How popular isDay One in search?
In August 2026, there were an estimated 172K branded searches for Day One worldwide which is up 47.2% over the last 11 months. Day One holds 78.2% estimated Share of Search among journaling apps worldwide and is ranked 1st 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 Day One, Penzu, Diarium, Reflectly. The figures are in the table below the chart.
View monthly share of search table
| Month | Day One | Penzu | Diarium | Reflectly | Journey |
|---|---|---|---|---|---|
| Oct 2025 | 70.6% | 20% | 6% | 3.3% | 0.07% |
| Nov 2025 | 76% | 17.9% | 3.6% | 2.4% | 0.04% |
| Dec 2025 | 74.7% | 17.3% | 5.2% | 2.8% | 0.04% |
| Jan 2026 | 71.7% | 20% | 6% | 2.2% | 0.06% |
| Feb 2026 | 72.2% | 20.5% | 5% | 2.2% | 0.06% |
| Mar 2026 | 78.5% | 15% | 4.5% | 2% | 0.04% |
| Apr 2026 | 74.7% | 17.3% | 5.2% | 2.8% | 0.04% |
| May 2026 | 88.9% | 7.9% | 1.9% | 1.3% | 0.01% |
| Jun 2026 | 77% | 14.9% | 3.6% | 4.4% | 0.04% |
| Jul 2026 | 77.2% | 14.8% | 4.4% | 3.6% | 0.03% |
| Aug 2026 | 78.2% | 15.1% | 3.7% | 3% | 0.03% |
| Sep 2026 | — | — | — | — | — |
| Rank | Brand | Share of Search | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, held 1st | 78.2% | 172K | +21.2% | +1 points | |
| 2, held 2nd | 15.1% | 33.1K | +22.1% | +0.3 points | |
| 3, held 3rd | 3.7% | 8.1K | 0% | -0.7 points | |
| 4, held 4th | 3% | 6.6K | 0% | -0.6 points | |
| 5, held 5th | 0.03% | 60 | 0% | 0 points |
1.
Day One78.2%
Held 1st. 172K estimated branded searches, +21.2% vs prior month. Share +1 points.
2.
Penzu15.1%
Held 2nd. 33.1K estimated branded searches, +22.1% vs prior month. Share +0.3 points.
3.
Diarium3.7%
Held 3rd. 8.1K estimated branded searches, 0% vs prior month. Share -0.7 points.
3%
Held 4th. 6.6K estimated branded searches, 0% vs prior month. Share -0.6 points.
5.
Journey0.03%
Held 5th. 60 estimated branded searches, 0% vs prior month. Share 0 points.
Compare search popularity between Day One and its closest rivals
Every comparison with Day One
4 comparisons
How has branded search demand for Day One changed worldwide over the last 12 months?
3 findings
- Across the 11 months ending August 2026, estimated monthly branded searches for Day One worldwide rose from 117K to 172K.
- Across the 11 months ending August 2026, Day One’s estimated Share of Search among journaling apps worldwide increased from 70.6% to 78.2%.
- Across the 11 months ending August 2026, Day One’s estimated Share of Search among journaling apps worldwide peaked at 88.9% in May 2026 and was lowest at 70.6% in October 2025.
How did search popularity change for journaling apps worldwide in August 2026?
4 changes
In August 2026, Day One gained estimated Share of Search among journaling apps worldwide, from 77.2% to 78.2%.
In August 2026, Diarium lost estimated Share of Search among journaling apps worldwide, from 4.4% to 3.7%.
In August 2026, Reflectly lost estimated Share of Search among journaling apps worldwide, from 3.6% to 3%.
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 these branded terms can be used to understand whether interest in the brand is growing, holding steady, or fading.
2 branded search terms
- day one
- day one journal
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