Pinduo According to Pinduoduo official website, as long as it is the Android version of Pinduoduo software, it can have the function of pre-signing. The fastest way to get a signature is as follows:

1, click the search bar first.

2. Secondly, enter the author's signature.

3. Finally, click on Personal Purchase below and log in to Pinduoduo every 4 hours. If the other party doesn't sign, others can grab the pro-sign.