Best Iintelligencetester4 Apps & Games

250+ iOS apps & games curated and reviewed

4.8 avg rating

19 free apps & games

Updated October 2026

Finding the right iintelligencetester4 apps and games can be overwhelming with so many options. We've analyzed 250+ apps and games to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Iintelligencetester4 Apps & Games (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	iIntelligenceTester4	$0.99	—	No	No	Oct 2026
2	Days between Dates	Free	4.2★ (19)	No	Yes	Aug 2026
3	Chronophoto	Free	5.0★ (6)	No	No	Oct 2026
4	Calendarium - About this Day	Free	4.7★ (2.2K)	No	No	Oct 2026
5	Friday App	Free	4.8★ (32)	No	No	Jul 2026
6	Islamic Calendar - Hijri Date	Free	—	Yes	Yes	Aug 2026
7	Calendar	Free	4.9★ (1.5M)	No	No	Oct 2026
8	Day 4 — A Witness of Time	Free	5.0★ (12)	No	Yes	Oct 2026

Top Picks for Iintelligencetester4

#1

iIntelligenceTester4 by Nicholas Wilson

Editor's Choice

0.0(0 ratings)

$0.99

iIntelligenceTester4 screenshot 1

iIntelligenceTester4 screenshot 2

#2

Days between Dates by William Jockusch

Strong Contender

4.2😐(19 ratings)

FreeIn-App Purchases

Days between Dates screenshot 1

Days between Dates screenshot 2

Days between Dates screenshot 3

Days between Dates screenshot 4

Calculate the exact number of days between any two dates. Easily select your dates using intuitive dials. Also provides breakdowns in weeks and days, months and days, or years, months, and days.

What We Love

👍 Simple and easy to use
🚀 Calculates days accurately
💡 Useful for planning and work
✨ Elegant and straightforward design
💰 Free to use
✅ Does what it says
💯 Quality of life improvement
🎯 Exactly what users are looking for

Room to Improve

🐛 Date fields switch unexpectedly
🐛 App does not retain start date
🐛 In-app purchase for ads not working
🎨 User interface is terrible
📱 Not optimized for newer iPhones
🤔 Calculation can be 1 day off for some users
🎨 Needs better color choices for viewing modes

#3

Chronophoto by Weston Tuescher

Guess the year. Bet you can't.

Worth Considering

5.0(6 ratings)

Free

Chronophoto screenshot 1

Chronophoto screenshot 2

Chronophoto screenshot 3

Chronophoto screenshot 4

Guess the year a historical photograph was taken. Compete in daily challenges, memory rounds, or with friends. It's a quick and addictive game for the curious.

More Iintelligencetester4 apps to explore

Calendarium - About this Day

Calendarium - About this Day

Calendarium - About this Day

This day Now and in History

Discover historical events, holidays, and astronomical data for any given day. This app provides daily insights into history, sunrise/sunset times, moon phases, and planetary alignments without requiring an internet connection.

On this day in historySunrise and sunset timesPlanets alignment view

Employee Time Tracking

This app allows employees to clock in and out of work and view their timesheets remotely. Access is granted only if your employer uses the FRIDAY system and has added you as a user. It's designed for on-the-go time management.

Clock in/outGeofencingView timesheets

Islamic Calendar - Hijri Date

Islamic Calendar - Hijri Date

Islamic Calendar - Hijri Date

Muslim Events, Ramadan 2026

Organize your entire schedule in one place. View events from multiple accounts, manage tasks, and plan gatherings with others. Stay on top of appointments, holidays, and birthdays with customizable views and shared calendars.

Unified schedule viewEvent creation and editingTask management integration

📊 Productivity

Day 4 — A Witness of Time

Day 4 — A Witness of Time

Day 4 — A Witness of Time

Biblical calendar & prayer

This app provides a sacred 364-day calendar for tracking appointed times, prayer, and scripture. It includes daily verses, feast explanations, and biblical hours of prayer, with features for observing celestial events and personal anniversaries.

364-day sacred calendarAppointed times and feastsBiblical hours of prayer

Jantari - جنتری

Jantari - جنتری

Jantari - جنتری

Afghan Calendar

This app provides a comprehensive calendar experience, displaying dates in Gregorian, Shamsi, and Qamari formats. It includes a date converter, lists public holidays and occasions, and offers weather forecasts and prayer times. Users can also add personal notes.

Gregorian, Shamsi, Qamari date displayDate conversion toolAfghanistan public holidays

📊 Productivity

Original Jewish Calendar

Original Jewish Calendar

Original Jewish Calendar

by Frank Yellin

Convert between Gregorian and Jewish calendars for any date, past or future. Easily find holidays and significant dates for hundreds of years.

