Mobile App Design Case Studies & Practical Application 4

Question 1

A fintech startup wants to launch an MVP mobile app for expense tracking. Which feature set best defines a true MVP?

Accepted Answer

Manual expense entry, categorization, and a simple monthly summary

Answer

A true MVP delivers the core value proposition (track expenses) with minimal features to validate demand before investing in advanced capabilities.

Question 2

Instagram's Stories feature places user-generated content in a horizontal scroll at the top of the feed. Which design goal does this layout primarily serve?

Accepted Answer

Surfacing ephemeral, time-sensitive content without disrupting the main feed

Answer

The horizontal Stories rail creates a dedicated, scannable zone for ephemeral content that coexists with the persistent main feed without competing for the same space.

Question 3

A team is designing an app for elderly users (65+) in the US. Which design decision is most critical for this audience?

Accepted Answer

Larger touch targets (minimum 48x48dp) and high-contrast text (WCAG AA or higher)

Answer

Larger touch targets and high contrast directly address the motor and vision challenges common among elderly users.

Question 4

A shopping app shows users a product is 'Only 3 left in stock!' even when inventory is actually plentiful. From a UX ethics perspective, this is:

Accepted Answer

A dark pattern — it manufactures urgency through deception to manipulate users

Answer

False scarcity is a manipulative dark pattern that exploits loss aversion through deliberate deception, violating user trust and ethical design principles.

Question 5

A team conducts tree testing on their app's navigation and finds users can only locate the 'Help' section 40% of the time. The correct next step is:

Accepted Answer

Redesign the information architecture and label for the Help section, then retest

Answer

Tree testing identifies navigation failures; the fix is to address the IA structure and labeling problem at its root, then validate the solution with another test.

Mobile App Design Practice Test

Mobile App Design Practice Test

Mobile App Design Case Studies & Practical Application 4