Brandwave

How popular isDaylio?

In September 2026, people searched for Daylio by name about 12,100 times worldwide, an 18.2% decrease from the previous year. These searches made up 3.8% of all global journaling app searches, placing Daylio third out of seven apps. When we asked both ChatGPT and Google AI Overviews about journaling apps, Daylio appeared in three of the five answers and was the fifth most recommended of the seven.

Search and AI answers in September 2026

Daylio is the third most searched of 7 competitors and the fifth most recommended in AI answers.

  1. Day OneShare of searches 79.2%Mentioned in 5 of 5 AI answersPlace in AI recommendations 1st
  2. PenzuShare of searches 10.4%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
  3. DaylioShare of searches 3.8%Mentioned in 3 of 5 AI answersPlace in AI recommendations 5th
  4. DiariumShare of searches 3.1%Mentioned in 3 of 5 AI answersPlace in AI recommendations 4th
  5. ReflectlyShare of searches 2.1%Mentioned in 1 of 5 AI answersPlace in AI recommendations 6th

+2 more

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Top journaling apps in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Daylio was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Daylio is the fifth most recommended of the seven.

Most recommended by AI

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

  1. Day One1st
  2. Apple Journal2nd
  3. Journey3rd
  4. Diarium4th
  5. Daylio5th
  6. Reflectly6th
  7. Penzu–

Mentioned by AI

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

  • Day One5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Apple Journal5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Journey4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Daylio3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Diarium3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Reflectly1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Penzu0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about journaling 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.

Which journaling apps compete with Daylio?

Daylio against journaling apps worldwide, by month

Share of searches by month for Day One, Penzu, Daylio, Diarium, Reflectly. The figures are in the table below the chart.

View monthly share of searches table
MonthDay OnePenzuDaylioDiariumReflectlyApple JournalJourney
Oct 202562.5%17.7%7.9%5.3%2.9%3.5%0.06%
Nov 202570.6%16.7%5%3.3%2.2%2.2%0.04%
Dec 202567%15.5%6.9%4.6%2.1%3.8%0.03%
Jan 202663%17.6%7.9%5.3%1.9%4.3%0.05%
Feb 202665.5%18.6%6.8%4.6%2%2.5%0.05%
Mar 202673%14%5.1%4.2%1.9%1.9%0.03%
Apr 202668.8%15.9%5.8%4.8%2.6%2.1%0.03%
May 202685.6%7.6%2.8%1.9%1.2%1%0.01%
Jun 202670%13.5%7.4%3.3%4%1.8%0.03%
Jul 202670.8%13.6%6.1%4.1%3.3%2.2%0.03%
Aug 202670.9%13.7%7.5%3.3%2.7%1.8%0.02%
Sep 202679.2%10.4%3.8%3.1%2.1%1.4%0.02%

  1. 1.Day One

    79.2%

    Held 1st. 251K estimated branded searches, +46.5% vs prior month. Share +8.2 points.

  2. 2.Penzu

    10.4%

    Held 2nd. 33.1K estimated branded searches, 0% vs prior month. Share -3.3 points.

  3. 3.Daylio

    3.8%

    Held 3rd. 12.1K estimated branded searches, -33.1% vs prior month. Share -3.7 points.

  4. 4.Diarium

    3.1%

    Held 4th. 9.9K estimated branded searches, +22.2% vs prior month. Share -0.2 points.

  5. 5.Reflectly

    2.1%

    Held 5th. 6.6K estimated branded searches, 0% vs prior month. Share -0.6 points.

  6. 6.Apple Journal

    1.4%

    Held 6th. 4.4K estimated branded searches, 0% vs prior month. Share -0.4 points.

  7. 7.Journey

    0.02%

    Held 7th. 50 estimated branded searches, 0% vs prior month. Share 0 points.

Compare popularity between Daylio and its closest rivals

Every comparison with Daylio

13 comparisons

How has branded search demand for Daylio changed worldwide over the last 12 months?

3 findings
  • Across the 12 months ending September 2026, estimated monthly branded searches for Daylio worldwide fell from 14.8K to 12.1K.
  • Across the 12 months ending September 2026, Daylio’s share of searches among journaling apps worldwide decreased from 7.9% to 3.8%.
  • Across the 12 months ending September 2026, Daylio’s share of searches among journaling apps worldwide peaked at 7.9% in October 2025 and was lowest at 2.8% in May 2026.

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

6 changes

  1. In September 2026, Day One gained share of searches among journaling apps worldwide, from 70.9% to 79.2%.

  2. In September 2026, Daylio lost share of searches among journaling apps worldwide, from 7.5% to 3.8%.

  3. In September 2026, Penzu lost share of searches among journaling apps worldwide, from 13.7% to 10.4%.

  4. In September 2026, Reflectly lost share of searches among journaling apps worldwide, from 2.7% to 2.1%.

  5. Estimated monthly branded searches for Journey worldwide fell 54.5% over 12 measured months, from 110 to 50 in September 2026.

  6. Estimated monthly branded searches for Apple Journal worldwide fell 33.3% over 12 measured months, from 6.6K to 4.4K in September 2026.

How are Daylio’s branded searches counted?

1 search term

Brandwave collects information about searches that people make online using Daylio’s name. When viewed over time, estimated search volumes for this branded term can be used to understand whether interest in the brand is growing, holding steady, or fading.

  • daylio

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How the Brand Demand Index is measured

Where does Daylio compete?

Daylio is ranked in two competitor sets. Each share is worked out among that set's brands, so it differs from set to set.
Competitor setRankShare of searchesRanking
Mental health apps7th of 82.2%Show ranking
Journaling apps3rd of 73.8%Shown above
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Is Daylio your brand?

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