Comparison

Date Calculation Assistant vs Date Calculator

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

Head to head
About

Date Calculation Assistant

Features
Read full description

Date Calculation Assistant helps you perform date calculations quickly and easily. Key Features: โ€ข Date Difference: Calculate the number of days between two dates. Select a date range and instantly see the result. โ€ข Date After: Calculate the date N days after a given date. Pick a base date, enter the number of days, and get the target date. โ€ข Date Before: Calculate the date N days before a given date. Pick a base date, enter the number of days, and get the target date. โ€ข Calculation History: All calculations are saved automatically. Browse, review, and reuse your past results in the History tab of each feature. Use Cases: - Plan project timelines and deadlines - Count days until or since important events - Calculate ages and durations - Plan travel or event dates - Track days between appointments or milestones Date Calculation Assistant features an intuitive interface with Calculator and History tabs for each tool, making date math simple and efficient. Terms of Use: https://date-calculator-2cf52.web.app/#/eula

About

Date Calculator

Features
Read full description

How many days between two dates? Get the exact answer in one tap โ€” no counting squares on a calendar, no math in your head. Pick a start date and an end date, and DateDiff breaks the gap down into every unit at once: years, months, weeks, and days, plus total days, total weeks, total months, and total hours. It works the other way too โ€” add or subtract days, weeks, months, or years from any date to land on the exact day you need. Every result is calculated on-device and stays accurate across leap years and century rules. WHAT YOU GET - The precise span between any two dates in years, months, weeks, and days, all shown together - Add or subtract time to find a future or past date instantly - Business-day counting that skips weekends and imported holidays - Country holiday packs plus your own custom days off, so workday counts match your calendar - Saved date pairs with upcoming milestones and live countdowns to the days that matter - A plain-text export of your saved calculations to share or keep PERFECT FOR - Planners counting down to a trip, wedding, or big event - Anyone working out an exact age from a birth date - Project managers tracking deadlines in real working days - Curious minds settling "how long ago" and "how far away" questions WHY NOT JUST COUNT ON A CALENDAR Flipping through months and tallying days is slow and easy to get wrong โ€” one skipped weekend or forgotten leap day throws the whole number off. DateDiff does the counting for you and stays exact every time, including the weekend and holiday skips that hand-counting always misses. PRIVACY Everything stays on your device. No account, no ads, no tracking โ€” the app works fully offline. FULL ACCESS DateDiff Pro unlocks workday and business-day counting, country and custom holiday packs, saved date pairs, upcoming milestones, and export. It is available as a weekly or yearly subscription, or a one-time lifetime purchase. The date difference and add/subtract calculators are free to use. Stop counting on your fingers โ€” get the exact answer in one tap. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? https://web-levi.web.app/#contact

Screenshots

Date Calculation Assistant4 screens
Date Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Date Calculator at none against Date Calculation Assistant's 2. Date Calculation Assistant's advantage is update cadence (every 5 days vs every 3 months) and device support (3 vs 1). On price and ads 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. Date Calculation Assistant sells 2 in-app purchases, starting at $0.99 per month. Date Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Date Calculation Assistant ships an update every 5 days, Date Calculator every 3 months. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

Scorecard4 real differences ยท 2 level
Date Calculation Assistant versus Date Calculator: the parameters behind the verdict, then further details
ParameterDate Calculation AssistantDate Calculator
PriceFreeFree
Update frequencyEvery 5 days โ€” betterEvery 3 months
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size35 MB5 MB
Age rating4+4+
Developer็މ่พ‰ ้ป„Phuc Pham

In-app purchases

2 purchases

Date Calculation Assistant

Subscriptions2
  • Monthly Subscription$0.991 Month
  • Yearly Subscription$5.991 Year
None

Date Calculator

No in-app purchases

Questions

Is Date Calculation Assistant free?
Date Calculation Assistant is free to download, with in-app purchases available.
Is Date Calculator free?
Date Calculator is free to download, with no in-app purchases.
Do Date Calculation Assistant or Date Calculator have ads?
Neither Date Calculation Assistant nor Date Calculator shows ads.
Which is updated more often, Date Calculation Assistant or Date Calculator?
Date Calculation Assistant ships an update every 5 days, and Date Calculator every 3 months. Most recently, Date Calculation Assistant was updated on October 18, 2026 and Date Calculator on October 8, 2026.

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