Do you want to unlock advanced features in aCalendar, or did you already buy an upgrade and want to know how it works? Here is a simple guide about our premium options, how to buy them, and how your licenses are managed.

1

Ways to Upgrade & Family Sharing

We offer premium features (Ad-free, Tasks, Business Features, Colors, Holidays) through different mobile app stores. All purchases are one-time payments (no subscriptions) and valid on all your devices with no time-restriction. Please note that your premium license is strictly tied to your store account, not your device. If you switch phones, you can easily restore it as long as you use the same login (see our guide on what to do if aCalendar+ is not recognized on a new phone). Choose the option that fits you best:

Option A: The Standalone App (aCalendar+)

This is a separate, paid app in the store. The Plus version automatically includes all available in-app extra purchases. Once you buy and install aCalendar+, it works as a complete pro version. You can uninstall the free aCalendar version afterward.
Family Sharing: Google allows you to share this paid app with your Google Family Library group for free, granting access to the Google Play Family Library (applicable for purchases made after July 2, 2016).
Huawei App Gallery: aCalendar and aCalendar+ are also available at the Huawei App Gallery — please note that you cannot transfer licenses between Huawei and Google.

Option B: In-App Purchases (IAP)

If you prefer to keep using the free aCalendar app, you can buy upgrades directly inside the app menu. This will unlock the premium features instantly inside the free version. There is no need to download a second app.
Family Sharing: Please note that Google does not support family sharing for In-App Purchases. If you want to share your premium version with family members, you must purchase the standalone aCalendar+ app instead.
Huawei App Gallery: Upgrades purchased inside the Huawei app ecosystem are bound to your Huawei ID. You cannot transfer these IAP licenses between Google and Huawei accounts.

Important Notice: Amazon Appstore Discontinuation

The Amazon Appstore for Android devices has been discontinued on August 20, 2025. Fire TV and Fire tablet devices are not affected.

Unfortunately, you cannot transfer licenses between the Amazon Appstore and the Google Play Store. Because the Amazon Appstore uses different app signatures, it cannot be integrated into the Google Play Store, and we cannot manually transfer Amazon licenses to Google Play. For more details on this change, please see our Amazon Appstore guide.

2

How to Check Your Upgrade Status

Your licenses are managed securely by your app store provider, not by us. If you want to see if your app is successfully upgraded, follow these steps:

1

Look at the About Screen

Open the app and navigate to Menu ☰ → Help → About. If your version is premium, it will explicitly list your active upgrades or show the name aCalendar+ at the top.

2

Check Your Account & Order History

Always make sure your phone is logged into the exact same store account (Google Account or Huawei ID) that you used to buy the app. If you change your account, the app store will hide your license and premium features will disappear. You can check all your purchases from a Google account in Google Pay or in your Google Play Order History.

3

Sync Delay & App Store Reset

Sometimes a new purchase takes some time before it is available on other devices. Resetting the storage of your app store application (Google Play Store or Huawei App Gallery) on the other device may speed this up.

4

Contact Support

If you cannot solve the issue, please contact our support with details and the store account used (or your Google Play order number).