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$19.95
$1
$120
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Twilio is a cloud communications platform that provides APIs for sending SMS, making voice calls, video conferencing, WhatsApp messaging, email, and phone verification.
Twilio SMS starts at $0.0083 per message to send or receive. Prices vary by country and carrier. You also need a Twilio phone number which costs around $1/month.
Twilio Verify is a phone verification API for implementing two-factor authentication. It costs $0.05 per successful verification via SMS, voice, or email.
Twilio Flex is a programmable cloud contact center platform. Pricing is $1 per active user hour or $150 per named user per month. New accounts get 5,000 free hours.
Source: twilio.com