Honestly I think I might also be blind cuz I can't see it either on the main post lmao. You can use this link which is where I personally uploaded all the apks (I bought them) to make my life easier since I tend to delete and re install the game a lot:
Link apks
And to make your life easier I'll also give you the instructions for android (they're on the official dlc pages but just to save you time):
1. Download all the dlc apk files.
2. Locate the file u wanna install in your file manager and install it.
3. When it's done installing tap on "open" instead of "cancel". You should see a message confirming you've successfully installed the DLC.
4. Repeat steps 1-3 with all the other DLCs you're installing.
5. Download and install the base Our Life game (the voice or no voice version). When you open the app, any DLC you installed through steps 1-4 should be available.