---
title: "Period tracking apps: Which are searched most?"
description: "Compare the period and fertility tracking apps people use. Share of Search among Flo, Natural Cycles, Clue and Stardust, the period tracking apps Brandwave compares worldwide, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/global-en/categories/period-tracking-apps"
publisher: "Brandwave"
---

# Period tracking apps: Which are searched most?

Compare the period and fertility tracking apps people use. Share of Search among Flo, Natural Cycles, Clue and Stardust, the period tracking apps Brandwave compares worldwide, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Competitive set**: Period tracking apps
- **Market**: Global
- **Brands compared**: 4
- **Month measured**: Sep 2026
- **Highest Share of Search**: Flo, 46.3%

## Which brand is most popular in search among period tracking apps worldwide?

- In September 2026, Flo was the most searched among period tracking apps worldwide, with an estimated 84.2K branded searches and 46.3% estimated Share of Search within this set.
- Natural Cycles is in 2nd place, 11 percentage points behind at 35.2% Share of Search.
- Across the 12 months ending September 2026, Flo’s estimated Share of Search among period tracking apps worldwide decreased from 47.8% to 46.3%.
- Across the 12 months ending September 2026, Natural Cycles’ estimated Share of Search among period tracking apps worldwide decreased from 36.2% to 35.2%.
- Across the 12 months ending September 2026, Clue’s estimated Share of Search among period tracking apps worldwide increased from 11.3% to 13%.
- Across the 12 months ending September 2026, Stardust’s estimated Share of Search among period tracking apps worldwide increased from 4.8% to 5.5%.
- Across the 12 months ending September 2026, Flo’s estimated Share of Search among period tracking apps worldwide peaked at 54% in July 2026 and was lowest at 41.9% in December 2025.
- Across the 12 months ending September 2026, Natural Cycles’ estimated Share of Search among period tracking apps worldwide peaked at 43.4% in December 2025 and was lowest at 27.5% in July 2026.
- Across the 12 months ending September 2026, Clue’s estimated Share of Search among period tracking apps worldwide peaked at 15.6% in April 2026 and was lowest at 9.9% in November 2025.
- Across the 12 months ending September 2026, Stardust’s estimated Share of Search among period tracking apps worldwide peaked at 5.5% in September 2026 and was lowest at 3.6% in January 2026.

## Compare search popularity between leading brands

- [Flo vs Natural Cycles: compare search popularity](/demand/global-en/compare/flo-vs-natural-cycles): 46.3% against 35.2% Share of Search.
- [Flo vs Clue: compare search popularity](/demand/global-en/compare/clue-vs-flo): 46.3% against 13% Share of Search.
- [Flo vs Stardust: compare search popularity](/demand/global-en/compare/flo-vs-stardust): 46.3% against 5.5% Share of Search.
- [Natural Cycles vs Clue: compare search popularity](/demand/global-en/compare/clue-vs-natural-cycles): 35.2% against 13% Share of Search.
- [Natural Cycles vs Stardust: compare search popularity](/demand/global-en/compare/natural-cycles-vs-stardust): 35.2% against 5.5% Share of Search.
- [Clue vs Stardust: compare search popularity](/demand/global-en/compare/clue-vs-stardust): 13% against 5.5% Share of Search.

## How did search popularity change for period tracking apps worldwide in September 2026?

- In September 2026, Flo gained estimated Share of Search among period tracking apps worldwide, from 42.8% to 46.3%.
- In September 2026, Natural Cycles lost estimated Share of Search among period tracking apps worldwide, from 38.5% to 35.2%.
- In September 2026, Clue lost estimated Share of Search among period tracking apps worldwide, from 13.6% to 13%.
- Estimated monthly branded searches for Stardust worldwide rose 17.6% over 12 measured months, from 8.5K to 10K in September 2026.

## Share of Search ranking

| Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by |
| --- | --- | --- | --- | --- | --- |
| 1 | Flo | 46.3% | 84.2K | -6.1% | Flo Health |
| 2 | Natural Cycles | 35.2% | 64.1K | -20.5% | Natural Cycles |
| 3 | Clue | 13% | 23.7K | -17.2% | BioWink |
| 4 | Stardust | 5.5% | 10K | -4.8% | Stardust |

