Clue vs Stardust:Which is more popular?
In September 2026, Clue had more branded searches than Stardust among period tracking apps in New Zealand. Clue had about 230 branded searches, while Stardust had 80. Clue made up 31.9% of all period tracking app searches we track, and Stardust accounted for 11.1%. When we asked ChatGPT and Google AI Overviews about period tracking apps, Clue appeared in all five answers and Stardust in none.
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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. Stardust did not appear in any of the five answers.
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 Clue or Stardust more popular in search?
This chart shows how often people search Google for Clue and Stardust 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 Clue, Stardust. 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 Clue and Stardust comparison changed over the last 12 months?
3 findings
- The lead changed hands once in the 12 months ending September 2026: Clue took it in December 2025.
- Across the 12 months ending September 2026, Clue’s share of searches among period tracking apps in New Zealand moved from 15.3% to 31.9%, and its estimated monthly branded searches moved from 90 to 230.
- Across the 12 months ending September 2026, Stardust’s share of searches among period tracking apps in New Zealand moved from 23.7% to 11.1%, and its estimated monthly branded searches moved from 140 to 80.
How did search popularity change for New Zealand period tracking apps in September 2026?
3 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, Stardust lost share of searches among period tracking apps in New Zealand, from 16.5% to 11.1%.
In September 2026, Clue lost share of searches among period tracking apps in New Zealand, from 34.1% to 31.9%.
How are branded searches counted?
8 search terms
Brandwave collects information about searches that people make online using Clue’s and Stardust’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.
Other head-to-heads among period tracking apps
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