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Add Apple authentication to your app

about 15 minBuildingchecked 4d agoOfficial page

The short version

You can let people sign into your app using their Apple account, making it easier for them to join without creating a new password. This can be set up quickly by Lovable, or you can use your own Apple Developer account for more control.

Anyone building an app who wants to offer an easy sign-in option for users, especially those with Apple devices.

Do this, in order

1
Decide if you want Lovable to manage the Apple sign-in setup for you, or if you want to use your own Apple Developer account.
Lovable's managed option is faster and requires no Apple Developer account, while your own credentials give you more control over the setup and user email options.
2
If you chose 'Managed by Lovable', ask Lovable to add an Apple sign-in button to your app.
This automatically enables Apple sign-in and adds the button to your app's login page.
3
If you chose 'Your own credentials', go to your Apple Developer account and set up an App ID, a Services ID, and a key, then download the .p8 file.
These are the necessary credentials Apple requires for your app to use 'Sign in with Apple' under your own account.
4
If you chose 'Your own credentials', enter your Services ID (Client ID) and generate a Client secret (JWT) using your .p8 file, Key ID, Services ID, and Team ID in Lovable's Apple auth settings.
This connects your Apple Developer account to Lovable, allowing your app to use your specific Apple sign-in configuration.
5
If you chose 'Your own credentials', copy the Redirect URL(s) from Lovable's Apple auth settings and paste them into your Services ID configuration in the Apple Developer portal.
This tells Apple where to send users back after they've signed in, preventing errors.
6
Test the Apple sign-in flow on your app.
This confirms that the button appears, users are redirected to Apple, they can sign in, and they return to your app successfully.

Paste this into your project

Add an Apple sign-in button to my app.

Words decoded

OAuth: A secure way for apps to get permission to access information from another service (like Apple) without needing your password.
Client ID: A unique identifier for your app when it talks to Apple's services.
Client secret (JWT): A special, encrypted code that proves your app is legitimate when it communicates with Apple. It's like a temporary password for your app.
Redirect URL: The specific web address where Apple sends users back to your app after they've successfully signed in.
App ID: A unique identifier for your app within the Apple ecosystem.
Services ID: A specific identifier used for web-based 'Sign in with Apple' features.
.p8 file: A special key file downloaded from your Apple Developer account that is used to create secure tokens for your app.
Key ID: An identifier for the specific key (.p8 file) you're using.
Team ID: An identifier for your developer team in Apple's system.

Where people get stuck

If you use your own credentials, your client secret will expire every 6 months, causing sign-in to stop working. You must generate a new one.
Incorrect or mismatched Redirect URLs (Return URLs) between Lovable and your Apple Developer configuration will cause sign-in errors.
Switching between 'Managed by Lovable' and 'Your own credentials' after users have signed up with Apple may cause existing users to not be recognized when they try to sign in again.

The short version, steps, decoder and prompt on this page are written automatically from Lovable's own documentation and can lag or misread it. The official page is always the authority.