How popular isDay One in search?
In August 2026, there were an estimated 6.6K branded searches for Day One worldwide which held steady over the last 11 months. Day One holds 12.1% estimated Share of Search among journaling apps worldwide and is ranked 3rd of 5 competitors for search popularity. These are worldwide searches for English-language branded terms.
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Which journaling apps compete with Day One?
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
| 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 | — | — | — | — | — |
| Rank | Brand | Share of Search | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 60.8% | 33.1K | +22.1% | +4.9 points | |
| 2, held 2nd | 14.9% | 8.1K | 0% | -1.8 points | |
| 3, held 3rd | 12.1% | 6.6K | 0% | -1.5 points | |
| 4, held 4th | 12.1% | 6.6K | 0% | -1.5 points | |
| 5, held 5th | 0.11% | 60 | 0% | 0 points |
1.
Penzu60.8%
Held 1st. 33.1K estimated branded searches, +22.1% vs prior month. Share +4.9 points.
2.
Diarium14.9%
Held 2nd. 8.1K estimated branded searches, 0% vs prior month. Share -1.8 points.
3.
Day One12.1%
Held 3rd. 6.6K estimated branded searches, 0% vs prior month. Share -1.5 points.
12.1%
Held 4th. 6.6K estimated branded searches, 0% vs prior month. Share -1.5 points.
5.
Journey0.11%
Held 5th. 60 estimated branded searches, 0% vs prior month. Share 0 points.
Compare search popularity between Day One and its closest rivals
How has branded search demand for Day One changed worldwide over the last 12 months?
2 findings
- Across the 11 months ending August 2026, estimated monthly branded searches for Day One worldwide held steady at 6.6K.
- Across the 11 months ending August 2026, Day One’s estimated Share of Search among journaling apps worldwide peaked at 14.8% in January 2026 and was lowest at 10.9% in November 2025.
How did search popularity change for journaling apps worldwide in August 2026?
5 changes

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

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%.

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

Estimated monthly branded searches for Journey worldwide fell 50% over 11 measured months, from 120 to 60 in August 2026.
How is Day One measured?
Brandwave collects information about searches that people make online using Day One’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
- day one journal
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Is Day One your brand?
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