aCalendar vs CalenGoo

aCalendar

• Android users who want a full calendar without a subscription
• People who want Google Tasks or Microsoft To Do lists inside their calendar
• Anyone who prefers to buy only the upgrades they need

CalenGoo

• Google Calendar users who want more views and settings than Google's own apps
• People who want to pay once per platform and avoid a subscription
• Anyone who wants calendar, tasks, contacts and email in one desktop window

aCalendar

• Android only. The vendor states there is no iOS, web or PC version and that none is planned.
• The free version shows ads, and tasks, attendees, profiles, public holidays and the wider color choices all need a paid upgrade.
• In-app upgrades cannot be shared through Google Play Family Library; only the separate aCalendar+ app can.
• Licenses are tied to the store account and cannot be moved between Google Play and Huawei AppGallery.

CalenGoo

• The iOS, Android and desktop versions are different apps and each is bought separately.
• There is no free version. Android has a 72-hour trial and the desktop download can be tried first, but no iOS trial is listed.
• The desktop app costs $49.99 on the Microsoft Store; the site gives no price for the in-app purchase in its own downloads, and says Linux support depends on the distribution.
• Online booking is a separate product: the Booking System is free up to 20 booking hours a month and about $10 a month after that.

aCalendar

Day, week, month, agenda and year views

Swipe vertically to move through time and horizontally to switch views. Day and week views can show a mini month or a graphical week overview alongside.

Eight home screen widgets

Widgets include agenda, date, day and week layouts and a birthday widget added in version 2.9. Accent colors can be set per widget with the Colors upgrade.

Tasks next to events

The Tasks upgrade shows to-dos on their due dates in day, week and month views, with subtasks and a tasks widget. It works with Google Tasks, Microsoft To Do, CalDAV through Tasks.org, and local lists.

Business features

An upgrade adds attendee management, linking contacts to events, free or busy status, private events, and profiles that separate work and personal calendars.

Print and export

Calendar views can be printed or exported as PDF or PNG, and events exported as ICS or CSV files. Multi-select applies an action to several events at once.

Uses Android's calendar sync

The app runs no servers of its own. It reads and writes the calendars Android syncs, including Google Calendar, Microsoft Exchange accounts and CalDAV servers, plus local calendars.

CalenGoo

Direct sync with Google and others

Syncs with Google Calendar, including all past and future events, and with iCloud, CalDAV servers such as Nextcloud, Exchange and the device's own calendars, depending on the platform.

Configurable views

Day, week, month, agenda and year views plus a landscape day view and a search view. The month view zooms and scrolls, and nearly every part of the display can be adjusted.

Tasks in the calendar

Google Tasks lists sync and appear on their due dates, with sub-tasks and recurring tasks. Small task lists can also be saved inside an event, such as a shopping list.

Templates and floating events

Events can be created from one template or several combined. Floating events move to the current day until they are completed, and drag and drop moves, copies or deletes entries.

Reminders, contacts and attachments

Up to five reminders per event by SMS, email or pop-up. Contacts can be linked to events, and files and Evernote notes attached.

Desktop app with movable panes

The desktop version arranges calendar, tasks, contacts, templates and email in panes you can drag around. It includes an email client for Gmail, IMAP and Exchange and a free-text quick add.

aCalendar

• aCalendar$0

  All calendar views, 8 widgets, flexible recurrences, birthdays, moon phases, printing and export. Shows ads, at most one a day according to the vendor.

• In-app upgrades$2.49 - $11.99

  one-time payment per item on Google Play

  Ad-free, Tasks, Business Features, Colors and Holidays bought individually inside the free app. Not shareable through Family Library.

• aCalendar+$11.99

  one-time purchase on Google Play

  A separate paid app with every upgrade included and no ads. It can be shared through Google Play Family Library.

CalenGoo

• CalenGoo for Android$5.99

  one-time purchase on Google Play

  Installs on every Android phone and tablet linked to the same Google account, with free updates. Also free with a Play Pass subscription.

• CalenGoo for iOS$6.99

  one-time purchase on the App Store

  One purchase covers iPhone, iPad and Apple Watch on the same Apple account. No in-app purchases are listed.

• CalenGoo for Desktop$49.99

  one-time purchase on the Microsoft Store

  The Windows app with calendar, tasks, contacts and email. macOS and Linux builds are downloaded from the site and bought inside the app.

aCalendar

• Other savings

  Family Library sharing for aCalendar+

  Bought as a paid app after July 2, 2016, aCalendar+ can be shared with up to 5 family members through Google Play Family Library. In-app upgrades are not eligible.

CalenGoo

• Other savings

  Android app included with Google Play Pass

  The Google Play listing for CalenGoo says the app is free with a Play Pass subscription.