Gregorian to Jewish calendar conversionJewish to Gregorian calendar conversionHoliday lookup

Orthodox Calendar

Orthodox Calendar

Orthodox Calendar

by David Leselidze

This app provides a comprehensive Orthodox Christian calendar, featuring daily scripture readings, lives of saints, icons, and liturgical hymns. It includes information on feasts, fast days, and days of remembrance, with support for the Julian "Old Calendar" version.

Lives of saintsIconsTroparions and kontakions

Julian - Quick Dates

Julian - Quick Dates

Julian - Quick Dates

Julian dates at a glance

This app provides a quick and efficient way to view and convert between 11 different types of dates, including standard Julian dates, Mars Sol dates, and Unix time. It features a calendar for easy navigation and allows copying dates to the clipboard. The current date can be displayed on the app icon and Apple Watch complications.

11 date type conversionsCalendar viewCopy to clipboard

free with in-app purchases

Glance — Daily Calendar

Glance — Daily Calendar

Glance — Daily Calendar

by Yoseph Bagighni

This app presents your calendar events in a clean, uncluttered agenda format, grouped by day. It integrates with existing calendars without requiring new accounts or sign-ins, offering a simple and private way to view your schedule.

Clean agenda viewGrouped by dayWorks with existing calendars

📊 Productivity

Daily History: Stories & Facts

Daily History: Stories & Facts

Daily History: Stories & Facts

One Incredible Story Every Day

Discover one deeply researched and engaging history story each day. Enjoy immersive reading or listening experiences with beautiful design and no distractions. Build a daily streak and share fascinating insights with friends.

One story dailyAudio narrationImmersive reading experience

Date and Time Calculator

Date and Time Calculator

Date and Time Calculator

Calculate the exact number of days, hours, and seconds between any two dates. This tool also allows you to find the date before or after a specified period, making it useful for tracking deadlines, events, or financial products.

Calculate time between any two datesSecond-level precisionCalculate future dates

Ethiopian Calendar

Ethiopian Calendar

Ethiopian Calendar

Track dates and holidays with this comprehensive Ethiopian calendar app. It offers date conversion, event scheduling across multiple calendar systems, and customizable reminders for various cultural and religious observances.

Ethiopian and Gregorian calendar displayDate conversionEvent scheduling across 6 calendar cycles

free with in-app purchases

Ethiopian Calendar & Converter

Ethiopian Calendar & Converter

Ethiopian Calendar & Converter

Holidays, Reminders, Prayers

This app provides a comprehensive Ethiopian calendar, including Orthodox holidays, fasting days, and national events. It features a date converter, time zone adjustments, and reminders for birthdays and significant dates. Additional utilities like a calculator, notes, and world clock enhance its functionality.

Ethiopian Orthodox holidays and fasting daysDate and time converter (Ethiopian to local/vice versa)Birthday and event reminders

📊 Productivity

万年历-日历农历天气查询工具

中华老黄历宜忌查询

This app offers a comprehensive calendar experience, including traditional Chinese almanac information, holiday schedules, and weather forecasts. It also provides tools for managing personal events and schedules, ensuring you stay organized and informed about important dates and daily activities.

Holiday and solar term lookupTraditional Chinese almanac (daily auspicious/inauspicious)Weather forecasts

📊 Productivity

free with in-app purchases

This Date In History *

This Date In History *

This Date In History *

by LaGuardia & Wagner Archives

Discover significant U.S. historical events that occurred on any given day. Explore milestones related to your birthday, holidays, or any date you choose. Browse the comprehensive database of historical facts.

Daily U.S. historical eventsEvents for birthdays and holidaysBrowse historical milestones

Countdown Timer: Day Counter

Countdown Timer: Day Counter

Countdown Timer: Day Counter

Tracker of Time Until Event

Track time remaining until important events or time elapsed since a past event. Receive notifications when a countdown expires. This app offers a simple, ad-free experience for managing your time.

Countdown timerCount-up timerEvent tracking

📊 Productivity

FAQ about Iintelligencetester4

Are there free iintelligencetester4 apps & games for iPhone?

Yes — 19 of the top iintelligencetester4 apps & games we rank are free to download, including Days between Dates and Chronophoto.

Does iIntelligenceTester4 have ads or in-app purchases?

iIntelligenceTester4 has no ads and has no in-app purchases, according to its App Store listing as of October 2026.

How many iintelligencetester4 apps & games are on the App Store?

We track 250+ iintelligencetester4 apps & games on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.