# Apps

10 apps for AI voice agent platforms and vendors.

- [Retell AI](https://voiceagents.fyi/apps/retell-ai.md): Platform for building, testing and deploying AI voice agents that answer and make phone calls.
- [Vapi](https://voiceagents.fyi/apps/vapi.md): Developer platform for building voice AI agents with your choice of speech, language and voice models.
- [Bland](https://voiceagents.fyi/apps/bland-ai.md): Enterprise voice AI platform for phone agents that handle inbound and outbound calls at scale.
- [Calendly](https://voiceagents.fyi/apps/calendly.md): Scheduling software that voice agents and booking flows can use to put appointments on real calendars.
- [Coval](https://voiceagents.fyi/apps/coval.md): Testing and evaluation platform that simulates calls to check voice agents before and after launch.
- [Deepgram](https://voiceagents.fyi/apps/deepgram.md): Speech-to-text, text-to-speech and voice agent APIs built for real-time phone conversations.
- [ElevenLabs](https://voiceagents.fyi/apps/elevenlabs.md): AI voice generator and agents platform with lifelike text-to-speech voices in many languages.
- [LiveKit](https://voiceagents.fyi/apps/livekit.md): Open source framework and cloud for building real-time voice AI agents over phone and WebRTC.
- [Synthflow](https://voiceagents.fyi/apps/synthflow.md): Enterprise AI voice agent platform for receptionists, appointment booking, IVR and customer service calls.
- [Twilio Voice](https://voiceagents.fyi/apps/twilio-voice.md): Programmable voice API and phone numbers that connect AI agents to the phone network.