WhatsApp and SMS

WhatsApp Cloud API vs Twilio vs Zenvia

WhatsApp Cloud API, Twilio, Zenvia side by side: price, free tier, who each one fits and when to skip it.

Item	WhatsApp Cloud API	Twilio	Zenvia
What it does	Meta's own API for sending and receiving WhatsApp messages from your app, hosted by Meta and billed per delivered message.	Developer API for SMS, WhatsApp, voice and email, with SDKs in every major language.	Brazilian customer messaging platform for SMS, official WhatsApp, RCS and email, with prepaid message packages in reais.
Best for	A SaaS that sends login codes and billing reminders on WhatsApp and wants the lowest official rate with no middleman fee.	A SaaS selling in several countries that wants SMS and official WhatsApp behind one API and one bill.	A B2B SaaS in Brazil that wants SMS and official WhatsApp billed in reais, with local support and a CNPJ-based contract.
Skip it if	You need to launch this week: every outbound template has to be approved by Meta and the business needs a verified Meta Business account.	Almost all your volume is WhatsApp: Twilio adds $0.005 to every message, sent or received, on top of Meta's rate.	You only send a few hundred WhatsApp alerts: R$0.47 to R$0.55 per template plus a R$649 activation fee costs far more than going straight to Meta.
Setup	Needs a developer. A first test message in an afternoon; plan 1 to 2 weeks for business verification and approved templates before real customers.	Needs a developer. First test message in an hour; plan 1 to 2 weeks for Meta approval on WhatsApp and up to 10 weeks if you want a US short code.	Needs a developer. SMS in a day or two; WhatsApp depends on Meta verifying the business and approving templates, so plan 1 to 2 weeks.
Price	Per delivered message to US numbers: $0.0034 for utility, authentication and service, $0.025 for marketing.	WhatsApp: Meta's rate + $0.005 per message sent or received. SMS to the US: $0.0083 per segment plus carrier fees.	Packages from R$100/month: SMS R$0.10, WhatsApp template R$0.55; software plans from R$600/month.
What it costs in practice	SaaS with 500 US customers: 4 billing reminders each is 2,000 utility messages × $0.0034 = $6.80. Plus 1,500 support replies: 1,000 free, 500 × $0.0034 = $1.70. About $8.50/month, estimated.	SaaS sending 2,000 WhatsApp reminders and getting 500 replies: 2,500 × $0.005 = $12.50 to Twilio, plus Meta's rate on the 2,000 sent. Add 300 SMS codes × $0.0599 ≈ $18. About $30/month plus Meta, estimated.	SaaS sending 2,000 WhatsApp reminders: the R$1,000 package covers 2,041 templates at R$0.49, so R$1,000/month plus R$649 once to activate WhatsApp. Straight from Meta the same reminders cost about R$70. Estimated.
Free plan	No monthly fee; 1,000 free service messages per number each month, then you pay per message.	Free trial with no credit card; after that you pay per message.	The Starter software plan is free for 1 user, but sending needs a message package from R$100/month.
Price per message	$0.0034 (utility) to $0.025 (marketing), US	Meta + $0.005 (WhatsApp); $0.0083 US SMS	WhatsApp R$0.55; SMS R$0.10 (R$100 pack)
Official WhatsApp API	Yes, it's Meta's own	Yes, official Meta partner	Yes, official Meta partner
Channels	WhatsApp only	SMS, WhatsApp, voice, email	SMS, WhatsApp, RCS, email, Instagram
Open source	No: no	No: no	No: no
Before you build	A new business can only start conversations with 250 different people in 24 hours. It rises to 2,000 only after Meta verifies your business or you send 2,000 good template messages in 30 days. Outside the 24-hour window after the customer's last message you can only send pre-approved templates. Free-form text is blocked. If Meta decides your 'utility' template is really marketing, it switches the category with one day's notice and you start paying the marketing rate, about 7 times more in the US. Since October 1, 2026, support replies beyond the 1,000 free per month and utility messages sent inside the 24-hour window are charged. Rates follow the recipient's country code, not where your company is: a marketing message costs $0.025 to a US number and $0.1365 to a German one.	Twilio's $0.005 fee applies to every WhatsApp message, received ones included, on top of Meta's rate. Failed messages cost $0.001 each. In the US, a regular long code can't send automated texts from your app until your brand and campaign pass A2P 10DLC registration, and carriers can charge fees for non-compliant traffic. Some countries swap your sender for a random number when you text from abroad, so customers don't recognize who wrote. Check each country's rules before you launch there. On the trial you can't create your own WhatsApp templates and can only message verified numbers, so you can't test with real customers.	Turning on WhatsApp or RCS costs R$649 in the first month on the Starter and Specialist plans, even though the Starter plan itself is free. A WhatsApp template costs R$0.47 to R$0.55 depending on the package, while Meta charges R$0.035 for a utility message sent directly. There's no lock-in, but you must cancel at least 20 days before your next invoice is issued, or you pay one more month. Even through Zenvia, a new business can only start WhatsApp conversations with 250 people a day until Meta verifies it.
Price checked	Checked on Oct 28, 2026 · official pricing	Checked on Oct 28, 2026 · official pricing	Checked on Oct 28, 2026 · official pricing

Prices are read from each official pricing page on the date shown and can change. Always confirm before signing up.

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