Yes, you can reset your ApprovalMax password using the mobile app - provided that you have enabled 2FA for your account.
To reset your password, click on the "Forgot password?" link:
Type in your email address and click on "PROCEED":
Enter the 4-digit code that ApprovalMax sent to your email address and click on "CONFIRM":
If you have enabled 2FA, enter code provided by the Authenticator:
Set a new password: