The Modern
Twilio Alternative
One API for SMS, WhatsApp, Voice, Email, Telegram, Instagram and Messenger. Simpler pricing without carrier fee surprises. AI agents for text and voice included. See why developers are making the switch.
No credit card required. Start with $2 of credit included.
Feature Comparison
Everything you need for multi-channel messaging, plus AI agents for text and voice that Twilio doesn't offer.
| Feature | Zavu | Twilio |
|---|---|---|
| SMS API | ||
| WhatsApp Business API | ||
| Email API | SendGrid | |
| Voice API (TTS) | ||
| Voice AI agents that answer and place calls | Assemble yourself | |
| Telegram, Instagram and Messenger APIs | — | |
| Built-in AI Agents | — | |
| Knowledge Base (RAG) | — | |
| Visual Flow Builder | — | |
| Unlimited WhatsApp on paid plans | — | |
| US number included in plan | — | |
| No carrier fees | — |
Pricing Comparison
Transparent pricing. No carrier fee surprises on your bill.
| Item | Zavu | Twilio |
|---|---|---|
| SMS to US (per message) | From $0.004 | $0.0083 + carrier fees |
| Carrier fees (US) | Included in SMS rate | $0.003-0.006/msg extra |
| WhatsApp messages | Unlimited on paid plans | $0.005 per message |
| 100K WhatsApp messages | $20/mo (Pro plan) | $500/mo |
| US Phone Number | Included in Pro, more from $1.25/mo | $1.15/mo |
| AI agents (text) | Included, bring your key with no markup | Not available |
| Voice AI agents | From $0.07/min all-in | Assemble STT + LLM + TTS yourself |
See how much you'd save
Real costs at different volumes. WhatsApp messages are unlimited on paid Zavu plans.
Save 79% with Zavu ($412/mo)
Cost breakdown by channel
| Channel | Volume | Zavu | Twilio |
|---|---|---|---|
| 60,000 | Included | $300 | |
| SMS | 20,000 | $80 | $220 |
| 20,000 | $8 | $0 | |
| Zavu Pro subscription | $20 | — | |
Based on US rates. SMS: Zavu $0.004/msg, Twilio $0.011/msg. WhatsApp messages included in Zavu plan. Twilio charges $0.005/msg. Zavu tier subscription included in total.
Why Builders Choose Zavu
Ship in Minutes, Not Weeks
npm install, grab your API key, send your first message. Most founders integrate in under an hour. No sales calls required.
One API, All Channels
SMS, WhatsApp, Email, Telegram, Instagram, Messenger and Voice. One import, one dashboard. No juggling Twilio + SendGrid + separate WhatsApp providers.
AI Agents Out of the Box
Text agents on your channels and voice agents that answer the phone, in minutes. RAG knowledge base, flow builder, tool calling. No infra to manage.
Start Free, Scale When Ready
Free tier with 2,000 messages, two channel connections and $2 of credit. Upgrade to Pro at $20/mo with $20 of monthly credit and a US number included.
Know Your Costs Before You Ship
Flat pricing, no carrier fee surprises. Your startup's burn rate stays predictable as you scale from 100 to 100K users.
Built for Startups, Not Committees
Talk to engineers on Slack, not enterprise ticket queues. We ship features weekly, not quarterly.
Trusted by growing teams
Real results from real customers
“With Zavu's WhatsApp API we now reach 90% of our customers on the first attempt. Before, half our messages were lost to undelivered SMS.”
Alberto Valladares
CEO, Renee.cl
“Zavu unified WhatsApp, SMS, and AI agents into a single workflow. Response time dropped from hours to seconds.”
Ariel Vaisman
CEO, RendaloMAQ
Migration FAQ
Ready to Switch?
Start sending across seven channels in minutes. Free to start, migrate at your own pace.