SMSFlow
Still paying £0.035–£0.045 per SMS?

Send SMS for £17
Straight From Your Own Android Phone

Stop subsidising TextLocal's margins. With SMSFlow, your SIM card is the gateway — you pay only for the plan, not per message. And your customer data stays on your device, making GDPR compliance genuinely simple.

Real cost comparison: 10,000 SMS/month for 12 months

Twilio

...

/mo

TextLocal

...

/mo

SMS Flow

£17

/mo

First-year cost:

Twilio: ...TextLocal: ...SMSFlow: £204

* SMSFlow uses your Android phone as the SMS gateway. Cost per message is zero because SMS are sent through your own SIM card — not a third-party cloud API. Your customer data never passes through external servers.

3.200+

Active UK businesses

98%

SMS open rate

R$ 0,00

Cost per SMS

4.8/5

Average customer rating

How It Works

1. Install the App

Download the SMSFlow app on your Android phone. Your device becomes a private SMS gateway — sending from your own SIM, with no data leaving your infrastructure.

2. Connect via API or Plugin

Integrate with your existing systems: WooCommerce, Shopify, HubSpot, n8n, Make, Zapier or any platform that supports webhooks or REST APIs.

3. Send SMS

Messages go directly from your SIM card to your customers. No intermediaries. No cost per message. No third-party processors touching your data.

Clear, Honest Pricing

Full web dashboard, REST API, SMS templates, bulk campaigns and reporting included. From £17/mo with a 7-day free trial.

£17/mo

Starter

  • Unlimited SMS
  • Full web dashboard
  • REST API + Webhooks
  • SMS Templates
Try free for 7 days
POPULAR
£67/mo

Pro

  • Unlimited SMS
  • Full web dashboard
  • REST API + Webhooks
  • SMS Templates
  • Bulk campaigns
Try free for 7 days
£169/mo

Business

  • Unlimited SMS
  • Full web dashboard
  • REST API + Webhooks
  • SMS Templates
  • Bulk campaigns
  • Unlimited devices
Try free for 7 days
Prefer a one-time payment?

SMSFlow LifeTime — Permanent Access

Batch 1: only 100 spots at £147 — a single payment, never a subscription. No monthly fees. Ever.

Get LifeTime Access for £147

How Does SMSFlow Compare?

See what the major UK SMS platforms actually charge — and understand why SMSFlow is fundamentally different.

PlatformCost/SMS10k SMS/moModelYour SIMOne-time
SMSFlow
R$ 0,00R$ 0/mês *Android Gateway
Twilio(EUA)~R$ 0,35R$ 3.500/mêsCloud API
Zenvia(BR)R$ 0,07-0,10R$ 700/mêsCloud API
Comtele(BR)R$ 0,07-0,10R$ 700/mêsCloud API
SMSDev(BR)R$ 0,07-0,11R$ 700/mêsCloud API
TextBee(Open Source)R$ 0,00~R$ 40/mêsAndroid Gateway
RD Station(Marketing)Incluso*R$ 389+/mêsSaaS Platform

* SMSFlow: after paying your plan subscription (from £17/mo), cost per SMS is £0.00 — messages are sent via your own SIM card. Customer data never passes through third-party servers. ICO compliant by design.

Competitor pricing based on publicly available data, February 2026.

Your annual savings vs Twilio

R$ 41.900

per year (at 10k SMS/month)

Your annual savings vs Zenvia

R$ 8.300

per year (at 10k SMS/month)

Your annual savings vs TextBee

R$ 380

per year (at 10k SMS/month)

What UK Businesses Say About SMSFlow

Over 5,000 businesses have already cut their SMS spend to zero per message.

"We were paying TextLocal around £210 a month just to confirm patient appointments. Since switching to SMSFlow, we pay £47/mo for the plan and nothing per SMS. The cost-saving was instant — and our ICO compliance officer was particularly pleased that patient data no longer passes through a US-based server."

DR

Dr. James W.

Dental Practice — London, England

Featured

"Integrated SMSFlow with our WooCommerce store via Zapier in under half an hour. Abandoned basket SMS now go out within 15 minutes of a customer leaving. Our recovery rate jumped considerably and the cost per recovered order is essentially nothing. Brilliant platform."

CF

Sarah M.

Online Retailer — Manchester

"Running a personal training studio, no-shows were genuinely costing me money. We set up automated appointment reminder SMS through SMSFlow and no-shows dropped by around 55% within the first month. The monthly plan paid for itself with a single retained client. Couldn't recommend it enough."

TP

William P.

Personal Training Studio — Birmingham

Connects With Everything Your Business Already Uses

Native plugins for WooCommerce, Shopify, Magento and WordPress. Ready-made connections for HubSpot, Zapier, Make and n8n. REST API for bespoke integrations. Up and running in minutes.

Frequently Asked Questions

Straightforward answers about how SMSFlow works for UK businesses.

How does SMSFlow send SMS without charging per message?+
SMSFlow uses your own Android phone as an SMS gateway. Messages are sent through your SIM card, not a third-party cloud API. You pay only for the plan subscription (from {price}/mo) — SMS go out at zero cost per message.
Do I need a separate SIM card or a dedicated phone?+
Not necessarily. You can use any compatible Android device with any active SIM. For professional-scale use, we recommend a dedicated handset on an affordable SIM-only contract — a small fixed cost that eliminates per-message charges entirely.
Does the app need to run 24 hours a day?+
The app runs in the background and continues sending SMS even with the screen locked, around the clock. No need to babysit your device.
Is SMSFlow GDPR compliant?+
Yes — and unlike traditional cloud SMS platforms, compliance is built into the architecture. SMS are sent from your own SIM card, meaning your customer data never passes through third-party processors or leaves your infrastructure. You remain the sole data controller, fully aligned with UK GDPR and ICO guidance.
Does SMSFlow comply with Ofcom regulations?+
SMSFlow provides the sending infrastructure. Compliance with Ofcom guidelines, PECR (Privacy and Electronic Communications Regulations) and UK GDPR for your specific campaigns is the responsibility of the account holder. We provide comprehensive guidance in our GDPR & SMS compliance centre.
What integrations are available?+
SMSFlow has native plugins for WordPress, WooCommerce, Shopify and Magento. Direct connections for Zapier, Make and n8n. HubSpot integration and a fully documented REST API for custom builds.

Still have a question? Speak with us →

Master SMS Marketing for Your UK Business

In-depth guides, a comprehensive glossary and real-world use cases to help you get the most from the SMS channel.

Total Data Privacy

Your SMS go directly from your SIM card. Customer data never passes through our servers or any third-party processor — GDPR compliant by design, not by policy.

24/7 Sending

The app runs continuously in the background on all plans. SMS continue sending even with your screen locked.

Delivered in Seconds

SMS dispatched directly from your SIM in seconds. No cloud queues, no third-party API latency.

Transparent Pricing

Plans from £17/mo. Or lock in permanent access with a one-time payment of £147.

5,000+ UK businesses already sending at £0 per SMS. Join them.

Ready to Stop Paying Per SMS?

Start your 7-day free trial today. No credit card required. All Pro plan features included from the first day.

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