CalEF (Calendar Entry Formatter) icon

CalEF (Calendar Entry Formatter) APK GPL-3.0-or-later

Create and send Appointment-Confirmation-Message from Android-Calendar-Entry.

Download APK (621.4 KB)

Version (6)
Time, System
Source Code
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CalEF (Calendar Entry Formatter) app

CalEF (Calendar Entry Formatter) is Time tool that is open source under the GPL-3.0-or-later license.

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).


  • Android-4.4 (api 19) or later.

  • Permissions : None

Compatible with

Old Versions