Brandwave

How popular isDiarium in search?

In August 2026, there were an estimated 8.1K branded searches for Diarium worldwide which is down 18.2% over the last 11 months. Diarium holds 14.9% estimated Share of Search among journaling apps worldwide and is ranked 2nd of 5 competitors for search popularity. These are worldwide searches for English-language branded terms.

Share of Search, August 2026
  1. Penzu60.8%
  2. Diarium14.9%
  3. Day One12.1%
  4. Reflectly12.1%
  5. Journey0.11%
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Which journaling apps compete with Diarium?

Diarium against journaling apps worldwide, by month

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

View monthly share of search table
MonthPenzuDiariumDay OneReflectlyJourney
Oct 202560.1%18%12%9.8%0.22%
Nov 202566.7%13.3%10.9%8.9%0.16%
Dec 202558.5%17.5%14.3%9.5%0.12%
Jan 202660.4%18.1%14.8%6.6%0.18%
Feb 202664.3%15.7%12.8%7%0.19%
Mar 202659.6%17.8%14.6%7.9%0.14%
Apr 202658.5%17.5%14.3%9.5%0.14%
May 202662.2%15.2%12.4%10.1%0.09%
Jun 202657.3%14%11.4%17.1%0.14%
Jul 202655.9%16.7%13.6%13.6%0.12%
Aug 202660.8%14.9%12.1%12.1%0.11%
Sep 2026—————

  1. 1.Penzu

    60.8%

    Held 1st. 33.1K estimated branded searches, +22.1% vs prior month. Share +4.9 points.

  2. 2.Diarium

    14.9%

    Held 2nd. 8.1K estimated branded searches, 0% vs prior month. Share -1.8 points.

  3. 3.Day One

    12.1%

    Held 3rd. 6.6K estimated branded searches, 0% vs prior month. Share -1.5 points.

  4. 4.Reflectly

    12.1%

    Held 4th. 6.6K estimated branded searches, 0% vs prior month. Share -1.5 points.

  5. 5.Journey

    0.11%

    Held 5th. 60 estimated branded searches, 0% vs prior month. Share 0 points.

Compare search popularity between Diarium and its closest rivals

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

  • Across the 11 months ending August 2026, estimated monthly branded searches for Diarium worldwide fell from 9.9K to 8.1K.
  • Across the 11 months ending August 2026, Diarium’s estimated Share of Search among journaling apps worldwide decreased from 18% to 14.9%.
  • Across the 11 months ending August 2026, Diarium’s estimated Share of Search among journaling apps worldwide peaked at 18.1% in January 2026 and was lowest at 13.3% in November 2025.

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

  1. In August 2026, Penzu gained estimated Share of Search among journaling apps worldwide, from 55.9% to 60.8%.

  2. In August 2026, Diarium lost estimated Share of Search among journaling apps worldwide, from 16.7% to 14.9%.

  3. In August 2026, Day One lost estimated Share of Search among journaling apps worldwide, from 13.6% to 12.1%.

  4. In August 2026, Reflectly lost estimated Share of Search among journaling apps worldwide, from 13.6% to 12.1%.

  5. Estimated monthly branded searches for Journey worldwide fell 50% over 11 measured months, from 120 to 60 in August 2026.

How is Diarium measured?

Brandwave collects information about searches that people make online using Diarium’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.

1 branded search term

  • diarium

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How the Brand Demand Index is measured

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