AboardAlert is a personal timer.

iPhone or Android?

Both. Use the App Store button or the Google Play button on this page.

Set the time the ship uses. Then forget the panic.

AboardAlert is the port-day timer that does not drift when your phone does.

Download on the App Store Get it on Google Play

iPhone or Android — pick your store.