Day One vs Diarium:Which is more popular by branded search?
In August 2026, Diarium had more branded searches than Day One among journaling apps worldwide. Diarium was estimated to have 8.1K branded searches compared to Day One’s 6.6K, and held a 14.9% Share of Search versus Day One’s 12.1%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Day One or Diarium?
Compare the apps people keep a journal in. 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.
Share of Search by month for Diarium, Day One. The figures are in the table below the chart.
View monthly share of search table
| Month | Penzu | Diarium | Day One | Reflectly | Journey |
|---|---|---|---|---|---|
| Oct 2025 | 60.1% | 18% | 12% | 9.8% | 0.22% |
| Nov 2025 | 66.7% | 13.3% | 10.9% | 8.9% | 0.16% |
| Dec 2025 | 58.5% | 17.5% | 14.3% | 9.5% | 0.12% |
| Jan 2026 | 60.4% | 18.1% | 14.8% | 6.6% | 0.18% |
| Feb 2026 | 64.3% | 15.7% | 12.8% | 7% | 0.19% |
| Mar 2026 | 59.6% | 17.8% | 14.6% | 7.9% | 0.14% |
| Apr 2026 | 58.5% | 17.5% | 14.3% | 9.5% | 0.14% |
| May 2026 | 62.2% | 15.2% | 12.4% | 10.1% | 0.09% |
| Jun 2026 | 57.3% | 14% | 11.4% | 17.1% | 0.14% |
| Jul 2026 | 55.9% | 16.7% | 13.6% | 13.6% | 0.12% |
| Aug 2026 | 60.8% | 14.9% | 12.1% | 12.1% | 0.11% |
| Sep 2026 | — | — | — | — | — |
How has the Day One and Diarium comparison changed over the last 12 months?
3 findings
- Diarium was ahead of Day One in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Day One’s estimated Share of Search among journaling apps worldwide moved from 12% to 12.1%, and its estimated monthly branded searches held steady at 6.6K.
- Across the 11 months ending August 2026, Diarium’s estimated Share of Search among journaling apps worldwide moved from 18% to 14.9%, and its estimated monthly branded searches moved from 9.9K to 8.1K.
How did search popularity change for journaling apps worldwide in August 2026?
2 changes
In August 2026, Diarium lost estimated Share of Search among journaling apps worldwide, from 16.7% to 14.9%.
In August 2026, Day One lost estimated Share of Search among journaling apps worldwide, from 13.6% to 12.1%.
How each brand is measured
Brandwave collects information about searches that people make online using Day One’s and Diarium’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.
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.