Date Wheel date calculator
by Creative Algorithms
- Business
- Paid
- Zombie
- Small & simple · 93
- Rating
- 4.7
- 97 ratings · US storefront
- Top 82%among 122 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 methodScreenshots
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.
- 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 Norway charts. #1 is at the top.
- Best rank
- #2
- Current rank
- #2
- 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 worksVersion history
- 1.9.0LatestReleased Sep 16, 2015