Best Transactional SMS Software in 2026 · page 2

Alibaba Cloud Short Message Service

Android app and web access; API sends verification, account, order and promotional texts to over 200 regions.

MSG91

Android app and SMS API handle business texts, including order updates, reminders, and sign-in codes.

Tencent Cloud SMS

TrueDialog

Android app and API support enterprise customer messaging, from mass sends to two-way conversations.

BulkGate

BulkGate is an SMS gateway for businesses that send and receive messages for campaigns, notifications, and verification codes.

Clickatell SMS API

Web and API tools include inbound webhooks and support for SMS conversations in both directions.

CM.com Business Messaging API

Infobip SMS API

Infobip SMS API lets businesses add SMS sending and receiving to existing systems.

SMS.to

smsmode RCS API

smsmode RCS API is a web and API service for creating rich RCS conversations.

Textbelt

Textbelt is an SMS API for developers who want software to send text messages.

Twilio Programmable Messaging

Twilio Programmable Messaging sends and receives SMS, MMS, RCS, and WhatsApp messages through one API.

Esendex

Roezan SMS API

Sinch SMS API

Sinch SMS API lets applications send and receive SMS messages worldwide.

SMSAPI

Android app and web service for SMS API access.

Twilio Verify

2Factor.in OTP API

Android app and HTTP APIs send SMS OTPs for phone verification, plus transactional and promotional bulk SMS.

Conexteo

Plivo Verify

Plivo Verify is an API for sending and validating one-time passwords used in two-factor authentication.

Prelude Transactional SMS API

Routee SMS API

Web API handles transactional and promotional SMS, inbound replies, delivery tracking, and message cost estimates.

Mitto

MessageFlow SMS API

QuickAuth Transactional SMS API

Android app and API send verification codes through WhatsApp, with SMS as an automatic backup.