Best Piday Apps & Games

19+ iOS apps & games curated and reviewed

4.1 avg rating
17 free apps & games
Updated June 2026

Pi Day Countdown is the household name in piday, but it's far from the only option. We track 19+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Piday

Pi Day Countdown#1

Pi Day Countdown by iT Guy Technologies

countdown to important dates
Editor's Choice
🔧 Utilities
1.0(1 ratings)
Free
Pi Day Countdown screenshot 1
Pi Day Countdown screenshot 2
Pi Day Countdown screenshot 3
Pi Day Countdown screenshot 4
Pi Day Countdown screenshot 5

This utility app helps users celebrate Pi Day and other significant dates. Set default alarms for Pi Day or customize messages for any event. Enjoy tracking important dates with a simple interface.

Piday#2

Piday by Erik Veland

Mathemagical Calendar
Strong Contender
📚 Education
5.0(1 ratings)
Free
Piday screenshot 1
Piday screenshot 2
Piday screenshot 3
Piday screenshot 4
Piday screenshot 5
Piday screenshot 6

This app reveals the precise location of any date within the first five billion digits of pi. Search for significant dates like birthdays or anniversaries and explore their placement in pi's infinite sequence. It supports various date formats and allows you to save and share your discoveries.

Pi Digits Memory Game#3

Pi Digits Memory Game by Peter Li

Learn 1000 Digits for Pi Day !
Worth Considering
🎮 Games
4.2(60 ratings)
FreeAdsIn-App Purchases
Pi Digits Memory Game screenshot 1
Pi Digits Memory Game screenshot 2
Pi Digits Memory Game screenshot 3
Pi Digits Memory Game screenshot 4
Pi Digits Memory Game screenshot 5

Memorize 1000 digits of Pi quickly using color and musical notes for enhanced recall. Visualize numbers with chunking and compete on leaderboards. Practice daily to master Pi's digits.

More Piday apps to explore

4
Chaos Clock
Chaos Clock
Chaos Clock
Date & Time for Discordians
Free

Track time and dates according to Discordian principles and Erisian measurements. Features a countdown to X-Day and includes numerous Discordian holidays.

Discordian date and time measurementErisian Time MeasurementCountdown to X-Day
🎬 Entertainment
(12)
free
5
Pi-Anniversary
Pi-Anniversary
Pi-Anniversary
by Sestra Studio
Free

Never miss an important date again! This app helps you save and track anniversaries with custom reminders. It supports various time units and allows you to create your own event parameters for personalized tracking.

Save and track anniversariesCustomizable remindersSupport for various time units
🌟 Lifestyle
(2)
free
6
D-day Counter widget
D-day Counter widget
D-day Counter widget
Don't miss your good day!
Free

Easily track important dates and countdown to special events. This app helps you remember anniversaries, birthdays, and other significant days with a simple widget. Never miss a precious moment again.

Countdown to special eventsTrack anniversaries and birthdaysList of important dates
🌟 Lifestyle
(5)
ad-supported
7
Bestday – Event Countdown
Bestday – Event Countdown
Bestday – Event Countdown
Your best days
Free

Easily track important life events by counting the days that have passed or are yet to come. This free application helps you remember your favorite dates and calculate the time elapsed or remaining in a simple and intuitive way.

Track important life eventsCount past and future daysSave favorite dates
🌟 Lifestyle
(4)
free with in-app purchases
8
Special Days App
Special Days App
Special Days App
by Piet Jonas
Free

Discover and count down to various special days, from fun holidays to important observances. Share event dates, link to Wikipedia for more information, and customize the app's appearance. An upgrade unlocks calendar integration.

Countdown to special daysShare event datesWikipedia lookup for special days
🌟 Lifestyle
(2)
free with in-app purchases
9
Meniny - Name day
Meniny - Name day
Meniny - Name day
The best name day calendar.
Free

This app helps you track name days for yourself and your contacts. It offers daily notifications, a search function, and displays national holidays. You can also view names by day or in a list format, and it supports different countries.

Name day trackingContact synchronizationDaily notifications
🔧 Utilities
(10)
free with in-app purchases
10
Pi Answer Game - π Digits Game
Pi Answer Game - π Digits Game
Pi Answer Game - π Digits Game
Memorize Pi digits game
Free

Test your memory of pi digits with this engaging game. Choose from timed or untimed modes, practice specific digit sequences, and compete globally to become a pi master. Fill in missing digits to train your recall.

Timed and untimed modesPractice mode for specific digitsGlobal leaderboards
🎬 Entertainment
(2)
free with in-app purchases
11
Pi-cture it!
Pi-cture it!
Pi-cture it!
Explore Pi Through Art
Free
🎬 Entertainment
(0)
12
Pi Masters
Pi Masters
Pi Masters
Master Pi to 1 million digits!
Free
📚 Education
(0)
13
Pi Score Challenge
Pi Score Challenge
Pi Score Challenge
Learn more Pi digits!
Free
📚 Education
(0)
14
MarkedDays - Count to days
MarkedDays - Count to days
MarkedDays - Count to days
Mark important days in life
Free

This tool helps you remember and count down to significant life events like anniversaries, birthdays, and important schedules. Receive timely reminders so you never miss a special occasion. Track both past and future important dates.

Mark important life daysCount down to eventsTrack past events
🔧 Utilities
(1)
free with in-app purchases
15
pi!
pi!
pi!
by Sijun Yang
Free
📚 Education
(0)
16
HyperPi Lite
HyperPi Lite
HyperPi Lite
Master the digits of Pi
Free
🎬 Entertainment
(0)
17
What's Today? Daily Calendar
What's Today? Daily Calendar
What's Today? Daily Calendar
Discover What Day It Is
Free
🔍 Reference
(0)
18
Name-day & Birthday Calendar
Name-day & Birthday Calendar
Name-day & Birthday Calendar
Name-days & birthdays at hand!
$2.99
🌟 Lifestyle
(0)
19
Barfday Tracker
Barfday Tracker
Barfday Tracker
by William Engel
$0.99
🔧 Utilities
(0)

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