CalendarDC: reminder, widgets

Reminders, notes and aesthetic widgets, wallpapers

HA.KK Studio · com.venus.calendardc

Not rated yet 50K+ downloads v4.1.06 26.2 MB Android 7.0+ PEGI 3 · Everyone

Download APK 26.2 MB All versions

Signature matches the Google Play version Details

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At a glance

Latest version: v4.1.06 (246)
Updated: Oct 5, 2026 (5 days ago)
APK size: 26.2 MB
Requires: Android 7.0+ (API 24)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Jun 12, 2023 (at least)
Permissions: 22 (6 sensitive)
Website: lichvietpro.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

CalendarDC: reminder, widgets is an app by HA.KK Studio in the Tools category, listed since at least June 2023. It has no native code, so it runs on any Android processor.

Since version 4.0.64, the APK grew from 17.7 MB to 26.2 MB and the minimum Android version rose from 4.2 to 7.0. It asks for 22 permissions, 6 of them sensitive, including precise location, approximate location and read phone status and identity. It asks for the same permissions as version 4.1.05. The app offers in-app purchases through Google Play.

What's new in v4.1.06

Some update in this version: - Add more aesthetic widgets and wallpapers - Add functions to set widget for lock screen - Add more languages - Tuning UI, UX and application performance

Description

From the listing uploaded by “appupdater”.

CalendarDC is an calendar application without ads to manage your works, tasks and reminders. It supports many types of recurring by setting days, dates, months in solar calendar dates and chinese calendar dates. Moreover you can create task, reminder from the widget instantly. It has many beautify background to make the interface more interesting and not boring. Functions in the application: - Create task, event easily by one touch - Auto arrange time of task, note when creating new - Many type of recurring: by many days in week, month, year - Synchronize events from Google Calendar - Synchronize events with server and CalendarDC of desktop version - Many modes of screen to display events, tasks: by month, by week, by list,... - Include many history events and festivals of US, France, England, Korea, Japanese, Chinese ... - Beautiful and morden widget with events of the current day - Create event quickly from widget - Notify by app, email to involved persons of event - Exciting symbols for each event - Store of beautiful unique transparent widgets and wallpapers - Customize your calendar with in-app image package or your image in gallary. - It supports many languages: English, French, Japanese, Vietnamese, Korean, Thailand, Chinese, Russia ... - App does not have advertisement Download now and touch to manage your life.

Version history

7 versions are listed, going back to v4.0.64. Since v4.0.92 it requires Android 7.0+.

v4.1.06 LATEST Oct 5, 2026 26.2 MB TRUSTED v4.1.05 Sep 27, 2026 26.2 MB TRUSTED v4.1.04 Sep 26, 2026 26.2 MB TRUSTED v4.1.03 Sep 21, 2026 26.2 MB TRUSTED v4.0.92 Feb 16, 2026 25.6 MB TRUSTED

All 7 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 5, 2026.
Certificate issued to “HA2K company” This is the certificate of the Google Play version.
Same certificate as the 6 other versions checked

Store checks and file details

Developer signature verified Oct 5, 2026
Validated against Google Play Oct 5, 2026
Signed byCN=Hung Duong Viet, OU=RAD Dep, O=HA2K company, L=Hanoi, ST=Hanoi, C=084
Signing certificate (SHA-1)B7:00:A4:22:64:44:63:A0:BE:FB:B7:F6:38:4C:B1:80:4C:DC:D2:5D
File MD5a245bf100dfbdece0ee10d5b083e0df3
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 (6 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (22)

CalendarDC: reminder, widgets requests 22 permissions, 6 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Read calendar Sensitive android.permission.READ_CALENDAR
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Write calendar Sensitive android.permission.WRITE_CALENDAR
Authenticate accounts android.permission.AUTHENTICATE_ACCOUNTS
Control vibration android.permission.VIBRATE
Foreground service data sync android.permission.FOREGROUND_SERVICE_DATA_SYNC
Foreground service special use android.permission.FOREGROUND_SERVICE_SPECIAL_USE
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.venus.calendardc.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Set wallpaper android.permission.SET_WALLPAPER
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Location android.hardware.location
Wi-Fi android.hardware.wifi

CalendarDC: reminder, widgets APK: questions and answers

Is there a version of CalendarDC: reminder, widgets for older Android phones?

The current version needs Android 7.0 or later. Version 4.0.80 is the newest listed build that installs on Android 4.4 and later. Get version 4.0.80 · 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 CalendarDC: reminder, widgets free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the CalendarDC: reminder, widgets 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 6 other versions checked. After downloading, check that the file's MD5 is a245bf100dfbdece0ee10d5b083e0df3.