To hold members accountable for completing tasks on time, I'd implement clear expectations, deadline agreements, regular check-ins, task management tools, and positive reinforcement. Transparent communication and addressing delays are essential, while celebrating success fosters a culture of accountability.

To launch a new app on a college campus, I'd use influencers, campus ambassadors, social media, a launch event, and partnerships with student organizations to create excitement and engagement. Freebies and a user referral program would further incentivize student adoption. Feedback would be welcomed for continuous improvement.

The "Poparazzi Photo Challenge" encourages students to capture creative photos using the app, with weekly themes, prizes, and student engagement. It taps into their creativity, fosters a sense of community, and generates excitement on campus.