Healthcare & Clinics
Delivers one-time passwords and login codes over WhatsApp for sign-ups, logins, and transaction verification. Built for clinics, dentists & medical practices.
Clinics use WhatsApp to book appointments, send reminders, and answer common patient questions without tying up reception staff.
Delivers one-time passwords and login codes over WhatsApp for sign-ups, logins, and transaction verification. Gives users a faster, higher-engagement alternative to SMS codes on a channel they already trust.
Your app or store requests an OTP when a user signs up, logs in, or verifies a transaction.
Defuser delivers the code using an Authentication-category template to the user's verified number.
The user enters the code and your system confirms it, completing the secure action.
Many businesses see better delivery and read rates on WhatsApp because messages arrive in an app users actively check. Authentication templates are purpose-built by Meta for sending codes.
OTPs use WhatsApp's Authentication conversation category. Defuser's transparent calculator shows the per-conversation fee for each of 30+ countries so you can budget accurately.
Defuser runs on the official Meta-Verified WhatsApp Business API, where messages are end-to-end encrypted in transit. You control what information is sent and can keep automation to scheduling, reminders, and general info while sensitive details are handled by your staff directly.
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