Dubly.AI vs Papercup (RWS)
Dubly.AI and Papercup (RWS) are often compared, but they solve fundamentally different problems. Dubly.AI is a video dubbing & translation platform built for enterprise video translation. Papercup (RWS) focuses on ai + human qa dubbing for media and enterprise, making it a better fit for broadcasters needing multilingual dubbing at scale. We tested both platforms to break down where each one excels and where it falls short.
The Key Difference
The most significant gap between these two platforms is lip sync quality. Dubly.AI is rated Excellent in our testing versus Papercup (RWS)'s Basic — a difference that is clearly visible in side-by-side testing. Dubly.AI handles mouth movements, facial expressions, and speech timing with noticeably higher accuracy, which matters for professional content where viewers will notice mismatched lip movements.
Feature Comparison
When comparing features, pay attention to more than just checkboxes. Dubly.AI supports 32+ languages and Papercup (RWS) offers 70+ — but raw language count is less important than quality in your target languages. Look at lip sync ratings, multi-speaker handling, and whether the platform produces finished video or just audio tracks.
| Feature | Dubly.AI | Papercup (RWS) |
|---|---|---|
| Primary Focus | Video dubbing & translation | AI + human QA dubbing for media and enterprise |
| Languages | 32+ | 70+ |
| Lip Sync | Yes (Excellent) | Yes (Basic) |
| Voice Cloning | ✓ Yes | ✗ No |
| Video Output | ✓ Yes | ✓ Yes |
| Avatar Creation | ✗ No | ✗ No |
| API Access | ✓ Yes | ✓ Yes |
| Multi-Speaker | Auto detection | Auto detection |
| Custom Vocabulary | ✓ Yes | ✓ Yes |
| Unlimited Revisions | ✓ Yes | ✗ No |
Pricing
Pricing in the AI dubbing space is notoriously hard to compare apples-to-apples. Dubly.AI uses a credit-based model starting at €79/month, while Papercup (RWS) charges via per-minute, enterprise quotes starting at Custom quotes only. The real cost depends on your volume, whether you need lip sync (which often costs extra), and how many team members need access.
| Detail | Dubly.AI | Papercup (RWS) |
|---|---|---|
| Starting Price | €79/month | Custom quotes only |
| Pricing Model | Credit-based | Per-minute, enterprise quotes |
| Free Tier | ✗ No | ✗ No |
| Enterprise Plans | ✓ Yes | ✓ Yes |
Data Privacy & Compliance
Both platforms process data on EU servers, but the details differ. Look at the specific server location, whether a Data Processing Agreement is available, and crucially, whether the provider trains its AI models on your content. For regulated industries and European businesses, these distinctions can be deal-breakers.
| Requirement | Dubly.AI | Papercup (RWS) |
|---|---|---|
| Server Location | Germany (EU) | UK/Global (RWS infrastructure) |
| DPA Available | ✓ Yes | ✓ Yes |
| No AI Training | ✓ Yes | ✗ No |
Strengths & Weaknesses
Dubly.AI
Strengths
- ✓ Highest lip sync quality we tested — results look native even on difficult footage
- ✓ Full GDPR compliance with German servers
- ✓ Custom vocabulary and brand voice controls
- ✓ Unlimited revisions on all plans
Weaknesses
- ✗ No free tier — free trial only (1 minute)
- ✗ Lip sync is an optional add-on that doubles minute usage
- ✗ UI less polished than some competitors
Papercup (RWS)
Strengths
- ✓ Human-in-the-loop QA — every project reviewed by linguists for broadcast-grade quality
- ✓ 70+ languages with natural-sounding synthetic voices trained on licensed voice data
- ✓ Strong media/broadcasting pedigree with clients like Sky News and Bloomberg
- ✓ Three-layer review process: script validation, cultural review, audio QA
Weaknesses
- ✗ No self-serve access — requires booking a demo and getting a custom quote
- ✗ Opaque pricing with no published rates
- ✗ No true voice cloning — uses pre-built synthetic voices, not clones of original speakers
Frequently Asked Questions
Is Dubly.AI better than Papercup (RWS)?
It depends on your use case. Dubly.AI is best for enterprise video translation, while Papercup (RWS) excels at broadcasters needing multilingual dubbing at scale. This comparison breaks down the differences across lip sync quality, pricing, features, and data privacy.
How much does Dubly.AI cost compared to Papercup (RWS)?
Dubly.AI starts at €79/month (Credit-based). Papercup (RWS) starts at Custom quotes only (Per-minute, enterprise quotes). Both offer different pricing models, so the actual cost depends on your usage volume.
Which tool has better lip sync quality?
Dubly.AI is rated Excellent versus Papercup (RWS)'s Basic in our testing.
Read Full Reviews
Dive deeper into each platform with our individual reviews.
Continue Reading
Sources & Further Reading
- Dubly.AI Official Website — Dubly.AI, 2026
- Papercup (RWS) Official Website — Papercup (RWS), 2026
- AI Video Translation Market Report — Market.us, October 2025