The Modern
Twilio Alternative
One API for SMS, WhatsApp, and Email. Simpler pricing without carrier fee surprises. AI agents included. See why developers are making the switch.
No credit card required. First US phone number is free.
Feature Comparison
Everything you need for multi-channel messaging, plus AI agents Twilio doesn't offer.
| Feature | Zavu | Twilio |
|---|---|---|
| Free first US number | ||
| SMS API | ||
| WhatsApp Business API | ||
| Email API | SendGrid | |
| Voice API (TTS) | ||
| Built-in AI Agents | ||
| Knowledge Base (RAG) | ||
| Visual Flow Builder | ||
| Per-contact pricing | ||
| No carrier fees |
Pricing Comparison
Transparent pricing. No carrier fee surprises on your bill.
| Item | Zavu | Twilio |
|---|---|---|
| SMS to US (per message) | From $0.0044 | $0.0079 + carrier fees |
| Carrier fees (US) | Included in SMS rate | $0.003-0.006/msg extra |
| WhatsApp messages | Included in plan | $0.005 per message |
| 100K WhatsApp messages | $25/mo (Hobby plan) | $500/mo |
| US Phone Number | 1 Free, then $1.15/mo | $1.15/mo |
| AI Agent (GPT-4o-mini) | Included | Not available |
See how much you'd save
Real costs at different volumes. WhatsApp messages are included in your Zavu plan.
Save 77% with Zavu ($401/mo)
Cost breakdown by channel
| Channel | Volume | Zavu | Twilio |
|---|---|---|---|
| 60,000 | Included | $300 | |
| SMS | 20,000 | $88 | $220 |
| 20,000 | $6 | $0 | |
| Zavu Hobby subscription | $25 | — | |
Based on US rates. SMS: Zavu $0.0044/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 — one import, one dashboard. No juggling Twilio + SendGrid + separate WhatsApp providers.
AI Agents Out of the Box
Add a GPT-powered agent to your WhatsApp in 5 minutes. RAG knowledge base, flow builder, tool calling — no infra to manage.
Start Free, Scale When Ready
Free tier with 2K messages and a US number. Upgrade to $25/mo when you grow. No credit card to start.
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
“We consolidated SMS, WhatsApp, and Email into one API. AI routing saved us 60% vs our previous provider stack.”
Nelyoly Alizo
CMO, Nely.ai
“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 SMS, WhatsApp, and Email in minutes. Free to start, migrate at your own pace.