Euki vs Natural Cycles:Which is more popular?
In September 2026, Natural Cycles had more branded searches than Euki among period tracking apps in New Zealand. Natural Cycles had about 140 branded searches, while Euki had 30. Natural Cycles made up 19.4% of all period tracking app searches we track, and Euki accounted for 4.2%. When we asked ChatGPT and Google AI Overviews about period tracking apps, Euki appeared in all five answers and Natural Cycles in one. Euki was mentioned before Natural Cycles in every answer.
Who do people search for more?
Natural Cycles, about 5 searches for every 1 for Euki
Who does AI mention more?
Euki, mentioned in every answer we collected
Who does AI recommend more?
Euki, named ahead of Natural Cycles in every answer
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Top period tracking apps in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Euki appeared in all five answers. Natural Cycles was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. Euki was listed before Natural Cycles in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Clue1st
Euki2nd
Flo3rd- Apple Health Cycle Tracking4th
Natural Cycles5th
Stardust–
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
Euki5 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- Apple Health Cycle Tracking3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Natural Cycles1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Stardust0 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 in New Zealand?”
Asked ChatGPT
“What are the best period tracking apps in New Zealand?”
Asked ChatGPT
“What's the best period tracking app in New Zealand for cycle tracking?”
Searched Google, AI Overview
“period tracking apps”
Searched Google, AI Overview
“fertility tracking app”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand 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 six period tracking apps we track, month by month, from searches in New Zealand.
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 | Clue | Flo | Natural Cycles | Stardust | Euki | Apple Health Cycle Tracking |
|---|---|---|---|---|---|---|
| Oct 2025 | 15.3% | 40.7% | 18.6% | 23.7% | 1.7% | 0% |
| Nov 2025 | 17% | 37.7% | 20.8% | 20.8% | 1.9% | 1.9% |
| Dec 2025 | 18.5% | 38.9% | 25.9% | 13% | 1.9% | 1.9% |
| Jan 2026 | 17.3% | 41.3% | 22.7% | 17.3% | 1.3% | 0% |
| Feb 2026 | 18.5% | 40% | 23.1% | 16.9% | 1.5% | 0% |
| Mar 2026 | 20.3% | 40.5% | 23% | 13.5% | 1.4% | 1.4% |
| Apr 2026 | 22.1% | 36.8% | 22.1% | 16.2% | 1.5% | 1.5% |
| May 2026 | 19.8% | 51% | 14.6% | 12.5% | 1% | 1% |
| Jun 2026 | 19.7% | 58.2% | 9.8% | 10.7% | 0.82% | 0.82% |
| Jul 2026 | 30.3% | 45.4% | 11.8% | 10.1% | 1.7% | 0.84% |
| Aug 2026 | 34.1% | 34.1% | 12.1% | 16.5% | 2.2% | 1.1% |
| Sep 2026 | 31.9% | 31.9% | 19.4% | 11.1% | 4.2% | 1.4% |
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 in New Zealand moved from 1.7% to 4.2%, and its estimated monthly branded searches moved from 10 to 30.
- Across the 12 months ending September 2026, Natural Cycles’ share of searches among period tracking apps in New Zealand moved from 18.6% to 19.4%, and its estimated monthly branded searches moved from 110 to 140.
How did search popularity change for New Zealand period tracking apps in September 2026?
2 changes

In September 2026, Natural Cycles overtook Stardust to rank 3rd among period tracking apps in New Zealand, with 19.4% of the searches.

In September 2026, Euki gained share of searches among period tracking apps in New Zealand, from 2.2% to 4.2%.
How are branded searches counted?
4 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
1 branded search term
- euki
Natural Cycles
3 branded search terms
- natural cycles
- natural cycles ovulation
- naturalcycles
Other head-to-heads among period tracking apps

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