DayChecker
DayChecker Summary
DayChecker is a ad-supported Android app in Tools by Hirotaka Takayama. Released in Jun 2023 (2 years ago). It has about 1.9K+ installs Based on AppGoblin estimates, it reaches roughly 256 monthly active users and generates around $<10K monthly revenue (0% IAP / 100% ads). Store metadata: updated Mar 17, 2026.
Recent activity: 100 installs this week (332 over 4 weeks) showing exceptional growth View trends →
Store info: Last updated on Google Play on Mar 17, 2026 .
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Ratings: 0
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App Description
Discover date X days ago or in the future, and find days between two dates
This app allows you to check a date from the calendar X days ago or in the future, and determine the number of days between two selected dates. You can discover celebration dates or special events at a glance.
The summary of two modes:
Mode: Calculate the date X days ago or later
- Utilize this mode to determine the date that falls X days before or after a given start date, along with the corresponding day of the week.
Mode: Calculate the days between two dates
- Utilize this mode to calculate the precise number of years, months, weeks, and days between two specified dates.
The summary of features:
- Select a date from the calendar
- Date checker
- Day checker
- No special permissions are required
- No internet connection is needed
- Share results on social media (SNS) when connected to the internet
- User-friendly design
- Made in Japan
- Completely free
Experience the convenience of DayChecker, a free app that puts date checking at your fingertips. Have you ever wondered what date it will be 10,000 days after your birthday? DayChecker can provide the answer!