Euki vs Natural Cycles:Which is more popular?
In September 2026, Natural Cycles had more branded searches than Euki among period tracking apps worldwide. Natural Cycles had about 64,100 branded searches, while Euki had 3,620. Natural Cycles made up 33.4% 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, Euki appeared in four of the five answers and Natural Cycles in one. Euki was mentioned before Natural Cycles in every answer that named either.
Who do people search for more?
Natural Cycles, about 18 searches for every 1 for Euki
Who does AI mention more?
Euki, mentioned in 4 of 5 answers, Natural Cycles in 1
Who does AI recommend more?
Euki, named ahead of Natural Cycles in 4 of 4 answers
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Top period tracking apps in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Euki was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Natural Cycles was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Euki was listed before Natural Cycles in every answer that named either.
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 Euki or Natural Cycles more popular in search?
This chart shows how often people search Google for Euki and Natural Cycles 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 Natural Cycles, 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 Euki and Natural Cycles comparison changed over the last 12 months?
3 findings
- Natural Cycles was ahead of Euki in every measured month of the 12 months ending September 2026.
- 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.
- Across the 12 months ending September 2026, Natural Cycles’ share of searches among period tracking apps worldwide moved from 34.9% to 33.4%, and its estimated monthly branded searches held steady at 64.1K.
How did search popularity change for period tracking apps worldwide in September 2026?
2 changes
In September 2026, Natural Cycles lost share of searches among period tracking apps worldwide, from 36.8% to 33.4%.
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?
5 search terms
Brandwave collects information about searches that people make online using Euki’s and Natural Cycles’ 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.
Euki
2 branded search terms
- euki
- euki app
Natural Cycles
3 branded search terms
- natural cycles
- natural cycles app
- naturalcycles
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