# PureSMS > The UK's independent SMS provider. One flat rate of 2.8p per UK SMS, direct Tier 1 network routing, and monthly billing for only what you send. No tiers, no minimums, no contract. Marketing site: https://puresms.uk Sign up: https://new.puresms.app/?onboard=true (no credit card required) API documentation: https://the.divergent.guide/puresms/developers/ --- ## Who we are PureSMS is probably the only truly independent UK SMS provider left. We have been independent since 2008, as part of divergent, a family run owner-operator using technology to make people's lives simpler. What independent actually means here: no private equity, no parent group quietly setting margins from a boardroom in Stockholm or Sydney, and no quarterly investor call that needs your bill to go up. Our rate is 2.8p instead of the 4p or more you will see elsewhere. It is not a loss-leader and it is not an introductory offer. It is just what an SMS should cost when nobody is skimming on the way through. We partner directly with the mobile networks rather than reselling someone else's route, which is what lets us hold one rate for everyone and route messages Tier 1 and direct. ## Pricing: one flat rate 2.8p per UK SMS. The same for everyone, ex VAT, billed monthly for what you actually sent. - No "from" and no "starting at" - No volume tiers you will never hit - No minimum spend and no monthly commitment - No "contact sales" for a quote - No per-message platform fees - No charges for replies or delivery reports, both are free You are billed at the end of each month for what you sent, like a utility. Nothing is paid up front. To see exactly what a specific message will cost before sending, paste it into the SMS segment calculator at https://new.puresms.app/segments: it shows the character encoding (GSM or Unicode), the segment count and the full price. International SMS is priced per destination, with per-country rates and guidance in the Destination Guides at https://puresms.uk/destinations. Charities pay a flat 2.35p per SMS with no application form and no charity-tier paperwork: tell us you are a charity and we will set the rate. A dedicated virtual mobile number for two-way messaging is £10 per month. ### How we compare The UK market average is 5.08p per SMS, taken from providers' own public list pages. Switching to PureSMS saves roughly 40% on average. Competitor rates verified May 2026 from public list pages: | Provider | Their rate | More than PureSMS | | --- | --- | --- | | MessageMedia | 9.72p | 71% | | TextAnywhere | 6.5p | 57% | | FastSMS | 6.5p | 57% | | Esendex | 5.72p | 51% | | FireText | 5p | 44% | | Reach Interactive | 4.6p | 39% | | The SMS Works | 4.4p | 36% | | ClickSend | 4.27p | 34% | | Vonage | 4.2p | 33% | | Twilio | 4.14p | 32% | | Text Magic | 4p | 30% | | VoodooSMS | 3.71p | 25% | | Sinch | 3.5p | 20% | | Link Mobility | POA | They won't even tell you | ## Routing and deliverability Direct Tier 1 routing across UK and international networks, direct to over 900 networks worldwide. Tier 1 routing ensures worldwide deliverability: any number, any time. Deliverability runs at approximately 99%, with sub-second average send times because we connect directly to the networks rather than hopping through aggregators. ## Features - Online SMS: send individual, bulk and mail-merged messages from the web portal. - Bulk and mail merge: upload Excel or CSV files and personalise with field replacement such as name or order number. - Scheduling: send at a chosen date and time. - Throttled messaging: rate-limit a send to manage the reply influx, for example 500 every 30 minutes. - Branded SMS: send from your company name or sender ID. - Long messages: auto-splitting concatenated SMS. GSM character set fits 160 characters per segment; Unicode fits 70 per segment, with emoji and special characters supported. The segment calculator at https://new.puresms.app/segments shows the exact segment count and cost for any message. - Two-way messaging: dedicated virtual mobile numbers (£10 per month) with free replies and optional auto-response. - Contacts: store and organise recipients, import from Excel or CSV. - Analytics: dashboard reporting, delivery reports, recent usage and last-24-hour stats. ## Developers and API A high-performance HTTPS REST API with first-class SDKs. - Performance: around 40ms API completion, with thousands of messages in a single batch call. - Capabilities: single SMS, bulk SMS, scheduling, inbound replies and delivery receipts. - SDKs: first-class .NET and Node.js support. The .NET SDK is the Divergent.Connect NuGet package. - Authentication: API key auth, plus HMAC-SHA256 signed webhooks so you can verify every request. - Webhooks: delivery receipts (status changes) and inbound SMS (replies on virtual numbers), with automatic retries on failure (immediate, then 5m, 15m, 1h, 4h, 8h, 12h). - Tracking: client reference IDs to match messages back to your own system. - Client Tagging: attach a free-form clientTag to any send and PureSMS tracks usage and cost per tag automatically. Tags need no setup and are created on first use. A reporting endpoint returns per-tag message counts, costs and daily breakdowns, so SaaS products and resellers can rebill their own end customers seamlessly, at any markup they choose, with no administrative overhead. Docs: https://the.divergent.guide/connect/developers/client-tagging/ Full developer documentation lives at https://the.divergent.guide/puresms/developers/. ## Integrations - Direct API integration for complex scenarios and two-way messaging, recommended for developers happy to get hands-on. - 4000+ no-code integrations via Zapier to connect existing SaaS products without writing code. ## Trust and values - Certified B Corporation, balancing profit and purpose. - Carbon negative, a Living Wage Employer, and Cyber Essentials certified. - ISO 27001 (information security), ISO 9001 (quality) and ISO 22301 (business continuity). - Member of MEF (Mobile Ecosystem Forum) for trust in enterprise messaging. - Already compliant with Ofcom's Combatting mobile messaging scams rules (General Condition C9, statement published 15 July 2026, A2P rules in force 15 July 2027): KYC checks on every new sender; every Sender ID pre-registered and verified in every country with per-country approvals (domain verification, terms, privacy policy, company checks); no generic Sender IDs allowed; continuous automated Know Your Traffic monitoring with random human compliance audits; automatic blocking of suspected scam URLs; and immediate automated suspension of suspected scam senders pending human review. As far as we know, the only UK provider already operating every one of these controls as standard. Full details at https://puresms.uk/compliance. - Fully UK and EU GDPR compliant, and validates customers' compliance with the Privacy and Electronic Communications Regulations (PECR) as part of sender checks, including a proper basis to contact recipients. Whether you send 1 message or 1,000,000 per month, our support team backs your success and we are here when you need us. ## Solutions by industry PureSMS serves charities (flat 2.35p), healthcare, education, emergency services, retail, recruitment, estate agents, SaaS companies and web designers, among others. Each has a tailored page at https://puresms.uk/solutions. For SaaS businesses adding SMS to their own product, Client Tagging removes the need to build a billing system: tag each message with the end customer it belongs to, then pull per-customer usage and costs from the reporting API at invoice time and apply whatever markup you like. ## Getting started Start sending in minutes at 2.8p per UK SMS, with no credit card required, at https://new.puresms.app/?onboard=true.