Etar - OpenSource Calendar

Etar is a material designed open source calendar, for everyone!

Suhail سهيل الكويليت · ws.xsoh.etar

4.8 out of 5 (5 ratings) 50K+ downloads v1.0.57 8.8 MB Android 6.0+ PEGI 3 · Everyone

Download APK 8.8 MB All versions

Signature matches the Google Play version Details

Etar - OpenSource Calendar screenshot 10

Etar - OpenSource Calendar screenshot 11

At a glance

Latest version: v1.0.57 (57)
Updated: Aug 29, 2026 (1 month ago)
APK size: 8.8 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Productivity (app)
Listed since: Jan 19, 2021 (at least)
Permissions: 15 (4 sensitive)
Website: github.com/xsoh/Etar-Calendar
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Etar - OpenSource Calendar is an app by Suhail سهيل الكويليت in the Productivity category, listed since at least January 2021. It has no native code, so it runs on any Android processor.

Since version 1.0.35, the APK grew from 6.6 MB to 8.8 MB and the minimum Android version rose from 5.0 to 6.0. It asks for 15 permissions, 4 of them sensitive, including read contacts, find accounts on the device and read calendar. Compared with version 1.0.47, it adds 2 new permissions (“Run at startup” and “View network connections”) and drops 2 (“Foreground service data sync” and “Modify shared storage”).

Ratings

4.8out of 55 ratings

5 ★80%
4 ★20%
3 ★0%
2 ★0%
1 ★0%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v1.0.57

- Multiple enhancements. - Add url field - Bugfixes - New translations

Description

From the listing uploaded by “appupdater”.

Features: - Month view. - Week, day & agenda view. - Uses Android calendar sync. Works with Google Calendar, Exchange..etc. - Material design. - Dark & Light Theme. - Offline Calendar - Free, open source and absolutely no Ads. - Support sharing calendars via ics and the ability to import/export from sdcard. Bugs & feedback: https://github.com/Etar-Group/Etar-Calendar/issues Source Code: https://github.com/Etar-Group/Etar-Calendar

Version history

3 versions are listed, going back to v1.0.35. Since v1.0.47 it requires Android 6.0+.

v1.0.57 LATEST Aug 29, 2026 8.8 MB TRUSTED v1.0.47 Aug 11, 2026 7.1 MB TRUSTED v1.0.35 May 4, 2026 6.6 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 29, 2026.
Certificate issued to “xsoh” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 29, 2026
Validated against Google Play Aug 29, 2026
Signed byCN=Suhail Alkowaileet, OU=xsoh, O=xsoh, L=Riyadh, ST=Riyadh, C=SA
Signing certificate (SHA-1)6D:62:88:D2:54:5C:F0:BF:39:1F:11:34:72:C8:F8:68:0A:01:6C:32
File MD5f8a15794d9b0defa0b6d05d7d7cd944f
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (15)

Etar - OpenSource Calendar requests 15 permissions, 4 of them sensitive.

Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
Read calendar Sensitive android.permission.READ_CALENDAR
Read contacts Sensitive android.permission.READ_CONTACTS
Write calendar Sensitive android.permission.WRITE_CALENDAR
Control vibration android.permission.VIBRATE
Foreground service system exempted android.permission.FOREGROUND_SERVICE_SYSTEM_EXEMPTED
Internal broadcast protection (app-defined) ws.xsoh.etar.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Read sync settings android.permission.READ_SYNC_SETTINGS
Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Etar - OpenSource Calendar APK: questions and answers

Is there a version of Etar - OpenSource Calendar for older Android phones?

The current version needs Android 6.0 or later. Version 1.0.35 is the newest listed build that installs on Android 5.0 and later. Get version 1.0.35 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Etar - OpenSource Calendar APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is f8a15794d9b0defa0b6d05d7d7cd944f.