Pretty sure a Pineapple has completely different usage to a Raspberry Pi:
A pineapple is a:
Quote:WIRELESS AUDITING PLATFORM
Command the WiFi landscape and direct attacks from a live recon dashboard, passively monitoring all devices in the vicinity.
- Target
Limit the audit to specified clients and access points within the scope of engagement and ensure zero collateral damage.
- Intercept
Acquire clients with a comprehensive suite of WiFi man-in-the-middle tools specializing in targeted asset collection.
- Report
Record and analyze logs, generate emailed reports at set intervals, and identify vulnerable devices in your organization.
Whereas a Raspberry Pi is:
Quote:A small and affordable computer that you can use to learn programming
A wireless auditing platform would be used for monitoring networks, could be used for data analysis, interception, optimization etc., a RPi would be used moreso generally than the Pineapple, it could be, with extension, used as a makeshift Pineapple device; however it's more tended towards programming, home automation, commercial products and so forth.