The most valuable lesson came directly from the constraint. Being unable to use the apps pushed me toward a more disciplined process — because I couldn't rely on my own first impression, I had to triangulate every claim, which made the findings more defensible than a single-perspective review. Constraints are a design brief, not a dead end. Re-architecting the research around reachable evidence was a more interesting problem than the original task. Transparency is a credibility multiplier. Stating plainly that this is secondary research — and naming its limits — makes the work more trustworthy, not less. AI is a synthesis tool, not a source of truth. It accelerated structuring a messy evidence base, but its value depended entirely on my validating its output. The judgement stayed human. The natural next step would be to pair these findings with moderated usability testing involving real users in each market, using this analysis to focus the test plan on the highest-stakes flows.