This article explains how to log into Pinterest on an Android device using a Facebook, Google, or Pinterest account.
Steps
Method 1 of 3: Using a Pinterest Account

Step 1. Open Pinterest
The application icon has a white "P" on a red background. If you have installed the app, you should find it on the Home screen or in the app menu.
If you don't have the Pinterest app, download it for free from the Play Store

Step 2. Type your e-mail address in the box indicated

Step 3. Click on Continue

Step 4. Enter your password

Step 5. Click on Login
This way you will be logged in with your Pinterest account.
Method 2 of 3: Using Facebook

Step 1. Open Pinterest
The icon looks like a white "P" on a red background. If you have installed the app, you should find it on the Home screen or in the app menu.
If you don't have the Pinterest app, download it for free from the Play Store

Step 2. Click on Continue with Facebook

Step 3. Log into your Facebook account
You will only be prompted to do so if you are not already logged into Facebook on the device. At this point, a message should appear warning you that Pinterest will be able to access your Facebook data.
You can change the information that Pinterest can access by pressing the button Edit.

Step 4. Click Continue
This will log you into Pinterest with your Facebook account.
Method 3 of 3: Using a Google Account

Step 1. Open Pinterest
The icon looks like a white "P" on a red background. If you have installed the app, you should find it on the Home screen or in the app menu.
If you don't have the app, download it for free from the Play Store

Step 2. Click on Continue with Google

Step 3. Select a Google account
Press on your account or on Add another account to use a Google profile that you have not associated with your Android device. Once you're done, tap on Ok.

Step 4. Click on Allow
This will allow Pinterest to receive information about your age, the language you use and the basic data associated with your Google profile. Once you have given this permission, you will be logged into Pinterest.