Use App Lab or Unit 8 Lesson 4 Bubble 2 to create an app

Good afternoon. I have a CSP class that is not an AP class. The class has covered Unit 1 - 5 throughout the academic year. As part of the final exam, I would like to have students create, design, and code their own app to showcase the skills and concepts they have learned throughout the year. I am thinking of either using the App Lab for this or using Unit 8 Lesson 4 Bubble 2 (create PT). Any suggestions/comments/insights regarding whether one of the above would be a better place for student work would be appreciated.

From a grading perspective, assigning a project within code studio would be easier. That way you can see your whole class submissions and their submission dates and times. Students also do not need to do anything special to submit their project besides hitting the Submit button.