Clue vs Euki:Which is more popular?
In September 2026, Clue had more branded searches than Euki among period tracking apps worldwide. Clue had about 23,700 branded searches, while Euki had 3,620. Clue made up 12.3% of all period tracking app searches we track, and Euki accounted for 1.9%. When we asked ChatGPT and Google AI Overviews about period tracking apps, Clue appeared in all five answers and Euki in four. Clue was mentioned before Euki in every answer.
Who do people search for more?
Clue, about 7 searches for every 1 for Euki
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Top period tracking apps in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Clue appeared in all five answers. Euki was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Clue was listed before Euki in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Clue5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Flo4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Euki4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Spot On2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Natural Cycles1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Stardust1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Glow0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Ovia0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about period tracking apps
5 answers
Asked ChatGPT
“Which period tracking app should I use?”
Asked ChatGPT
“What are the best period tracking apps?”
Asked ChatGPT
“What's the best period tracking app for fertility tracking?”
Searched Google, AI Overview
“period tracking apps”
Searched Google, AI Overview
“cycle tracking app”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is Clue or Euki more popular in search?
This chart shows how often people search Google for Clue and Euki by name. Each line represents a brand's share of searches for all eight period tracking apps we track, month by month, from English-language searches worldwide.
Share of searches by month for Clue, Euki. The figures are in the table below the chart.
View monthly share of searches table
| Month | Flo | Natural Cycles | Clue | Stardust | Euki | Glow | Spot On | Ovia |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 46.1% | 34.9% | 10.9% | 4.6% | 1.3% | 0.8% | 0.47% | 1% |
| Nov 2025 | 45% | 37% | 9.5% | 4.9% | 1.3% | 0.85% | 0.55% | 0.88% |
| Dec 2025 | 40.5% | 41.9% | 10.4% | 3.7% | 1.5% | 0.78% | 0.46% | 0.78% |
| Jan 2026 | 43.5% | 39.4% | 10.6% | 3.5% | 1.2% | 0.61% | 0.4% | 0.83% |
| Feb 2026 | 50.8% | 32.2% | 9.8% | 3.7% | 1.4% | 0.75% | 0.54% | 0.76% |
| Mar 2026 | 45.5% | 35.2% | 11.8% | 4.1% | 1.3% | 0.78% | 0.62% | 0.72% |
| Apr 2026 | 43.4% | 33.3% | 15% | 4.4% | 1.5% | 0.89% | 0.76% | 0.79% |
| May 2026 | 50.1% | 28.9% | 13.7% | 3.7% | 1.3% | 0.9% | 0.66% | 0.68% |
| Jun 2026 | 52.1% | 27.6% | 12.5% | 4.2% | 1.2% | 1.1% | 0.68% | 0.67% |
| Jul 2026 | 52% | 26.5% | 12.8% | 4.9% | 1.2% | 1.3% | 0.64% | 0.62% |
| Aug 2026 | 40.9% | 36.8% | 13% | 4.8% | 1.7% | 1.5% | 0.67% | 0.67% |
| Sep 2026 | 43.9% | 33.4% | 12.3% | 5.2% | 1.9% | 1.5% | 0.9% | 0.81% |
How has the Clue and Euki comparison changed over the last 12 months?
3 findings
- Clue was ahead of Euki in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Clue’s share of searches among period tracking apps worldwide moved from 10.9% to 12.3%, and its estimated monthly branded searches moved from 19.9K to 23.7K.
- Across the 12 months ending September 2026, Euki’s share of searches among period tracking apps worldwide moved from 1.3% to 1.9%, and its estimated monthly branded searches moved from 2.4K to 3.6K.
How did search popularity change for period tracking apps worldwide in September 2026?
2 changes
In September 2026, Clue lost share of searches among period tracking apps worldwide, from 13% to 12.3%.
Estimated monthly branded searches for Euki worldwide rose 52.1% over 12 measured months, from 2.4K to 3.6K in September 2026.
How are branded searches counted?
8 search terms
Brandwave collects information about searches that people make online using Clue’s and Euki’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.
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