TwilioHandles over 1.5 trillion communications annually across 190+ countries with 99.95% uptime SLA95.0NEW$0.0075 per SMS
KlaviyoEnables merchants to send personalised SMS campaigns based on customer behaviour and purchase history with detailed ROI tracking92.7NEW$20 per month
SalesmsgIntegrates natively with HubSpot, Salesforce and Pipedrive with message history and lead tracking embedded in CRM records90.3NEW$25 per user per month
BrazePowers real-time messaging for hundreds of millions of users globally with machine learning optimisation across channels88.0NEWCustom
MessagebirdReaches customers via 50+ channels including SMS, WhatsApp, Telegram and email from one platform85.7NEW£0.04 per SMS
SimpleTextingEnables businesses to send automated SMS campaigns with keyword-triggered responses without coding or technical expertise83.3NEW$20 per month
SMSBumpShopify-native platform with direct access to customer, order and inventory data for highly targeted campaigns81.0NEW$15 per month
BandwidthDirectly owns and operates telecom infrastructure across North America, offering direct carrier control and reliability78.7NEW$0.005 per SMS
AttentivePowers mobile marketing for hundreds of leading retail brands including Bed Bath & Beyond and YETI with real-time personalisation76.3NEWCustom
AirtableOver 500,000 active users leverage Airtable workflows with Zapier integrations to automate SMS and communications74.0NEW$20 per month
Twilio provides programmable SMS, voice and messaging APIs enabling developers to build custom communications applications at global scale. Used by millions of businesses for marketing, customer service and verification.
Klaviyo combines email, SMS and push notifications with advanced segmentation and automation designed specifically for ecommerce and DTC brands. Features real-time analytics and customer data platform functionality.
Salesmsg delivers two-way SMS conversations and voice calling integrated directly into popular CRM systems. Enables sales and customer service teams to engage prospects and customers via mobile without switching applications.
Braze delivers cross-channel customer engagement combining SMS, email, push notifications and in-app messaging with AI-powered journey orchestration. Serves large enterprises needing sophisticated marketing automation.
Messagebird provides SMS, WhatsApp, email and voice communications through a single platform. Offers both API and visual no-code interfaces for campaigns and customer engagement at global scale.
SimpleTexting provides straightforward SMS marketing, two-way messaging and customer engagement tools designed for accessibility and ease of use. Focuses on helping non-technical users launch campaigns quickly.
SMSBump is a Shopify-native SMS marketing app delivering automated campaigns based on customer behaviour, cart abandonment and purchase history. Focuses entirely on ecommerce and Shopify ecosystem.
Bandwidth provides carrier-grade SMS APIs and voice communications infrastructure. Serves developers and enterprises requiring reliable, high-volume messaging with direct access to carrier networks.
Attentive delivers SMS and email marketing focused on mobile-first retail experiences. Combines messaging with visual editor, advanced personalisation and analytics tailored for retail and ecommerce brands.
While primarily a spreadsheet database platform, Airtable integrates with SMS services like Zapier to enable non-technical users to automate SMS campaigns. Popular with teams managing customer data and workflows.
SMS marketing sends promotional messages to customers who have opted in, usually in bulk campaigns. Transactional SMS delivers time-sensitive alerts like password resets or order confirmations. Most platforms support both, but transactional SMS has stricter regulations and different compliance requirements.
SMS typically costs £0.01 to £0.10 per message depending on volume and provider, making it considerably more expensive than email which costs pence per thousand. However, SMS generates higher engagement rates (20-40% open rates versus 15-25% for email), often justifying the premium.
SMS marketing is heavily regulated under GDPR in the EU, TCPA in the US and similar laws globally. All messages require prior explicit opt-in consent, must include a way to unsubscribe, and cannot be sent outside business hours in many jurisdictions. Reputable platforms handle compliance management.
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