Duolingo vs Rosetta Stone:Which is searched more?
In September 2026, Duolingo had more branded searches than Rosetta Stone among language learning apps worldwide. Duolingo had about 9.1 million branded searches, while Rosetta Stone had 550,000. Duolingo made up 88.8% of all language learning app searches we track, and Rosetta Stone accounted for 5.3%. These are worldwide searches for English-language branded terms.
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Is Duolingo or Rosetta Stone more popular in search?
Compare the apps people use to learn a language. 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 searches by month for Duolingo, Rosetta Stone. The figures are in the table below the chart.
View monthly share of searches table
| Month | Duolingo | Rosetta Stone | Busuu | Babbel | Memrise | Pimsleur | Drops |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 88.2% | 4.3% | 2.4% | 2.4% | 1.9% | 0.71% | 0.08% |
| Nov 2025 | 85.3% | 5.1% | 2.8% | 2.8% | 2.8% | 1% | 0.09% |
| Dec 2025 | 87.1% | 4.3% | 2.9% | 2.9% | 1.6% | 1.3% | 0.08% |
| Jan 2026 | 85.2% | 5.1% | 2.8% | 3.4% | 2.3% | 1% | 0.11% |
| Feb 2026 | 87.9% | 4.3% | 2.4% | 2.9% | 1.6% | 0.87% | 0.08% |
| Mar 2026 | 87.1% | 4.3% | 2.9% | 2.9% | 1.9% | 0.86% | 0.08% |
| Apr 2026 | 89.1% | 3.6% | 2.4% | 2.4% | 1.6% | 0.88% | 0.08% |
| May 2026 | 89.3% | 3.6% | 2.4% | 2.4% | 1.3% | 0.88% | 0.06% |
| Jun 2026 | 89.7% | 3.6% | 2.4% | 2% | 1.3% | 0.89% | 0.06% |
| Jul 2026 | 88% | 4.3% | 2.9% | 2.4% | 1.3% | 1.1% | 0.08% |
| Aug 2026 | 89.2% | 4.4% | 2.4% | 2% | 1.1% | 0.88% | 0.06% |
| Sep 2026 | 88.8% | 5.3% | 2.4% | 1.6% | 1.1% | 0.72% | 0.05% |
How has the Duolingo and Rosetta Stone comparison changed over the last 12 months?
3 findings
- Duolingo was ahead of Rosetta Stone in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Duolingo’s share of searches among language learning apps worldwide moved from 88.2% to 88.8%, and its estimated monthly branded searches held steady at 9.1M.
- Across the 12 months ending September 2026, Rosetta Stone’s share of searches among language learning apps worldwide moved from 4.3% to 5.3%, and its estimated monthly branded searches moved from 450K to 550K.
How did search popularity change for language learning apps worldwide in September 2026?
1 change
In September 2026, Rosetta Stone gained share of searches among language learning apps worldwide, from 4.4% to 5.3%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Duolingo’s and Rosetta Stone’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.
Duolingo
1 branded search term
- duolingo
Rosetta Stone
1 branded search term
- rosetta stone
Other head-to-heads among language learning apps
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