Business Calendar

Professional calendar app with widgets for Google Calendar, Outlook & Exchange

Appgenix Software · netgenius.bizcal

3.7 out of 5 (3 ratings) 5M+ downloads v1.6.1.6 8.3 MB Android 4.4+ PEGI 3 · Everyone

Download APK 8.3 MB All versions

Signature matches the Google Play version Details

Watch the Business Calendar trailer on YouTube

At a glance

Latest version: v1.6.1.6 (161600)
Updated: Sep 30, 2026 (8 days ago)
APK size: 8.3 MB
Requires: Android 4.4+ (API 19)
CPU support: Any (no native code)
Category: Productivity (app)
Listed since: May 21, 2013 (at least)
Permissions: 14 (5 sensitive)
Website: businesscalendar.de
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Business Calendar is an app by Appgenix Software in the Productivity category, listed since at least May 2013. It has no native code, so it runs on any Android processor.

Since version 1.4.8.4, the APK grew from 6.7 MB to 8.3 MB and the minimum Android version rose from 2.0.1 to 4.4. It asks for 14 permissions, 5 of them sensitive, including read contacts, read phone status and identity and read calendar. Compared with version 1.6.1.5, it drops 2 permissions: “Access adservices attribution” and “Access adservices topics”. The app can read the advertising ID that ad and analytics services use.

What's new in v1.6.1.6

- adaptations for newer Android versions - bug fixes

Description

From the listing uploaded by “appupdater”.

Business Calendar has everything you need in a calendar app: It provides an excellent overview of your appointments, it’s easy to use and it gives you powerful tools to create and manipulate your events. ★ "Our favorite calendar app on Android, due to its flexibility and ease of use." - Lifehacker 01/2014 ★ ★ "One of the best Calendar Apps for 2014" - FastCompany ★ Features ▪ Quick Day View: for a fast overview of all events of the day ▪ Favorite Bar: for direct access to all your calendars ▪ smooth scroll and zoom: for better, intuitive interaction Details ▪ month, week, day, agenda and event view ▪ color-coded year view ▪ scroll- and zoomable multi-day view (1-14 days) ▪ easy switching between timeline bars and event titles in month view ▪ search function ▪ sync your events with Google Calendar, Microsoft Outlook, Exchange etc. using the Android calendar synchronization ▪ professional widgets for month, week, agenda and day view ▪ intuitive handling: just move your finger over some days of interest in month view to open them in multi-day view ▪ many options for recurrent events (e.g. an event that takes place every other week on Tuesday and Thursday) ▪ birthday calendar ▪ context-sensitive help system to optimize your workflow This free version is ad-supported, but still fully functional. If you’re a heavy calendar user, we believe the best solution for you is the pro version: without ads and with more useful features like: ▪ manage contacts: link contacts to your events ▪ customizable templates: create your own templates for new events ▪ multi-selection: delete, move or copy multiple events at once ▪ drag&drop: move and copy events easily in the multi-day view ▪ tasks add-on: use the integrated task-management tool to sync with Google Tasks & Toodledo ▪ notifications: comprehensive reminder functionality ▪ app theming: light and dark theme for the app ▪ advanced widgets: set colors, font sizes and individual calendars ▪ import & export: quickly import or export all your calendars in .ics format

Version history

4 versions are listed, going back to v1.4.8.4. Since v1.6.1.6 it requires Android 4.4+.

v1.6.1.6 LATEST Sep 30, 2026 8.3 MB TRUSTED v1.6.1.5 Sep 2, 2026 8.6 MB TRUSTED v1.6.1.4 Jun 25, 2025 8.7 MB TRUSTED v1.4.8.4 Dec 4, 2015 6.7 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Sep 30, 2026.
Certificate issued to “Netgenius” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature not checked yet Sep 30, 2026
Validated against Google Play Sep 30, 2026
Signed byCN=Michael Kopplin, O=Netgenius, L=Berlin
Signing certificate (SHA-1)FF:05:96:35:E2:CC:42:07:C7:0D:84:0F:A8:5E:4A:61:66:64:A2:CF
File MD583d0653e20c417ca0b16ad9f1848d366
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 (14)

Business Calendar requests 14 permissions, 5 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read calendar Sensitive android.permission.READ_CALENDAR
Read contacts Sensitive android.permission.READ_CONTACTS
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Write calendar Sensitive android.permission.WRITE_CALENDAR
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
Get tasks android.permission.GET_TASKS
Prevent the device from sleeping android.permission.WAKE_LOCK
Read sync stats android.permission.READ_SYNC_STATS
Show notifications android.permission.POST_NOTIFICATIONS
Use exact alarm android.permission.USE_EXACT_ALARM
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
Wi-Fi android.hardware.wifi

Business Calendar APK: questions and answers

Is there a version of Business Calendar for older Android phones?

The current version needs Android 4.4 or later. Version 1.6.1.5 is the newest listed build that installs on Android 4.1 and later. Get version 1.6.1.5 · 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 Business 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 83d0653e20c417ca0b16ad9f1848d366.