Day Calculation vs Date Calculation Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Day Calculation
Easily determine the number of days between two specific dates. This tool also calculates an end date based on a starting date and a specified duration. It offers options to include or exclude the first day in the calculation.
- Calculate difference between two dates
- Calculate end date from start date and period
- Set days inclusive
- Exclude first day option
- Free to use
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【Day Calculator】 1. Quickly calculate the difference between two dates. 2. Calculate End Date based on the given Period and Starting Date. 3. Allow free setting of [both days inclusive] and [exclude first day]
Date Calculation Assistant
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Date Calculation Assistant helps you perform date calculations quickly and easily. Key Features: • Date Difference: Calculate the number of days between two dates. Select a date range and instantly see the result. • 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. • 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. • 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
Screenshots
Verdict
The clearest difference is in-app purchases: Day Calculation at none against Date Calculation Assistant's 2. Day Calculation also leads on iOS requirement (11.0 vs 15.0). Date Calculation Assistant's advantage is update cadence (every 5 days vs every 6 weeks). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Date Calculation Assistant sells 2 in-app purchases, starting at $0.99 per month. Day Calculation asks for nothing beyond the download.
Day Calculation ships an update every 6 weeks, Date Calculation Assistant every 5 days. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.
| Parameter | Day Calculation | Date Calculation Assistant |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 12 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Huaping Ye | 玉辉 黄 |
In-app purchases
Day Calculation
No in-app purchases
Date Calculation Assistant
- Monthly Subscription$0.991 Month
- Yearly Subscription$5.991 Year
Questions
Is Day Calculation free?
Is Date Calculation Assistant free?
Do Day Calculation or Date Calculation Assistant have ads?
Which is updated more often, Day Calculation or Date Calculation Assistant?
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