Productivity · Open source
CalEF (Calendar Entry Formatter)
k3b
Create and send Appointment-Confirmation-Message from Android-Calendar-Entry.
Opens the official F-Droid page
About CalEF (Calendar Entry Formatter)
Making an appointment means
Add date, time and title of the appointment to the Android-Calendar
In Android-Calendar-Detailview use Send/Share (from menu or toolbar)
Select "CalEF" as share destination (to convert to human readable text)
Select the final Send/Share destination (clipboard, sms, mail, ...)
Usually calendar entries are shared in a human-unreadable technical format
"ICS" (or "VCS") that calendar programs can read.
CalEF receives the technical format and re-sends/re-shares it-s content as human readable text.
Date/Time is formatted according to current language/locale.
CalEF can also process "ics" (or "vcs") files (i.e. from a calendar backup).
Requirements:
Android-4.4 (api 19) or later.
Permissions : None
Compatible with
Etar-Calendar version 1.0.29 or later (January 2022)
Simple-Calendar version 4.0.0 or later (May 2018)
Buildin Android-Calender (Tested with android-10 on LG device)
Backup Calendar Import-Export version 2.4 or later (November 2016)
What's new in 1.1.2.1
Changes from Version 1.1.2(5) 7/2022 to 1.1.2.1(6) 12/2023 Maintanance: Updated libs. No new features or bugfixes * android-gradle 4.1.3->8.1.1 * compileSdkVersion 30->34 * ical4j 2.2.6->2.2.7 * commons-codec 1.11-> 1.16.0 * slf4j 1.7.32->2.0.9 Build Goals: * stay compatible with Android4.0 (api-14) * remain minimal apk-size (java-8, no Java-11+desugaring-lib)
How to install CalEF (Calendar Entry Formatter)
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open CalEF (Calendar Entry Formatter) from your app drawer.

