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Insights on product testing, consumer research, and building brands that resonate.

October 4, 2026

How Many Product Testers Do You Need? Sample Size Explained

How to work out how many testers a consumer product test needs, with the sample size formula, a worked example, and when a smaller qualitative test is enough.

Portifer Team

October 4, 2026

How to Run a Product Seeding Campaign: A Step-by-Step Guide

A practical guide to planning, shipping and measuring a product seeding campaign, from choosing recipients to collecting feedback and content, with the decisions to make at each step.

April 1, 2026

5 Product Testing Trends Reshaping Consumer Brands in 2026

From direct-to-consumer seeding to AI-powered feedback analysis, these are the product testing trends we see shaping consumer brands in 2026.

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