Add voice calling and messaging to your mobile application
OpenAI-compatible API access to 200+ AI models with unified routing, failover, and billing
Stage
Not given
Not given
Founded
Not given
Not given
Based in
Not given
HK
Pricing model
Free
Freemium
Pricing
Free for single email address use, with optional paid plans for multiple email addresses
Free tier with 40 credits. Pay-as-you-go pricing: token-priced models bill input and output separately, request-priced models charge fixed amount per request. Video models priced per second or per request.
Key features
iOS and Android support
Call recording and retrieval
Anonymous customer-to-driver communication
Data connection calling
In-app messaging functionality
International calling support
Fully customizable setup
Call blocking and filtering
Speakerphone and Bluetooth support
OpenAI-compatible interface
200+ AI models from 10+ providers
99.9% uptime SLA
Pay-as-you-go pricing with no subscriptions
Smart routing and automatic failover
5-minute migration from OpenAI SDK
Token and request-based billing options
AES-256 encryption and TLS 1.3 security
Global acceleration via Cloudflare CDN
Real-time usage and cost tracking
What makes it different
No phone number required - users make and receive calls to email addresses instead
Works without phone numbers or user IDs like other messaging apps
Cost savings for businesses with no cell phone contracts needed
Eliminates roaming fees and number porting requirements
Integrates into existing apps instead of requiring separate app download
One API key to access 200+ models from all major providers without rewriting code
Automatic failover between providers ensures reliability when one degrades
Pay-as-you-go with no hidden fees or subscriptions, priced at or below official model prices
Change base URL to migrate from OpenAI in 5 minutes with no code rewrites
Unified billing and routing across text, image, video and audio models