Duolingo vs Opennote
Duolingo vs Opennote, compared side by side on 18 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Duolingo is on 67/100 and Opennote on 53/100.
Where each one leads
Duolingo
- our overall score: 67/100 against 53/100
- agent readiness: 53/100 against 38/100
- domain rating: 88/100 against 42/100
- headcount: 1,962 against 5
- funding raised: $35.0M against $850K
- LinkedIn following: 741,708 against 4,426
Opennote
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Duolingo | Opennote |
|---|---|---|
| What it is | Duolingo is the world's most popular way to learn a language, offering bite-sized, game-like lessons to make language learning fun, free, and accessible. | Opennote is an interactive AI tutor that personalizes learning by adapting to individual styles and transforming notes into dynamic, interactive educational content. |
| Category | Language Learning Platform, Language Learning | EdTech, AI Tutor, Personalized Learning, Generative AI |
| Sells toBusiness model | B2C | B2C, B2B |
| Offering | Not published | Software |
| Founded | 2011 | 2025 |
| Headquarters | Not published | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Duolingo | Opennote |
|---|---|---|
| Employees | 1,962 | 5 |
| Open roles | 69 | Not published |
| Total funding | $35.0M | $850K |
| LinkedIn followers | 741,708 | 4,426 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Duolingo | Opennote |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 67/100 | 53/100 |
| Traction | 58/100 | 37/100 |
| Team | 10/100 | 70/100 |
| Search visibility | 45/100 | 34/100 |
| Quality | 89/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (53/100) | F (38/100) |
| Domain ratingLink authority, 0-100 | 88/100 | 42/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Duolingo | Opennote |
|---|---|---|
| Hosting | AWS | Vercel |
| CDN | CloudFront | Vercel |
| Frameworks | Not detected | Next.js, Tailwind CSS |
| Analytics | Google Tag Manager | Not detected |
Product and pricing
| Measure | Duolingo | Opennote |
|---|---|---|
| Key features | Gamified Lessons, Personalized Learning, Wide Range of Languages, Free Access, Progress Tracking | Interactive AI Tutor, Dynamic Content Creation, Personalized Learning Environment, Video Vault & Content Library, Threads and Highlights, APAC Dedicated Services |
Duolingo vs Opennote: common questions
Which is better, Duolingo or Opennote?
On our 0-100 score Duolingo rates higher (67/100 against 53/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 18 data points above: read the rows that match what you are buying for.
How do Duolingo and Opennote compare on the numbers?
Duolingo leads on our overall score (67/100 against 53/100), agent readiness (53/100 against 38/100), domain rating (88/100 against 42/100), headcount (1,962 against 5), funding raised ($35.0M against $850K), LinkedIn following (741,708 against 4,426).
Read the full Duolingo review and pricing or the Opennote review and pricing. You can also browse other Duolingo alternatives we track.