DateCalcMemo ～ how many days vs Clock4Key World Clock Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DateCalcMemo ～ how many days
Calculate the number of days between two dates or determine a future or past date based on a given number of days. Save important calculation results with associated notes.
- Calculate days between two dates
- Calculate future/past dates
- Save calculation results
- Add notes to saved calculations
- Delete app data when app is removed
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---------------------------------------- - Add a mode to calculate the number of days between two dates - Add a mode to calculate the date of the date the number of days before or after ※ note. The results is not saved in the above modes. ---------------------------------------- Usually, "I wonder how many years passed since then," Do not you think? · Since you have moved · Since you graduated from school · Since the beginning of something new · Etc ... This application calculate the one below. · How many days have passed from the specified date · In how many days until the specified date You can save results of the calculation along with some words. ※ Please note that it also delete the data if you remove the app.
Clock4Key World Clock Keyboard
This custom keyboard allows users to quickly input the current time for major cities worldwide directly from their device's keyboard. It offers real-time global time updates and an intuitive design for efficient time zone coordination.
- Instant time input for global cities
- Real-time worldwide time updates
- Seamless keyboard integration
- Avoids manual time conversions
- Ideal for travelers and professionals
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World Clock Keyboard is a powerful iOS app designed to simplify the process of entering the current time for famous cities worldwide. This custom keyboard is ideal for anyone who frequently needs to know or share international times, offering convenience and speed at your fingertips. Key Features: - Instant Time Input: Quickly enter current times for major cities worldwide directly from your keyboard. - Global Coverage: Get real-time updates for numerous cities, ensuring accurate information. - User-Friendly: Intuitive design seamlessly integrates with your device’s keyboard. - Efficient: Save time by avoiding manual time conversions and app switching. - Traveler-Friendly: Perfect for globetrotters, business professionals, and anyone coordinating across time zones.
Screenshots
Verdict
The clearest difference is update cadence: Clock4Key World Clock Keyboard at daily against DateCalcMemo ～ how many days's fortnightly. Clock4Key World Clock Keyboard also leads on monetization model (free vs free with in-app purchases). DateCalcMemo ～ how many days's advantage is ratings volume (6 vs 1) and iOS requirement (8.0 vs 15.0). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for DateCalcMemo ～ how many days against 5.0 for Clock4Key World Clock Keyboard. That said, the two scores are not equally well evidenced: DateCalcMemo ～ how many days has 6 ratings behind it against 1, so its average is the more settled of the two.
DateCalcMemo ～ how many days ships an update fortnightly, Clock4Key World Clock Keyboard daily. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | DateCalcMemo ～ how many days | Clock4Key World Clock Keyboard |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) | 5.0 (1 ratings) |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 6 — better | 1 |
| Update frequency | Fortnightly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | TOSHIYUKI SEKIZAKI | Khang Le |
Customer experience
DateCalcMemo ～ how many days
Clock4Key World Clock Keyboard
In-app purchases
DateCalcMemo ～ how many days
No in-app purchases
Clock4Key World Clock Keyboard
No in-app purchases
Questions
Is DateCalcMemo ～ how many days free?
Is Clock4Key World Clock Keyboard free?
Which has better reviews, DateCalcMemo ～ how many days or Clock4Key World Clock Keyboard?
Do DateCalcMemo ～ how many days or Clock4Key World Clock Keyboard have ads?
Which is updated more often, DateCalcMemo ～ how many days or Clock4Key World Clock Keyboard?
Other comparisons
