Hey PH Solo founder here. I built precioproteina because I got tired of paying for marketing instead of paying for protein. The problem: protein powder brands sell at wildly different concentrations (whey concentrate at 70%, isolate at 90%, vegan blends anywhere between 55-88%) and at wildly different formats. Comparing "bottles" is meaningless. The only honest metric is cost per gram of actual protein. So I built two things: 1. A free calculator: enter weight, price, protein %. Get €/g, €/serving and monthly cost. Takes 5 seconds. 2. A live comparator with 25 verified products in the Spanish market, sorted by €/g. The cheapest ends up being soy isolate (0.016 €/g). The most expensive ends up being premium isolate at 0.094 €/g. Same active nutrient, 6x price difference. Currently Spain-only because that's where I live, but the methodology is universal. If this lands, I'm planning Mexico next, then EU. Sustained by amazon affiliate links + direct partnerships. The calculator and the comparison data are free, no signup, no email wall, no ads. Happy to answer anything about the methodology, the data, or the unit economics of the project so far. Cheers, Daniel

precioproteina

Compare protein powders by cost per gram, not by bottle

Compare protein powders by cost per gram, not by bottle