Apple Health Cycle Tracking vs Stardust:Which is more popular?

In September 2026, Stardust had more branded searches than Apple Health Cycle Tracking among period tracking apps in New Zealand. Stardust had about 80 branded searches, while Apple Health Cycle Tracking had 10. Stardust made up 11.1% of all period tracking app searches we track, and Apple Health Cycle Tracking accounted for 1.4%. When we asked ChatGPT and Google AI Overviews about period tracking apps, Apple Health Cycle Tracking appeared in three of the five answers and Stardust in none.

Among period tracking apps in New Zealand in September 2026

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Top period tracking apps in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Apple Health Cycle Tracking was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. 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.

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

How many AI answers named each brand
Brand	ChatGPT	Google	Answers that named it
Clue	Named in 3 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	5 of 5
Euki	Named in 3 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	5 of 5
Flo	Named in 2 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	4 of 5
Apple Health Cycle Tracking	Named in 3 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	3 of 5
Natural Cycles	Named in 0 of 3 ChatGPT answers	Named in 1 of 2 Google AI Overviews	1 of 5
Stardust	Named in 0 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	0 of 5

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?”
1. 1Clue
2. 2Euki
3. 3Flo
4. 4Apple Health Cycle Tracking
Asked ChatGPT
“What's the best period tracking app in New Zealand for cycle tracking?”
1. 1Clue
2. 2Euki
3. 3Flo
4. 4Apple Health Cycle Tracking
Searched Google, AI Overview
“period tracking apps”
1. 1Flo
2. 2Clue
3. 3Euki
4. 4Natural Cycles
Searched Google, AI Overview
“fertility tracking app”
1. 1Flo
2. 2Euki
3. 3Clue

Not named in any answer:

Stardust

Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.

Is Apple Health Cycle Tracking or Stardust more popular in search?

This chart shows how often people search Google for Apple Health Cycle Tracking 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.

Apple Health Cycle Tracking and Stardust among period tracking apps in New Zealand, by month

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 Apple Health Cycle Tracking and Stardust comparison changed over the last 12 months?

3 findings

Stardust was ahead of Apple Health Cycle Tracking in every measured month of the 12 months ending September 2026.
Across the 12 months ending September 2026, Apple Health Cycle Tracking’s share of searches among period tracking apps in New Zealand moved from 0% to 1.4%, and its estimated monthly branded searches moved from 0 to 10.
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%.
Apple Health Cycle Tracking’s share of searches among period tracking apps in New Zealand has gained ground for 3 months in a row, from 0.82% to 1.4% in September 2026.

How are branded searches counted?

5 search terms

Brandwave collects information about searches that people make online using Apple Health Cycle Tracking’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.