Using a registration code

If you have already bought a registration code from us, you don't have to pay again.

Step 1

Get Catholic Calendar. It is free.

In the app stores, “Catholic Calendar from Universalis” is what you are looking for.

Step 2

You need to be connected to the Web for this step to work.

  1. Open Catholic Calendar.
  2. Tap on the Android menu symbol at the top right (usually this is three dots in a vertical row), to open the menu. Some manufacturers have changed the standard Android menu symbol, so press whatever you do see at the top right-hand corner. If you don't see anything at all, you must be using a device with a physical menu button: in which case, press that button.
  3. From the menu, pick "About".
  4. At the bottom of the About Catholic Calendar screen you will see a button marked "Registration Code". Press it.
  5. A web page will open, asking you for your registration code. Follow its instructions.
If you can’t see the menu button: Some manufacturers change the three-dots symbol, or delete the menu button from the top right of their screens. In that case, the device may have a physical menu button outside the screen. Or there may be no physical menu button at all, and you have to open the menu by pressing and holding down the "application switch" button at the bottom right of the screen. This page from WhatsApp has useful explanations and pictures.


Once you have gone through this process, your Catholic Calendar will have morphed itself into Universalis. If you like, you can check this by opening the About screen again. It will now say "About Universalis", and at the top it will mention your registration code. Also, there will no longer be a Registration Code button at the bottom of the About screen, because it isn't needed any more.

Note: The icon you tap to get into Universalis will continue to call itself "Catholic Calendar". Don't worry: this is normal. There is no way for an application to change its own icon in Android.