In short, the answer is no.
You only need one or the other as they do the same thing.
It is completely up to you which system you use.
There is the added bonus that you will automatically receive a commission for any of your leads and members who sign up for Builderall or Aweber This is due to RPM being integrated fully with RPM and adding your Builderall ID and Aweber ID in steps 4 and 5.
As an RPM member, you are the only Builderall free plan members that gets immediately accepted as an affiliate. All other free Builderall members have to either upgrade to be instantly made an affiliate or they have to wait up to a month for their approval to be done.
The screenshot is below for where the training is:
The link is >> https://www.rapidprofitmachine.com/trainings/1
Please note you only need to have a paid plan for either Builderall or Aweber so that you can build your email lists and have the follow up emails sent to them as well as additional emails should you wish to.