Acapela Group vs SESTEK Text-to-Speech
Acapela Group
acapela-group.comSESTEK Text-to-Speech
sestek.comSide by side
| Figure | Acapela Group | SESTEK Text-to-Speech |
|---|---|---|
| Price from | €8.25/mo | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 9 | 3 |
| Spec score · Text-to-Speech Software | 9.3 (#2) | 7.9 (#124) |
| Spec score · Text-to-speech tools | 9.2 (#9) | 8.1 (#90) |
| API access | Yes | Yes |
| Deployment | Customer interaction products are available through cloud, sovereign cloud, on-premises, and embedded deployments. | TTS is available for cloud or on-premises deployment with the same feature set in either environment. |
| Headquarters | Mons, Belgium | Istanbul, Türkiye |
| Languages | The company says its voices cover over 30 languages. | The product supports more than 20 languages, with accent-specific voices including Gulf, Najdi, Kuwaiti, and Emirati Arabic, and American and British English. |
| Platforms | web,windows,macos,linux,ios,android,api | Windows,Linux,API |
| SSML | Acapela’s real-time neural voices support SSML so developers can control speech rendering with markup. | TTS supports commonly used SSML tags for pauses, pronunciation, external audio, and voice switching. |
| Support | Acapela says its team advises customers on voice selection and project requirements, and asks them to provide project, application, operating system, and language details. | The SESTEK site links to a customer support portal. |
| Voice cloning | Yes | Yes |
| What it does | Acapela provides text-to-speech and digital voice solutions for applications, devices and services, including custom and personalized voices. | SESTEK Text-to-Speech converts written content into clear, expressive, human-like speech. |
Plans
Acapela Group
- Yearly subscription€99 a year
- One-time license€999 a month
- Acapela Android voice€3.99, paid once
- Acapela TTS voices for Google Play€3.99, paid once
- My-Own-Voice yearly subscription€99 a year
- My-Own-Voice one-time licence€999, paid once
- Virtual Speaker€1,500, paid once
- Virtual Speaker first prepaid package€1,500, paid once
- Acapela TTS voices for NVDA€5,999, paid once
SESTEK Text-to-Speech
- Custom agreementPriced on request
- Pay-as-you-goPriced on request
- SubscriptionPriced on request
In their own words
Acapela Group
Acapela Group creates synthetic voices that turn written content into speech for services, apps, and devices. Its portfolio includes more than 250 voices in over 30 languages, with voice cloning, API access, and commercial use supported. Customer interaction products can be deployed through cloud, sovereign cloud, on-premises, or embedded setups. Acapela Cloud provides a web interface for creating and editing AI voice prompts and organizing files by project. Developers can use the Windows Server toolkit with proprietary APIs, SAPI5,.NET, C/C++, Java, MRCP v2, and W3C SSML. Rule-based pronunciation and lexicon tools allow specific terms to be tuned across languages. Acapela identifies voice agents and interactive voice response systems as use cases, and its NVDA voices serve blind and vision-impaired computer users. Platforms include Android, API, iOS, Linux, macOS, self-hosted, web, and Windows. The yearly subscription is €99 a year, billed excluding VAT; a three-month voice evaluation is included. Acapela is based in Mons, Belgium.
SESTEK Text-to-Speech
SESTEK Text-to-Speech converts written text into speech for business applications. It supports more than 20 languages and offers accent-specific voices such as Gulf, Najdi, Kuwaiti, and Emirati Arabic, along with American and British English. Users can adjust tone, pace, emphasis, and volume, and define pronunciations for abbreviations, brand names, product codes, and specialized terms. Common SSML tags cover pauses, pronunciation, external audio, and voice switching. SESTEK can develop a voice model for an organization that is exclusive to it. Deployment is available on-premises or in the cloud, with the same feature set in either arrangement. Standard voices run on Windows, Linux, Docker Compose, and Kubernetes without a GPU; Premium voices require a GPU and run on Linux, Docker Compose, and Kubernetes. APIs and SDKs support integration with existing software. The platform also supports Azure and ElevenLabs integrations and can connect to SESTEK Speech Recognition, Virtual Translator, and AI Agents. Exports include WAV, Opus, MP3, and FLV. Licensing is available through pay-as-you-go, subscription, or custom agreement, but pricing is on request.