Simple Date Calculator Downloads & RevenueSimple Date Calculator · App Store
日付計算機 - 日数計算・時間計算 広告なし・買い切り
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperZhiqi Pan
CategoryUtilities
Price150 JPY
Released
Rating★ 0.0 (0)
Version1.4
Age rating4+
First seen by us
9 Nov 2026
9 Nov 2026Simple Date Calculator update history & changes
Last change · 6 events since 15 Apr 2026Full timeline ↓Full timeline · 6 events
- 🆕Simple Date Calculator first spotted by AppInsider#27 in Top Paid · Utilities · Japan
- 📦Simple Date Calculator version 1.4Settings
- A Version & Roadmap page, from the (i) beside Help
Also fixed
- The app opens on your last answer instead of counting up to it
- With the dates the wrong way round, Include end date now shows as off, matching the count… more - 🆕Simple Date Calculator: its developer released another app: 大家都有空：跨时区会议时间
- 🆕Simple Date Calculator: its developer released another app: Aftershot 截图打码、标注、美化
- 🆕Simple Date Calculator: its developer released another app: Numline 会算数的记事本
- 🆕Simple Date Calculator released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Simple Date Calculator on the App Store
App details
App ID
6762223333
Publisher
Zhiqi Pan
On the store since
Apr 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
6
EN FR JA KO ZH ZH
Size
2 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Simple Date Calculator
Date Calculator makes it effortless to work with dates and time — three focused tools in one fast, private app.
DAYS BETWEEN
Find the exact difference between any two dates, broken down into days, weeks, months, and years — plus hours, minutes, and seconds. Choose whether to include the end date in your count. Perfect for counting down to events, tracking project timelines, or calculating someone's age.
ADD OR SUBTRACT DATES
Start from any date and add or subtract days, weeks, months, or years. Instantly see the resulting date, the day of the week it lands on, and how far it is from today. Great for figuring out deadlines, due dates, and future milestones. Tap any number to type an exact value — jump 1,000 days in one go.
TIME CALCULATOR
Add and subtract multiple time entries to get a running total. Enter hours and minutes across up to 20 entries and see the sum in both HH:MM and decimal hours. Ideal for tracking work hours, logging billable time, or totaling durations.
DESIGNED FOR SPEED
• Results update instantly as you adjust your inputs
• Your entries are saved between sessions
• Clean, distraction-free interface with light & dark mode
• Works fully offline
• No ads. No subscriptions. No account required.
Whether you're planning a project, counting the days until a trip, tracking work hours, or just need a quick date calculation — Date Calculator has you covered.
DAYS BETWEEN
Find the exact difference between any two dates, broken down into days, weeks, months, and years — plus hours, minutes, and seconds. Choose whether to include the end date in your count. Perfect for counting down to events, tracking project timelines, or calculating someone's age.
ADD OR SUBTRACT DATES
Start from any date and add or subtract days, weeks, months, or years. Instantly see the resulting date, the day of the week it lands on, and how far it is from today. Great for figuring out deadlines, due dates, and future milestones. Tap any number to type an exact value — jump 1,000 days in one go.
TIME CALCULATOR
Add and subtract multiple time entries to get a running total. Enter hours and minutes across up to 20 entries and see the sum in both HH:MM and decimal hours. Ideal for tracking work hours, logging billable time, or totaling durations.
DESIGNED FOR SPEED
• Results update instantly as you adjust your inputs
• Your entries are saved between sessions
• Clean, distraction-free interface with light & dark mode
• Works fully offline
• No ads. No subscriptions. No account required.
Whether you're planning a project, counting the days until a trip, tracking work hours, or just need a quick date calculation — Date Calculator has you covered.
Latest updates
1.4
Settings
- A Version & Roadmap page, from the (i) beside Help
Also fixed
- The app opens on your last answer instead of counting up to it
- With the dates the wrong way round, Include end date now shows as off, matching the count
