Date Calculator vs WhenReset
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Date Calculator
Calculate the precise time difference between any two dates, down to the second. This utility also allows for adding or subtracting specific time intervals from a given date.
- Calculate date intervals
- Add/subtract dates
- Support for days, weeks, months, years
- Support for hours, minutes, seconds
- iOS 14 design style
- Dark mode support
Read full descriptionHide full description
Date Calculator answers two everyday questions fast: how many days are there between two dates, and what date is it after adding or subtracting a period? DAYS BETWEEN TWO DATES • Pick a start and an end date and see the gap as days, weeks, months and years • An exact "2 years 6 months 23 days" breakdown, not rough 30-day months • Workdays (Mon–Fri) and weekend days counted for you • Optional "count the end day too" for inclusive counting • Hours, minutes and seconds, plus one-tap swap and Today shortcuts ADD OR SUBTRACT TIME • Add or subtract years, months, weeks and days from any date • Results update live as you type, with the weekday, the day of the year and how far away it is • Presets for 1 week, 30 days, 90 days, 100 days, 6 months and 1 year • Workdays mode skips weekends, handy for deadlines, delivery times and notice periods (public holidays are not excluded) • Month ends are handled properly: 29 Feb + 1 year = 28 Feb, 31 Jan + 1 month = 28 Feb Clean native design, dark mode, English and Simplified Chinese, iPhone and iPad. Share any result with one tap. The app is free with ads.
WhenReset
Read full descriptionHide full description
Track remaining allowances and reset times for various AI coding plans from one simple dashboard. WhenReset shows the remaining percentage and countdown for supported usage windows, including short-term limits, weekly limits, additional model quotas, and banked-reset expirations when available. FEATURES • Multiple accounts and coding plans • Home Screen and Lock Screen widgets • A single global Live Activity with Dynamic Island support • Configurable limits for each account • Minute-friendly reset countdowns • 24-hour, 7-day, and 30-day usage history • Scheduled and unexpected-reset notifications • Randomized demo mode that works without an account • Credentials stored in the iOS Keychain Availability and reported quota details depend on each plan provider and may change. WhenReset connects directly from your device to the provider you choose. Kitta Ltd does not receive your provider credentials or usage snapshots. WhenReset is an independent utility and is not affiliated with or endorsed by the plan providers it supports. Product names and logos are trademarks of their respective owners.
Screenshots
Verdict
The clearest difference is ads: WhenReset at none against Date Calculator's shown. WhenReset also leads on update cadence (every 8 days vs every 35 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
Date Calculator ships an update every 35 months, WhenReset every 8 days. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.
| Parameter | Date Calculator | WhenReset |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 35 months | Every 8 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 阳 孙 | Kitta Co. |
In-app purchases
Date Calculator
No in-app purchases
WhenReset
No in-app purchases
