--- title: "Knix vs Stayfree: Which is searched more?" description: "Is Knix or Stayfree more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Period care brands set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/compare/knix-vs-stayfree" publisher: "Brandwave" --- # Knix vs Stayfree: Which is searched more? Is Knix or Stayfree more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Period care brands set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Knix and Stayfree - **Competitive set**: Period care brands - **Market**: Global - **Month measured**: Sep 2026 - **Knix Share of Search**: 39.1% - **Stayfree Share of Search**: 20.6% ## Is Knix or Stayfree more popular in search? - In September 2026, Knix had more branded searches than Stayfree among period care brands worldwide. Knix had about 172,000 branded searches, while Stayfree had 90,500. Knix made up 39.1% of all period care brand searches we track, and Stayfree accounted for 20.6%. - Knix was ahead of Stayfree in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Knix’s share of searches among period care brands worldwide moved from 33.8% to 39.1%, and its estimated monthly branded searches moved from 135K to 172K. - Across the 12 months ending September 2026, Stayfree’s share of searches among period care brands worldwide moved from 22.6% to 20.6%, and its estimated monthly branded searches held steady at 90.5K. ## Top period care brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Knix was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Stayfree did not appear in any of the five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Rael | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Always | 2nd | 2 of 3 | 1 of 2 | 3 of 5 | | Cora | 3rd | 2 of 3 | 2 of 2 | 4 of 5 | | L. | 4th | 2 of 3 | 1 of 2 | 3 of 5 | | Saalt | 5th | 2 of 3 | 0 of 2 | 2 of 5 | | Knix | 6th | 2 of 3 | 0 of 2 | 2 of 5 | | Stayfree | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Modibodi | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Thinx | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Libra | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about period care brands - Asked ChatGPT "Which period care brand should I buy?": 1. Rael, 2. Always, 3. Cora, 4. Saalt - Asked ChatGPT "What are the best period care brands?": 1. Rael, 2. Cora, 3. Saalt, 4. L., 5. Knix - Asked ChatGPT "What's the best period care brand for monthly protection?": 1. Always, 2. Rael, 3. L., 4. Knix - Searched Google, AI Overview "tampon brands": 1. Cora, 2. Rael - Searched Google, AI Overview "pad brands": 1. Always, 2. Rael, 3. L., 4. Cora Not named in any answer: Stayfree, Modibodi, Thinx and Libra. Brands are listed in the order each answer named them. The answers were collected in the United States on October 21, 2026. ## How did search popularity change for period care brands worldwide in September 2026? - In September 2026, Stayfree gained share of searches among period care brands worldwide, from 17.5% to 20.6%. - In September 2026, Knix lost share of searches among period care brands worldwide, from 41.8% to 39.1%. ## Month by month | Month | Knix estimated searches | Knix Share of Search | Knix rank | Stayfree estimated searches | Stayfree Share of Search | Stayfree rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 135K | 33.8% | 1 | 90.5K | 22.6% | 2 | | Nov 2025 | 229K | 44.3% | 1 | 90.5K | 17.5% | 2 | | Dec 2025 | 166K | 36.9% | 1 | 90.5K | 20.1% | 2 | | Jan 2026 | 203K | 38.9% | 1 | 90.5K | 17.3% | 2 | | Feb 2026 | 168K | 37.9% | 1 | 74K | 16.7% | 3 | | Mar 2026 | 175K | 37.7% | 1 | 90.5K | 19.5% | 2 | | Apr 2026 | 224K | 42.3% | 1 | 90.5K | 17.1% | 2 | | May 2026 | 201K | 36.2% | 1 | 90.5K | 16.3% | 3 | | Jun 2026 | 230K | 38.4% | 1 | 90.5K | 15.1% | 3 | | Jul 2026 | 263K | 41.5% | 1 | 90.5K | 14.3% | 3 | | Aug 2026 | 216K | 41.8% | 1 | 90.5K | 17.5% | 2 | | Sep 2026 | 172K | 39.1% | 1 | 90.5K | 20.6% | 2 | ## How each brand is measured Brandwave collects information about searches that people make online using Knix’s and Stayfree’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **Knix**: Measured on the search terms “knix”, “knix bras”, “knix period underwear”, “knix underwear” and “knixwear”, summed into one figure. - **Stayfree**: Measured on the search term “stayfree”. - [Knix profile](/demand/global-en/brands/knix) - [Stayfree profile](/demand/global-en/brands/stayfree) - [All period care brands worldwide](/demand/global-en/categories/period-care-brands): The set both shares are measured inside, 10 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Knix or Stayfree more popular in search? In September 2026, Knix had more branded searches than Stayfree among period care brands worldwide. Knix had about 172,000 branded searches, while Stayfree had 90,500. Knix made up 39.1% of all period care brand searches we track, and Stayfree accounted for 20.6%. ## Cite this page Brandwave. "Knix vs Stayfree: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/knix-vs-stayfree This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/knix-vs-stayfree. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.