SMS knowledge you won't find anywhere else.
Case studies, gateway comparisons, hard 2FA guide. No clickbait.
SMS API providers in Poland compared (2026): SMSAPI, SerwerSMS, Twilio and more
An honest comparison of SMS API providers in Poland 2026: SENDLY, SMSAPI, SerwerSMS, Twilio, Infobip, Vonage, mProfi and Bird. Billing models, sender ID, integrations – and which API to pick for notifications, 2FA codes and bulk messaging.
SMS Marketing During Major Sporting Events: How E-commerce Wins the World Cup
The World Cup final is the peak of mobile attention and buying emotion. We show how e-commerce and local businesses can seize the moment with a well-aimed text – and how to fire it off technically through the SENDLY SMS API.
Urgent WordPress 7.0.2 update (wp2shell). What does it mean if you send SMS via an API?
The critical wp2shell vulnerability lets attackers take over WordPress without logging in. If you run your own integration on it that sends SMS through the SENDLY API, your token and your customers' numbers are at stake. We explain what to do – and preview the official WooCommerce plugin.
3G shutdown in Poland and SMS: keeping notifications and your number alive
Carriers are switching off 3G and refarming the spectrum for 4G/5G. See what it means for SMS gateways, terminals and M2M systems – and why SMS stays the safest channel.
How to send your first SMS via API in 5 minutes – the complete guide
Bearer Token, one endpoint, JSON. A hands-on guide with ready code in curl, Node.js, Python and PHP – from sign-up through webhooks and error handling to a production rollout.
Implementing SMS 2FA: the complete security guide for businesses
One-time codes (OTP) are the last line of login defense. How to implement SMS 2FA the right way: architecture, rate-limiting, abuse protection, PSD2 compliance and deliverability.
Bulk SMS: how to build a campaign that converts
From list hygiene and GDPR consent, through segmentation, personalization and A/B tests, to measuring ROI. The complete bulk SMS guide for marketing and communications.
SMS marketing and GDPR: consent, opt-out and campaigns without fines
How to run SMS marketing compliant with GDPR and telecom law: the legal basis for consent, collecting and documenting it correctly, STOP handling, Sender ID and data retention.
SMS notifications in e-commerce: fewer abandoned carts, more returns
Order status, confirmations, delivery alerts and cart recovery. How SMS lifts the shopping experience, cuts support costs and grows store revenue – with concrete scenarios.
How much does an SMS cost in Poland in 2026? A full gateway price comparison
Subscription vs pay-as-you-go, volume tiers, hidden fees, Sender ID and report costs. We break down the cost of a business SMS and show how to calculate a budget that holds up.
SMS vs email open rate: why 98% beats 20% and what follows
Hard numbers on channel effectiveness. Where the open-rate gap comes from, when SMS beats email and push, how to count the cost of effective reach, and how to combine channels.
Sender ID: how to set the SMS sender name and why it pays off
An alphanumeric sender field instead of a number raises trust, open rate and security. How to configure it, the limits, how to pass verification and when to choose a dedicated number.
SMS over VoIP: send and receive messages in your PBX
The SIP MESSAGE protocol lets you handle SMS from Zoiper, 3CX or FreePBX – one number for calls and messages. How it works, what it integrates with, who benefits and how rollout looks.
SMS integrations: WooCommerce, Shopify, Zapier and CRM without code
A tour of ready SMS integrations with e-commerce, CRM, ERP systems and automation tools. How to turn on notifications and campaigns without writing a line of code – and when to use the API.
Transactional vs marketing SMS: the differences you must know
How transactional and marketing SMS differ in law, copy, consent and effectiveness – and why confusing them can cost you GDPR compliance and sender reputation.