Twilio dominates for developers and enterprises requiring API-first flexibility and global reach. Mailchimp SMS suits small to mid-market businesses seeking an integrated email plus SMS solution. Braze excels for large enterprises needing sophisticated customer engagement and AI-driven segmentation across channels.
RANKENTRYSCORETRENDFROM
1TwilioTwilio powers SMS for over 10 million developers globally and handles billions of messages annually.95.0NEW$0.0075 per SMS (pay-as-you-go) 2BrazeBraze processes over 40 billion messages per month for global brands.92.7NEWCustom 3MailchimpMailchimp serves over 12 million customers and processes billions of messages annually.90.3NEW£13 per month (SMS add-on) 4SinchSinch connects with over 200 mobile network operators globally for reliable SMS delivery.88.0NEWCustom (volume-based) 5SegmentSegment processes over 15 billion data points per day from thousands of sources.85.7NEWCustom 6KlaviyoKlaviyo powers SMS and email for over 300,000 e-commerce businesses globally.83.3NEW£25 per month (or pay-as-you-go from £0.01 per SMS) 7BandwidthBandwidth operates as a direct carrier, not relying on wholesale partners for delivery.81.0NEW$0.0075 per SMS 8HubSpotHubSpot serves over 200,000 customers across 180+ countries.78.7NEW£45 per month (Professional tier with SMS) 9TelnyxTelnyx owns and operates its own network infrastructure globally.76.3NEW$0.005 per SMS 10OpenMarketOpenMarket delivers over 1 billion SMS messages per month globally.74.0NEWCustom The ranking, in detail
01
Communications platform as a service for developers
Twilio is a cloud platform enabling programmable voice, SMS, video, and messaging via APIs. It offers enterprise-grade infrastructure with global coverage, SDKs for multiple languages, and detailed analytics.
From $0.0075 per SMS (pay-as-you-go)Best for Developers and enterprises requiring custom, programmable messaging solutions
95.0
02
Customer engagement platform with AI-driven personalisation
Braze is a comprehensive customer engagement platform combining SMS, email, push notifications, and in-app messaging. It uses machine learning to optimise send times and content for maximum engagement.
From CustomBest for Large enterprises seeking sophisticated omnichannel customer engagement and AI-powered insights
92.7
03
All-in-one marketing platform with SMS, email, and automation
Mailchimp is an integrated marketing automation platform offering SMS, email campaigns, landing pages, and e-commerce tools. It combines ease of use with robust features for small to mid-market businesses.
From £13 per month (SMS add-on)Best for Small to mid-market businesses seeking integrated email and SMS marketing in one platform
90.3
04
Cloud communications platform for messaging and voice
Sinch provides a cloud-based communications platform with SMS, MMS, email, voice, and video capabilities. It serves both enterprises and developers with a focus on reliability and global connectivity.
From Custom (volume-based)Best for Enterprises and service providers requiring high-volume, reliable global SMS delivery
88.0
05
Customer data platform enabling unified SMS campaigns
Segment is a customer data platform that unifies data from multiple sources and integrates with SMS tools. It enables sophisticated audience segmentation and personalised SMS campaigns through a single dashboard.
From CustomBest for Data-driven enterprises needing unified customer profiles for targeted SMS campaigns
85.7
06
E-commerce marketing automation with SMS and email
Klaviyo is a marketing automation platform designed for e-commerce, offering SMS, email, and push notifications. It provides pre-built flows, segmentation, and analytics specifically tailored for online retailers.
From £25 per month (or pay-as-you-go from £0.01 per SMS)Best for E-commerce businesses seeking integrated SMS and email marketing with pre-built retail flows
83.3
07
Communications API platform with voice, SMS, and emergency services
Bandwidth is a cloud communications provider offering programmable SMS, voice, and 911 services via APIs. It focuses on developers and enterprises requiring reliable, carrier-grade infrastructure.
From $0.0075 per SMSBest for Developers and enterprises requiring programmable SMS with carrier-grade reliability
81.0
08
CRM platform with integrated SMS and marketing automation
HubSpot is a comprehensive CRM platform combining SMS, email, landing pages, and sales tools. It emphasises ease of use and inbound marketing methodology for growing businesses.
From £45 per month (Professional tier with SMS)Best for Growing businesses seeking an integrated CRM with SMS, email, and sales tools
78.7
09
Communications API platform with messaging and voice
Telnyx is an API-first communications platform offering programmable SMS, MMS, voice, and messaging. It provides direct carrier partnerships with transparent pricing and developer-friendly SDKs.
From $0.005 per SMSBest for Developers and mid-market businesses requiring cost-effective, programmable SMS solutions
76.3
10
Enterprise SMS and omnichannel messaging platform
OpenMarket is an enterprise messaging platform offering SMS, MMS, and omnichannel capabilities. It serves large organisations requiring high-volume delivery, compliance, and advanced routing.
From CustomBest for Large enterprises requiring high-volume SMS delivery with strict compliance and regulatory requirements
74.0
Frequently asked questions
What is the typical cost per SMS message?
Typical costs range from £0.003 to £0.01 per SMS depending on the platform and volume. Pay-as-you-go pricing generally costs more per message than committed volume plans. Enterprise platforms often offer custom pricing negotiated based on monthly volume commitments.
Which platform is best for small businesses with limited budget?
Mailchimp and Klaviyo offer affordable entry points (from £13-25 per month) with integrated email and SMS tools suitable for small businesses. For minimal volume, Telnyx and Bandwidth offer competitive per-message pricing at £0.005 without monthly minimums.
Do SMS marketing platforms comply with regulations like GDPR and TCPA?
Yes, all major platforms include compliance tools for GDPR, CCPA, TCPA, and local regulations. Most provide consent management, opt-out handling, and audit trails. However, businesses remain responsible for obtaining explicit consent before sending marketing SMS messages.