## Historical estimated branded-search demand

| Month | Brand | Estimated monthly branded searches | Share of Search | Rank |
| --- | --- | --- | --- | --- |
| Oct 2025 | Flo | 84.7K | 47.8% | 1 |
| Oct 2025 | Natural Cycles | 64.1K | 36.2% | 2 |
| Oct 2025 | Clue | 19.9K | 11.3% | 3 |
| Oct 2025 | Stardust | 8.5K | 4.8% | 4 |
| Nov 2025 | Flo | 78.1K | 46.7% | 1 |
| Nov 2025 | Natural Cycles | 64.1K | 38.3% | 2 |
| Nov 2025 | Clue | 16.5K | 9.9% | 3 |
| Nov 2025 | Stardust | 8.5K | 5.1% | 4 |
| Dec 2025 | Natural Cycles | 78.4K | 43.4% | 1 |
| Dec 2025 | Flo | 75.8K | 41.9% | 2 |
| Dec 2025 | Clue | 19.6K | 10.8% | 3 |
| Dec 2025 | Stardust | 7K | 3.9% | 4 |
| Jan 2026 | Flo | 105K | 44.9% | 1 |
| Jan 2026 | Natural Cycles | 94.9K | 40.6% | 2 |
| Jan 2026 | Clue | 25.5K | 10.9% | 3 |
| Jan 2026 | Stardust | 8.5K | 3.6% | 4 |
| Feb 2026 | Flo | 100K | 52.7% | 1 |
| Feb 2026 | Natural Cycles | 63.4K | 33.4% | 2 |
| Feb 2026 | Clue | 19.3K | 10.1% | 3 |
| Feb 2026 | Stardust | 7.3K | 3.8% | 4 |
| Mar 2026 | Flo | 100K | 47.1% | 1 |
| Mar 2026 | Natural Cycles | 77.6K | 36.4% | 2 |
| Mar 2026 | Clue | 26K | 12.2% | 3 |
| Mar 2026 | Stardust | 9K | 4.2% | 4 |
| Apr 2026 | Flo | 83.7K | 45.2% | 1 |
| Apr 2026 | Natural Cycles | 64.1K | 34.6% | 2 |
| Apr 2026 | Clue | 28.9K | 15.6% | 3 |
| Apr 2026 | Stardust | 8.5K | 4.6% | 4 |
| May 2026 | Flo | 111K | 52% | 1 |
| May 2026 | Natural Cycles | 64.1K | 30% | 2 |
| May 2026 | Clue | 30.4K | 14.2% | 3 |
| May 2026 | Stardust | 8.2K | 3.8% | 4 |
| Jun 2026 | Flo | 123K | 54% | 1 |
| Jun 2026 | Natural Cycles | 64.9K | 28.6% | 2 |
| Jun 2026 | Clue | 29.4K | 12.9% | 3 |
| Jun 2026 | Stardust | 10K | 4.4% | 4 |
| Jul 2026 | Flo | 129K | 54% | 1 |
| Jul 2026 | Natural Cycles | 65.9K | 27.5% | 2 |
| Jul 2026 | Clue | 31.9K | 13.3% | 3 |
| Jul 2026 | Stardust | 12.3K | 5.1% | 4 |
| Aug 2026 | Flo | 89.7K | 42.8% | 1 |
| Aug 2026 | Natural Cycles | 80.6K | 38.5% | 2 |
| Aug 2026 | Clue | 28.6K | 13.6% | 3 |
| Aug 2026 | Stardust | 10.5K | 5% | 4 |
| Sep 2026 | Flo | 84.2K | 46.3% | 1 |
| Sep 2026 | Natural Cycles | 64.1K | 35.2% | 2 |
| Sep 2026 | Clue | 23.7K | 13% | 3 |
| Sep 2026 | Stardust | 10K | 5.5% | 4 |

## What is being compared

- **Clue**: Measured on the search terms “clue app”, “clue menstrual tracker”, “clue period tracker”, “clue period tracking”, “clue plus” and “helloclue”, summed into one figure.
- **Flo**: Measured on the search terms “flo app”, “flo health”, “flo ovulation” and “flo period tracker”, summed into one figure.
- **Natural Cycles**: Measured on the search terms “natural cycles”, “natural cycles app” and “naturalcycles”, summed into one figure.
- **Stardust**: Measured on the search terms “stardust app” and “stardust period tracker”, summed into one figure.

- [Clue](/demand/global-en/brands/clue)
- [Flo](/demand/global-en/brands/flo)
- [Natural Cycles](/demand/global-en/brands/natural-cycles)
- [Stardust](/demand/global-en/brands/stardust)

## Methodology

- [How is branded search demand measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which brand is most popular in search among period tracking apps worldwide?

In September 2026, Flo was the most searched among period tracking apps worldwide, with an estimated 84.2K branded searches and 46.3% estimated Share of Search within this set. These are worldwide searches for English-language branded terms.

## Cite this page

Brandwave. "Period tracking apps: Which are searched most?". https://gobrandwave.com/demand/global-en/categories/period-tracking-apps

This page is also available as HTML at https://gobrandwave.com/demand/global-en/categories/period-tracking-apps. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.