Aculab Cloud vs Plivo Voice API
Aculab Cloud
aculab.com
Plivo Voice API
plivo.comSide by side
| Figure | Aculab Cloud | Plivo Voice API |
|---|---|---|
| Price from | — | $0.01/mo |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 3 | 3 |
| Spec score · Voice APIs | 8.3 (#5) | 8.1 (#8) |
| Founded | 1978 | 2011 |
| Headquarters | Milton Keynes, United Kingdom | Austin, Texas, USA |
| Security | Aculab Cloud runs on AWS; its web services are accessible over HTTPS, UAS connections use SSL by default, and customers can encrypt media files with keys supplied at runtime. | Plivo says customer data is logically separated, encrypted in transit with TLS 1.2 or greater, and encrypted at rest with AES-256. |
| Support | Free developer support includes documentation, quickstart guides, email support, and bug reporting; paid contracts can offer guaranteed response times and 24×7 emergency support. | Plivo says it responds to priority 1 business-critical incidents around the clock, 365 days a year. |
Plans
Plivo Voice API
- Pay as you goPriced on request
- Voice API pay as you go$0.01 a month
- Enterprise$1,000 a month
In their own words
Aculab Cloud
Aculab Cloud provides APIs for building applications that handle voice and video calls, messaging, and inbound or outbound fax. It supports calls to telephone numbers and SIP addresses, and its WebRTC interface can place live calling in a web page. Listed capabilities include live speaker detection, speech recognition, translation, text-to-speech, voice biometrics, SMS, and MMS. The REST API works with Python, C#, VB, Java, PHP, or other scripting languages; REST applications run on a web server you host. The UAS API supports Python, C#, VB, F#, and C++, with applications running in a User Application Server installed on your platform. Speech recognition uses Google Speech-to-Text, while text-to-speech supports Amazon Polly and Cepstral engines. Aculab Cloud runs on AWS; web services use HTTPS, UAS connections use SSL by default, and customers can encrypt media files with keys supplied at runtime. Accounts are assigned to Europe, USA-East, or USA-West (beta). The free Trial includes $10 in credit for one month. Production is pay-as-you-go, with rates shown in the Cloud Console; Premium usage is invoiced and requires contacting Aculab.
Plivo Voice API
Plivo Voice API lets web and mobile applications make and receive calls programmatically, play audio, record conversations, and build interactive voice applications. It connects calls across PSTN, SIP, and WebRTC endpoints. Features include queues, conferences, text to speech, dual-channel recording, DTMF input, speech recognition, answering machine detection, voicemail transcription, and custom caller ID. Its Audio Streams API sends raw audio from active calls over WebSocket for transcription, voice AI, analytics, or custom processing. Plivo lists SDKs for Python, Node.js, Ruby, PHP, Java,.NET, and Go, along with integrations including Zapier, n8n, Pipedream, Tray, EngageBay, and Microsoft Power Automate. The service is listed for Android, iOS, web, and API. The Voice API pay-as-you-go plan is listed at $0.01 a month; call routes and features have separate rates. Calls are billed in 60-second increments. Pay-as-you-go accounts receive $10 in free credits without a credit card. Plivo was founded in 2011 and is headquartered in Austin, Texas.