Brandwave

Flo vs Spot On:Which is more popular?

In September 2026, Flo had more branded searches than Spot On among period tracking apps worldwide. Flo had about 84,200 branded searches, while Spot On had 1,720. Flo made up 43.9% of all period tracking app searches we track, and Spot On accounted for 0.9%. When we asked ChatGPT and Google AI Overviews about period tracking apps, Flo appeared in four of the five answers and Spot On in two. Flo was mentioned before Spot On in every answer that named either.

Among period tracking apps worldwide in September 2026

Who do people search for more?

Flo, about 49 searches for every 1 for Spot On

Flo 84.2K searchesSpot On 1.7K searches

Who does AI mention more?

Flo, mentioned in 4 of 5 answers, Spot On in 2

Flo in 4 of 5Spot On in 2 of 5

Who does AI recommend more?

Flo, named ahead of Spot On in 4 of 4 answers

Flo first in 4Spot On never first

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Top period tracking apps in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Flo was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Spot On was mentioned in two out of five: not in any of the three ChatGPT answers, but in both Google AI Overviews. Flo was listed before Spot On in every answer that named either.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Clue1st
  2. Flo2nd
  3. Euki3rd
  4. Spot On4th
  5. Stardust5th
  6. Natural Cycles6th
  7. Glow–
  8. Ovia–

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

Not named in any answer:

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

Is Flo or Spot On more popular in search?

This chart shows how often people search Google for Flo and Spot On 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.

Flo and Spot On among period tracking apps worldwide, by month

Share of searches by month for Flo, Spot On. The figures are in the table below the chart.

View monthly share of searches table
MonthFloNatural CyclesClueStardustEukiGlowSpot OnOvia
Oct 202546.1%34.9%10.9%4.6%1.3%0.8%0.47%1%
Nov 202545%37%9.5%4.9%1.3%0.85%0.55%0.88%
Dec 202540.5%41.9%10.4%3.7%1.5%0.78%0.46%0.78%
Jan 202643.5%39.4%10.6%3.5%1.2%0.61%0.4%0.83%
Feb 202650.8%32.2%9.8%3.7%1.4%0.75%0.54%0.76%
Mar 202645.5%35.2%11.8%4.1%1.3%0.78%0.62%0.72%
Apr 202643.4%33.3%15%4.4%1.5%0.89%0.76%0.79%
May 202650.1%28.9%13.7%3.7%1.3%0.9%0.66%0.68%
Jun 202652.1%27.6%12.5%4.2%1.2%1.1%0.68%0.67%
Jul 202652%26.5%12.8%4.9%1.2%1.3%0.64%0.62%
Aug 202640.9%36.8%13%4.8%1.7%1.5%0.67%0.67%
Sep 202643.9%33.4%12.3%5.2%1.9%1.5%0.9%0.81%

How has the Flo and Spot On comparison changed over the last 12 months?

3 findings
  • Flo was ahead of Spot On in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Flo’s share of searches among period tracking apps worldwide moved from 46.1% to 43.9%, and its estimated monthly branded searches moved from 84.7K to 84.2K.
  • Across the 12 months ending September 2026, Spot On’s share of searches among period tracking apps worldwide moved from 0.47% to 0.9%, and its estimated monthly branded searches moved from 870 to 1.7K.

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

2 changes
  1. In September 2026, Flo gained share of searches among period tracking apps worldwide, from 40.9% to 43.9%.

  2. In September 2026, Spot On rose from 8th to 7th among period tracking apps worldwide.

How are branded searches counted?

6 search terms

Brandwave collects information about searches that people make online using Flo’s and Spot On’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.

Flo

4 branded search terms

  • flo app
  • flo health
  • flo ovulation
  • flo period tracker

Spot On

2 branded search terms

  • spot on app
  • spot on period tracker

How the Brand Demand Index is measured

Other head-to-heads among period tracking apps

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