Comparison

HowLong? vs Countdown Keeper

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

HowLong?

This app helps you track time in meaningful ways, counting down to future events or up from past milestones. It offers flexible timers for focus, personal goals, and even historical or cosmic perspectives on time.

Highlights
  • Count down to events
  • Count up from milestones
  • Pomodoro and Ultradian timers
  • Live Activities and widgets
  • Cosmic Calendar visualization
  • Personalized time counters
Features
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How long until? How long since? How long, really? HowLong? is a love letter to time. It's a timer app, yes โ€” a really good one โ€” but it's also an invitation to notice the strange, beautiful thing that time actually is. COUNT ANYTHING, IN ANY DIRECTION Count down to the moments you can't wait for. Count up from the moments you never want to forget โ€” or the ones that changed everything. Weddings, launches, exams, first steps. Days sober. Days since your last cigarette. Some numbers are worth watching grow, one hard-won day at a time. Track them all with flexible timers, Live Activities, and widgets that keep your moments in sight. FOCUS, YOUR WAY Work with time instead of against it. Classic Pomodoro sessions for deep focus, or Ultradian timing that flows with your body's natural rhythm. Track your streaks, log your sessions, and watch the hours add up to something. PRESETS FOR EVERYTHING UNDER THE SUN Religious dates, holidays, seasons, pregnancy milestones, financial deadlines, when can I collect state pension (UK) โ€” and history. When my son asked "how many years since the Great Fire of London?" and "how many days since we invented the aeroplane?", we didn't want a fact, we wanted a counter โ€” a number still ticking. Now it's a preset. TIME, IN CONTEXT This is where HowLong? gets a little cosmic: The Cosmic Calendar โ€” squeeze all 13.8 billion years of the universe into a single year, and watch all of human history flash by in the final seconds of December 31st Your Life as One Day โ€” if your whole life were 24 hours, what time is it right now? (It's earlier than you think.) Living counters โ€” how far Earth has carried you around the Sun, how many times your heart has beaten, how many breaths you've taken while reading this sentence How to Slow Down Time โ€” why summers felt longer when you were small, and what science says about making time feel rich and full again Time is the one thing we all spend and none of us can save. HowLong? won't give you more of it โ€” but it might just help you feel it. How long have you got? Terms of Use (EULA): https://philsellars.github.io/Developer/howlong-eula.html Privacy Policy: https://philsellars.github.io/Developer/howlong-privacy-policy.html

About

Countdown Keeper

Features
Read full description

Countdown answers one simple question: how long has it been since an important date in your life โ€” or how long until it comes? Save the dates that shaped your story โ€” your date of birth, your first child's birth, your wedding, your graduation, moving into your home, your first day at work โ€” and Countdown tells you exactly how long it has been, in years, months and days, on a live counter that updates every second. For dates still ahead โ€” your retirement, the end of your home loan, a contract's end โ€” it shows exactly how long is left. No sign-up and no clutter: you open the app and see your counters. Every date flips from "how long until" to "how long since" on its own the moment it arrives, so your timeline stays honest without you touching a thing. Countdown speaks both calendars. Count any date in Gregorian or in the Hijri (Umm al-Qura) calendar, and choose the right calendar for each date individually. Have a date in the other calendar? Convert it in the Date converter and save it straight away โ€” no need to switch the app's calendar. โ€ข See how long since an important date, or how long until one ahead โ€ข Live counters that update every second โ€ข Choose exactly which units to show โ€” years, months, days, hours, minutes, seconds โ€ข Both calendars: Gregorian and Hijri (Umm al-Qura), per date โ€ข Event Story: write the story behind any date and reveal it below its card with a tap โ€ข Monthly recurring dates like salary and rent, rolling forward automatically โ€ข Reminders before a date โ€” at the time, a day before, or a week before โ€ข Repeat a reminder after 5 or 10 minutes, with "Remind again" from the reminder history โ€ข Give each date an emoji icon or your own photo, and pick a card colour โ€ข Several card styles, and pin your most important dates to the home screen โ€ข Built-in date tools: Hijri โ†” Gregorian converter, age calculator, date difference, add & subtract days, and a retirement estimator โ€ข Encrypted backup of all your data, restored whenever you need โ€ข Export and import your dates as a JSON file โ€ข Optional app lock with fingerprint or Face ID โ€ข 18 languages: English, Arabic, German, French, Japanese, Korean, Spanish, Turkish, Indonesian, Malay, Chinese, Portuguese, Italian, Russian, Dutch, Urdu, Bengali and Hindi โ€” with full right-to-left support for Arabic and Urdu Countdown is more than a reminder app. It is a calm, living timeline of the dates that shaped your story โ€” and the ones still ahead. Instead of counting the years in your head or digging through old papers, keep every important date in one simple place and always know, at a glance, how long it has been and how long is left. Start free and add up to 5 events. When you need more, you can purchase the full version to add more events and use Countdown beyond the free event limit. Countdown needs no account, works fully offline, and your data stays on your device.

Screenshots

HowLong?4 screens
Countdown Keeper4 screens

Verdict

The call

The clearest difference is update cadence: Countdown Keeper at weekly against HowLong?'s every 2 months. Countdown Keeper also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. HowLong? sells 1 in-app purchase, starting at $3.99 per year and Countdown Keeper sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

HowLong? ships an update every 2 months, Countdown Keeper weekly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard2 real differences ยท 6 level
HowLong? versus Countdown Keeper: the parameters behind the verdict, then further details
ParameterHowLong?Countdown Keeper
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 2 monthsWeekly โ€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesโ€”
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.015.0 โ€” better
Further details โ€” not scored
Size4 MB33 MB
Age rating12+4+
DeveloperPhillip SellarsAbdul Almm

In-app purchases

1 purchases

HowLong?

Subscriptions1
  • Premium$3.991 Year
1 purchases

Countdown Keeper

One-time1
  • Lifetime Access$0.99

Questions

Is HowLong? free?
HowLong? is free to download, with in-app purchases available.
Is Countdown Keeper free?
Countdown Keeper is free to download, with in-app purchases available.
Do HowLong? or Countdown Keeper have ads?
Neither HowLong? nor Countdown Keeper shows ads.
Which is updated more often, HowLong? or Countdown Keeper?
HowLong? ships an update every 2 months, and Countdown Keeper weekly. Most recently, HowLong? was updated on October 31, 2026 and Countdown Keeper on October 29, 2026.

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