Free trial
SignStream Chat includes 60 seconds of free translation each week, which can be used to test the available languages and Digital Signers before committing to a paid arrangement.
Learn moreSignapse
AI sign language translation for video, live streams and travel
Beginner API
What is Signapse?
Signapse generates British and American Sign Language translations using photo-realistic digital signers, covering post-production video through SignStudio, real-time chat and API streams through SignStream, and travel announcements for transport operators.
Signapse is an AI sign language translation platform built around the idea that sign language should be part of everyday information, not an afterthought. The company provides British Sign Language (BSL) and American Sign Language (ASL) translation through photo-realistic digital signers, with German Sign Language (DGS) listed as coming soon. Its stated mission is to remove communication barriers for Deaf people, and the team is made up of Deaf and hearing entrepreneurs, engineers and researchers. The product line covers several distinct use cases. SignStudio is the video translation platform for post-production work: teams submit recorded content and receive BSL or ASL translated versions, choosing from a set of Digital Signers and customising the output video. SignStream covers real-time translation, including a chat tool where a typed message becomes a sign language video, and an API offering for developers who want to embed live or generated signing into their own products and manage API keys through a dedicated developer area. Signapse also packages a transport translator aimed at travel operators, which is why train operators, airports and rail bodies appear among its customers. The audience is organisational rather than individual. Broadcasters, transport authorities, universities, councils, health bodies and brands with public-facing content are the core buyers, since they carry accessibility obligations and high volumes of video or announcements. The homepage cites over 5,000 BSL train announcements generated daily across the UK, and lists clients including train operators, the NHS and international broadcasters. Anyone can sample the technology through SignStream Chat with 60 seconds of free translation each week. Against alternatives, Signapse positions itself on realism and scale rather than on being a general translation utility. Its competition is a mix of human interpreter booking services, which remain the default for high-stakes live settings, and generic captioning tools, which solve the same accessibility problem in written form. Signapse argues that written text is a weak substitute for many Deaf users whose first language is sign language. Pricing is not published on the homepage, so demo booking is the practical route for commercial evaluation.
How do you use Signapse?
1Try the translation engine with SignStream Chat
Open the chat tool and type a short message. A sign language video is generated from the text, which gives a quick sense of how the digital signers move and how readable the output is.2Pick the product that matches your content
The homepage splits work into post-production video, real-time streaming, and transport announcements. Use the relevant product page to confirm which one covers your format before going further.
3Choose your sign language and digital signer
Signapse supports British Sign Language and American Sign Language. Review the platform page for SignStudio to see the available Digital Signers and the customisation options for translated video.
4Assess the developer route if you need live signing
Teams embedding signing in their own product should look at the SignStream API, create a first stream and manage API keys from the developer area.
5Check comparable deployments
The case studies show how rail operators, airports and broadcasters have applied sign language translation in practice, which helps when building an internal business case.
6Book a demo to scope commercial terms
Pricing and volume terms are not published, so a demo conversation is the route to a quote and to setting up access for an organisation.
Pros and cons
Pros
- Supports both British and American Sign Language, with German Sign Language announced as coming soonAI
- Covers three delivery modes in one product family: post-production video, real-time chat and an embeddable APIAI
- Digital signers are customisable, so translated videos can be matched to a brand or presenter styleAI
- Public track record with rail, aviation, health and broadcasting organisations, plus a cited figure of over 5,000 BSL train announcements a dayAI
- Free weekly allowance through SignStream Chat lets teams test the output before committingAI
Cons
- No public pricing anywhere on the homepage, so budgets cannot be scoped without booking a demoAI
- Language coverage is limited to BSL and ASL for now, which excludes most non-English speaking marketsAI
- Digital signers are avatars, not human interpreters, so highly technical or fast-moving live content may not suit the toolAI
- Core capabilities such as SignStudio and the API are geared to organisations, leaving little for solo creatorsAI
- Little detail on the homepage about how translation accuracy is assessed or reviewed by Deaf signersAI
How much does Signapse cost?
Integrations
A developer API (SignStream Dev) lets organisations embed sign language translation in their own products, with API key management handled in a dedicated developer area.
Learn moreFeatures
SignStudio handles post-production video translation into BSL and ASL with customisable Digital Signers. SignStream provides real-time translation, including a chat tool that converts typed messages into sign language video, and a developer API with key management. A transport translator is packaged for travel operators, and the company reports over 5,000 BSL train announcements generated daily.
Learn moreFrequently asked questions about Signapse
Does Signapse offer a free trial?
SignStream Chat includes 60 seconds of free translation each week, which can be used to test the available languages and Digital Signers before committing to a paid arrangement.Does Signapse have an API?
Yes, Signapse offers an API.How do you use Signapse?
The walkthrough on this page covers 6 steps: 1. Try the translation engine with SignStream Chat 2. Pick the product that matches your content 3. Choose your sign language and digital signer 4. Assess the developer route if you need live signing 5. Check comparable deployments 6. Book a demo to scope commercial terms.What platforms does Signapse support?
Signapse is available on Web App.What does Signapse integrate with?
A developer API (SignStream Dev) lets organisations embed sign language translation in their own products, with API key management handled in a dedicated developer area.What are the limitations of Signapse?
No public pricing anywhere on the homepage, so budgets cannot be scoped without booking a demo. Language coverage is limited to BSL and ASL for now, which excludes most non-English speaking markets. Digital signers are avatars, not human interpreters, so highly technical or fast-moving live content may not suit the tool.
Status
StatusActive
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Added10/21/2026
Platforms
Web App
Pricing
FreemiumPaid
