Memento Vivere — Remember to Live

How many Sundays left with the people you love?

Ninety seconds to know. The rest of your life to act.

Think of someone you love who lives far from you.
How often you see them   a few times a year
12×weeklydaily
~81
more seasons with Mom.
Based on U.S. Social Security life expectancy data. Individual lives vary widely.
Download on theApp Store iPhone · Free to try · $4.99 unlock · No account
Real wisdom. Real data. Honest math.
Built on
The Tail End
Tim Urban · Wait But Why
Calculated from
SSA Period Life Tables
U.S. Social Security · 2021 public data
In the tradition of
Memento Mori
Marcus Aurelius · Meditations, II.11
By the time you graduate high school, you've already used up 93% of your in-person time with your parents. Tim Urban · Wait But Why

The math is shocking until you do it.

If you see your parents four times a year and they're in their sixties, there are roughly sixty visits left in the whole relationship — not a lifetime, a few dozen weekends.

49 Sundays just shows you the number. One name, one age, one slider. The answer comes back in the unit that hits — visits, seasons, Sundays, mornings — and a share card beautiful enough to actually send.

~93%
of parent-time spent by age 18
~61
seasons left at 4×/year
90s
to your first number

Ninety seconds. No account. No ceremony.

Three screens. You can do this at a red light or in the car home from Thanksgiving.

01 · Enter them
~30 seconds
THEIR NAME
Mom
THEIR AGE
64
VISITS / YEAR
●●●●○○  — 4
Calculate

Name, age, how often.

That's all. No login, no email, no onboarding carousel.

02 · See the number
3 seconds
~61
seasons
left with Mom.

A number you can feel.

The unit adapts. 52× a year is "Sundays." Daily is "mornings."

03 · Share or save
a minute

A card worth sending.

9:16 share sheet for Story, iMessage, WhatsApp, or just your camera roll.

The same person, a different number.

The unit depends on how you share your life. A weekly Sunday dinner is fifty lunches. A daily morning is five thousand coffees. The math bends to match reality.

Once / year
~15
visits
"Grandma in Ohio. Christmas only."
A few / year
~61
seasons
"Dad across the country. Holidays."
Monthly
~240
months
"Sister in the next state."
Daily
~5,400
mornings
"The person I wake up next to."

Pay once. Yours forever.

Three people free. Five bucks for everyone else in your life. No subscription, no trial, no renewal.

Free
$0
Try it with up to three people.
  • § Calculate for up to 3 people
  • § Unlimited share cards
  • § Auto unit logic
  • § No account required
Unlock
$4.99 once
One payment. No renewals.
  • § Unlimited people
  • § Home-screen widget
  • § Priority support
  • § Grandfathered for life
Cheaper than a coffee. Worth more than most.

About spending time with people — not predicting anyone's death.

A real safety net

Crisis resources one tap away. Text HOME to 741741.

§

Averages, not predictions

SSA Period Life Tables 2021. Every number prefixed with "~".

Lifestyle, not Health

Not a medical tool. Makes no claims about your lifespan.

On your device

Nothing in the cloud. No account. Nothing to delete.

Questions, before you install.

A few things people ask us most. Short answers below; the longer story is on the App Store page.

Is 49 Sundays free?

Yes — free for up to three people. A one-time $4.99 unlock lets you calculate for unlimited people. No subscription, no trial, no renewal. Pay once, yours forever.

Is the calculator accurate?

It uses U.S. Social Security Period Life Tables (2021) — population averages, not predictions about any individual. Every number is prefixed with a tilde (~) to remind you these are estimates. Individual lives vary widely.

Does 49 Sundays need an internet connection?

No. After install, the calculator runs entirely on your iPhone. Nothing is sent to a server, and no connection is needed to calculate or view share cards.

What data does it collect about me?

None. No account, no email signup, no cloud sync. The names, ages, and visit frequencies you enter stay on your iPhone and can be deleted any time.

How does it pick the unit (visits, seasons, Sundays)?

By how often you see them. Once a year is visits. A few times a year is seasons. Weekly becomes Sundays. Daily becomes mornings. The app picks the unit that lands emotionally so the number is something you can feel.

Is this morbid?

It's about spending time, not predicting death. The app makes no medical claims, uses population averages only, and surfaces a crisis hotline (text HOME to 741741) for anyone struggling. A lifestyle app inspired by Tim Urban's "The Tail End," not a health tool.

Who built 49 Sundays?

A solo project by DungMai, an indie developer based in Saigon, Vietnam. The app launches on Product Hunt on Tuesday 16 June 2026, the day before Father's Day.

BUILT BY

A solo dev. One small app. The math that won't let me sit still.

I'm DungMai, an indie developer in Saigon. I read Tim Urban's The Tail End in 2015 and never quite recovered from the math. 49 Sundays is the smallest possible version of that essay — one screen, one slider, one honest number — built so the people in my life (and yours) get a few more Sundays out of the time we actually have left.

No account, no cloud, no subscription. Five dollars if it sticks. Free if it doesn't.

GitHub · DungMai · hello@49sundays.com

LAUNCHING JUNE 16, 2026 · TUESDAY

Coming soon on Product Hunt.

A solo launch by a solo dev in Saigon. Upvotes on launch day help small indie apps reach the people who'd benefit most — your support means a lot.

49 Sundays on Product Hunt — How many Sundays left with the people you love?

49 Sundays

How many Sundays left with the people you love?

Check it out on Product Hunt →

Stop wondering.
Count.

Ninety seconds to know. Five dollars to keep counting. Yours forever.

Download on theApp Store
iOS 16+ · Free to try · $4.99 to unlock everyone · No account
Instant No signup. No onboarding. Ninety seconds to your first number.
Private Everything stays on your iPhone. Nothing in the cloud. No account.
One price $4.99 once, yours forever. No subscription, no tricks.
Available on iPhone Download 49 Sundays
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