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Date Wheel date calculator

by Creative Algorithms

  • Business
  • Paid
  • Zombie
  • Small & simple · 93
View on the App Store
Rating
4.7
97 ratings · US storefront
Top 85%among 152 Business apps
Last update
Sep 16, 2015
Version 1.9.0
Size
3 MB
Category
Business
Tracked since
Oct 10, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

Date Wheel™ is an award-winning date calculator that calculates time between two dates in months, weeks, days, & business days. ● Save calculations for future reference. ● Countdown to an important date or event.

If you want to try before you buy, check out our free web version at: http://datewheel.net

With Date Wheel™, you can:

  • Calculate shipping time in business days
  • Calculate tooling timing in weeks
  • Determine when to schedule your next appointment
  • Determine your pregnancy due date, track how far along you are, then track the age of your newborn in weeks, days, or months
  • Determine when a project should start, then figure out how long a project is overdue

Use for both business & personal applications— anytime you need to quickly calculate the time between two dates. DateWheel was designed by a former project manager.

FEATURES

  • Calculates end date, start date, or duration in REAL TIME—oldest field automatically updates. Great for tweaking dates and duration.
  • Time units in months, weeks, days, & business days
  • Save calculations for future reference. Flick thru saved calcs or directly select a calc. Reorder or edit.
  • Use locks to to keep preferred area constant
  • Enter dates & duration manually, or increment using arrow buttons
  • Single arrow buttons increment/decrement by one day, double arrows by one week for easy changes to original entries
  • Use Today checkbox to go quickly to today's date or to create a countdown by checking the box by the start date. Field updates daily to count down to an event.
  • Use the Today checkbox in the end date to daily track how long a task is taking or how old someone is. Field updates daily and increments duration.
  • Intuitive user interface, fine-tuned from years of customer user feedback
  • View day-of-the-week for start & end dates
  • Financial (30 day) months with three decimal places
  • Support for VoiceOver
  • Backup on iTunes or iCloud Backup
  • Also supports iPhone 6 and 6+

APPLICATIONS

  • Project Planning
  • Program Management
  • Lead Time estimating
  • Countdown days before important events, such as wedding, vacation or other major event
  • Time Management
  • Court date & contract planning
  • Financial forecasting
  • Medical timing as in pregnancy due dates
  • Insurance timing, such as disability dates
  • Commonly used in Automotive, Construction, Real Estate, Insurance, & Medical Industries
  • Track when shipments are due to arrive
  • Project when events are expected to start
  • Calculate how long something is overdue
  • Figure out when to schedule your next haircut
  • Count down the days until your next paycheck
  • Find the day of the week for any past, present, or future date
  • Calculate the Julian date of any day by setting start date to 12/31

TESTIMONIALS
"I've tried several date calculators and keep coming back to Date Wheel. It has the best user interface."-DM

"I LOVE [Date Wheel] and rely on it as an attorney to circumvent going beyond any due dates."-Jason A

"I...recommend it to anyone working with schedules on a [mobile]. Date Wheel is the most critical and utilized application on my [mobile]."-MJL

"One of my favourite programs and I find it mighty useful."-Sammy McLoughlin, PalmAddict

"...the best date calculator around"-Joel

"Deceptively simple yet precise program"-Kevin Agot

"...A useful tool for project planning, time management, estimating lead times, (to) count down to an important event, estimate shipping and arrival times, determine the exact age of a relative or friend...Ever try to calculate these kinds of things in your head or using a calendar?"-Handheld Computing

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Also by Creative Algorithms:

  • Trip Boss™ travel manager, available in 4 editions
  • Serving Sizer™ recipe manager, available in 2 editions for iPhone, one for iPad

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What’s new

Release notes for the latest version, as written by the developer.

v1.9.0
  • Added support for iOS9.
  • Fixed iOS9 date picker bugs.
  • Added support for iPhone 6s and 6s+
  • Misc. bug fixes, enhancements, and optimizations

Thank you for the positive feedback! As each update resets the ratings, please take the time to update your review, or to add a new one. Thank you!

Keep informed by becoming a fan on Facebook: http://www.facebook.com/CreativeAlgorithms

Rank history

Daily position in the Australia charts. #1 is at the top.

Best rank
#79
Current rank
#81
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

93/100

Small & simple

  • Developer size70% · 25

    Developer: 2 apps on the charts

  • Audience size100% · 20

    Ratings: 5

  • App size100% · 10

    Size: 3 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #2, 18 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 1.9.0LatestReleased Sep 16, 2015