Reasoning
We treat each domain as a single perspective. PCMag reports 1 app (avg confidence 0.675). WebsitePlanet presents a mixed view but shows nearly 40 with the highest confidence (avg confidence 0.725). Duda's own site reports 1 app (confidence 0.90). Weighted average: (1*0.675 + 40*0.725 + 1*0.90) / (0.675 + 0.725 + 0.90) ≈ 13.3, rounded to 13.