Euki vs Stardust:Which is more popular?
In September 2026, Stardust had more branded searches than Euki among period tracking apps worldwide. Stardust had about 10,000 branded searches, while Euki had 3,620. Stardust made up 5.2% 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 Stardust in one. Euki was mentioned before Stardust in every answer that named either.
Who do people search for more?
Stardust, about 3 searches for every 1 for Euki
Who does AI mention more?
Euki, mentioned in 4 of 5 answers, Stardust in 1
Who does AI recommend more?
Euki, named ahead of Stardust in 4 of 4 answers
Follow Euki vs Stardust and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
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. Stardust 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 Stardust 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 Stardust more popular in search?
This chart shows how often people search Google for Euki and Stardust 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 Stardust, 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 Stardust comparison changed over the last 12 months?
3 findings
- Stardust 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, Stardust’s share of searches among period tracking apps worldwide moved from 4.6% to 5.2%, and its estimated monthly branded searches moved from 8.5K to 10K.
How did search popularity change for period tracking apps worldwide in September 2026?
2 changes
How are branded searches counted?
4 search terms
Brandwave collects information about searches that people make online using Euki’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
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.