2Do vs Dia
2Do and Dia are both Productivity tools in our directory. This side-by-side comparison covers pricing, user ratings, supported platforms, key features and open-source status so you can decide which one fits your needs.
Side-by-side comparison
| Attribute | 2Do | Dia |
|---|---|---|
| Vendor | 2Do | The Browser Company |
| Rating | ★ 4.5 | ★ 4.4 |
| Pricing | Paid | Freemium |
| Platforms | macOS, iOS, Android | Desktop, macOS |
| Key features | Projects, Calendar view, Reminders sync | Chat with the current page, Skills and actions, Calmer UI than Arc |
| Headquarters | Mauritius | New York, USA |
| Founded | 2010 | 2025 |
| Open source | No | No |
Key differences
- 2Do has a higher user rating (4.5★ vs 4.4★).
- 2Do is Paid, while Dia is Freemium.
- 2Do runs on macOS, iOS, Android; Dia runs on Desktop, macOS.
Frequently asked questions
Is 2Do or Dia better?
By user rating, 2Do scores higher (4.5★ vs 4.4★). Both are capable Productivity tools, so review the feature comparison for your use case.
Which is cheaper, 2Do or Dia?
2Do is Paid and Dia is Freemium. Check each product page for current plan details.
Are 2Do and Dia open source?
No — neither 2Do nor Dia is open source.