Calcifon Downloads & RevenueCalcifon · App Store
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperKauriLab Inc.
CategoryProductivity
PriceFree
Released
Rating★ 4.6 (26)
Version2.4
Age rating4+
First seen by us
23 Oct 2026
📦Updated to version 2.4📦First update in 413 days🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 6 events in the last 12 months
- ✏️Calcifon: app got smaller43 MB → 33 MB (-23%)
- ✏️Calcifon: needs a newer iOSiOS 15.0 → iOS 17.0
- 📦Calcifon updated to version 2.4- Added iOS 27.1 support and optimized the layout for iPhone Duo.
ver. 2.3
- Added iOS 26 support.
ver. 2.2
- Improved UIs
ver. 2.1
- Improved UIs
ver. 2.0
- Added iOS 18 support.
ver. 1.9
- Now you can copy & paste events on the daily schedule view.
- Fixed a bug where changes in events were sometimes not reflected in the widget.
ver. 1.8
- The setting for All-day will now use the previously set option.
- Improved UIs
ver. 1.7
- Improved UIs
ver. 1.6
- Added iOS 17 support.
- Now you can easily see events for the next month on the widget. (iOS 17 or later only)
ver. 1.5
- Font size adjustments are now supported.
ver. 1.3
- Premium users can now set a photo as the background of the main screen.… more - 📦Calcifon: first update in 413 days
- 🆕Calcifon first spotted by AppInsiderJapan (found via developer)
- 🆕Calcifon 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
4.6 ★
26 ratings
Measured
Calcifon on the App Store
App details
App ID
1641658581
Publisher
KauriLab
On the store since
Sep 2022
4 years on the store
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
33 MB
Also listed in
Utilities
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
4.6 ★
26 ratings
Measured
Ratings
26
Measured
About Calcifon
Calcifon is a simple and multiplatform schedule management app that stores and syncs events in cooperation with iOS calendars and Google Calendar.
■Calcifon features
- Simple and Intuitive
Simply slide left or right to switch month on the monthly schedule screen. Select a date and tap again to see a list of events for the day.
- Reschedule with Drag & Drop
Intuitively change the date of an event by drag & drop on the monthly schedule screen and also on the daily schedule screen.
- Colorful Events
Coloring events makes them easier to distinguish and helps you keep track of your schedule.
- Automatic Sync with iOS and Google Calendar
Sync events with iOS calendar and Google calendar, so the events can be synchronized across your Apple devices.
- Monthly & Daily Schedule View (Premium)
In the iPhone app, you can switch from the monthly schedule screen to the monthly & daily schedule screen.
- iPad App (Premium)
The schedule can be viewed on an iPad with a large screen.
- Weekly Schedule & Monthly Schedule View (Premium)
In the Mac app, you can switch from the main screen to the weekly schedule screen or monthly schedule screen.
- Setting a Background Image (Premium)
You can set a photo as the background of the main screen.
- Notification
Calcifon do not notify the notifications set for events. Notifications set to iOS calendar will be issued by the Apple’s calendar application, and notifications set to Google Calendar will be issued by Google with some notification methods, so please configure the notification settings on those applications.
- Calcifon Premium
Calcifon Premium is available with two purchase options: a monthly subscription, or a yearly subscription.
As for the subscription options, Calcifon Premium automatically renews as a paid subscription, unless cancelled at least 24 hours before the date of renewal. The payment will be charged to Apple ID Account at confirmation of purchase. Your account will be charged for renewal within 24-hours prior to the end of the current period. You can cancel subscription anytime by turning off auto-renewal through your account settings. This must be done 24 hours before the end of subscription period to avoid being charged. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the basic service.
We value the opinions of our users. We welcome your feedback.
- Privacy Policy: https://kaurilab.com/calcifon/privacy-policy
- Terms of Use: https://kaurilab.com/calcifon/terms-of-use
■Calcifon features
- Simple and Intuitive
Simply slide left or right to switch month on the monthly schedule screen. Select a date and tap again to see a list of events for the day.
- Reschedule with Drag & Drop
Intuitively change the date of an event by drag & drop on the monthly schedule screen and also on the daily schedule screen.
- Colorful Events
Coloring events makes them easier to distinguish and helps you keep track of your schedule.
- Automatic Sync with iOS and Google Calendar
Sync events with iOS calendar and Google calendar, so the events can be synchronized across your Apple devices.
- Monthly & Daily Schedule View (Premium)
In the iPhone app, you can switch from the monthly schedule screen to the monthly & daily schedule screen.
- iPad App (Premium)
The schedule can be viewed on an iPad with a large screen.
- Weekly Schedule & Monthly Schedule View (Premium)
In the Mac app, you can switch from the main screen to the weekly schedule screen or monthly schedule screen.
- Setting a Background Image (Premium)
You can set a photo as the background of the main screen.
- Notification
Calcifon do not notify the notifications set for events. Notifications set to iOS calendar will be issued by the Apple’s calendar application, and notifications set to Google Calendar will be issued by Google with some notification methods, so please configure the notification settings on those applications.
- Calcifon Premium
Calcifon Premium is available with two purchase options: a monthly subscription, or a yearly subscription.
As for the subscription options, Calcifon Premium automatically renews as a paid subscription, unless cancelled at least 24 hours before the date of renewal. The payment will be charged to Apple ID Account at confirmation of purchase. Your account will be charged for renewal within 24-hours prior to the end of the current period. You can cancel subscription anytime by turning off auto-renewal through your account settings. This must be done 24 hours before the end of subscription period to avoid being charged. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the basic service.
We value the opinions of our users. We welcome your feedback.
- Privacy Policy: https://kaurilab.com/calcifon/privacy-policy
- Terms of Use: https://kaurilab.com/calcifon/terms-of-use
Latest updates
2.4
- Added iOS 27.1 support and optimized the layout for iPhone Duo.
ver. 2.3
- Added iOS 26 support.
ver. 2.2
- Improved UIs
ver. 2.1
- Improved UIs
ver. 2.0
- Added iOS 18 support.
ver. 1.9
- Now you can copy & paste events on the daily schedule view.
- Fixed a bug where changes in events were sometimes not reflected in the widget.
ver. 1.8
- The setting for All-day will now use the previously set option.
- Improved UIs
ver. 1.7
- Improved UIs
ver. 1.6
- Added iOS 17 support.
- Now you can easily see events for the next month on the widget. (iOS 17 or later only)
ver. 1.5
- Font size adjustments are now supported.
ver. 1.3
- Premium users can now set a photo as the background of the main screen.
2.3
- iOS 26 is now supported.
ver. 2.2
- Improved UIs
ver. 2.1
- Improved UIs
ver. 2.0
- iOS 18 is now supported.
ver. 1.9
- Now you can copy & paste events on the daily schedule view.
- Fixed a bug where changes in events were sometimes not reflected in the widget.
ver. 1.8
- The setting for All-day will now use the previously set option.
- Improved UIs
ver. 1.7
- Improved UIs
ver. 1.6
- iOS 17 is now supported.
- Now you can easily see events for the next month on the widget. (iOS 17 or later only)
ver. 1.5
- Font size adjustments are now supported.
ver. 1.3
- Premium users can now set a photo as the background of the main screen.
Store changes
What Calcifon changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got smaller
43 MB → 33 MB (-23%)
Needs a newer iOS
iOS 15.0 → iOS 17.0