Opal vs Semantic Scholar
Opal and Semantic Scholar 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 | Opal | Semantic Scholar |
|---|---|---|
| Vendor | Opal | Allen Institute for AI |
| Rating | ★ 4.7 | ★ 4.6 |
| Pricing | Paid | Free |
| Platforms | iOS | Web, API |
| Key features | App limits, Deep Focus, iOS Screen Time+ | 200M+ paper index, AI TLDR summaries per paper, Semantic & filtered search |
| Headquarters | USA | Seattle, USA |
| Founded | 2020 | 2015 |
| Open source | No | No |
Key differences
- Opal has a higher user rating (4.7★ vs 4.6★).
- Opal is Paid, while Semantic Scholar is Free.
- Opal runs on iOS; Semantic Scholar runs on Web, API.
Frequently asked questions
Is Opal or Semantic Scholar better?
By user rating, Opal scores higher (4.7★ vs 4.6★). Both are capable Productivity tools, so review the feature comparison for your use case.
Which is cheaper, Opal or Semantic Scholar?
Opal is Paid and Semantic Scholar is Free. Check each product page for current plan details.
Are Opal and Semantic Scholar open source?
No — neither Opal nor Semantic Scholar is open source.