Retail promotions
Black Friday, sales, birthday coupons.
Product · Bulk SMS
Bulk SMS for business – thousands of messages at once.
Bulk sending from the panel (CSV import) or via API with a single call. Straight from a carrier, from PLN 0.075 per SMS, no subscription.
- 100 free SMS to start
- From PLN 0.075, no subscription
- Operator in the UKE registry
- Up to 100 numbers per API call
Why bulk SMS with SENDLY
A carrier, not a middleman
You send straight from a UKE-registered operator, with no chain of intermediaries along the way.
Pay only for what you send
Pay-as-you-go from PLN 0.075, no subscription or bundles. Prepaid account: you can spend at most your balance – full control over campaign budget.
Two ways to send
A campaign from the panel (CSV import, personalisation, scheduling) or from your own system via REST API.
Custom sender ID
Recipients see your company name instead of a number.
What you get.
Personalization {field}
Name, code, amount, any field from your CSV – directly in the message.
Up to 100k SMS/h
Infrastructure scales for your campaign. No queuing, no delays.
Campaign scheduling
Send now, tomorrow at 9 AM, or recurring monthly.
CSV / XLSX import
Drag and drop. Number validation on the fly. Duplicates filtered.
Real-time reports
Dashboard with deliverability, errors, campaign ROI.
A/B testing
Two message versions, automated conversion measurement.
Where it fits.
Crisis communication
Outage, alert, opening hours change – to everyone at once.
Invitations and events
Conferences, webinars, store openings.
Bulk SMS – frequently asked questions
You pay only for messages actually sent: from PLN 0.075 per SMS, with no subscription, activation fees or minimum top-ups. Estimate campaign cost with the calculator on the pricing page.
You get 100 free SMS on sign-up (no card) – enough to test sending and delivery. After that you pay only for what you send.
With a single /api/sms-multi call you send the same message to up to 100 numbers (numbers must be unique Polish mobile numbers). The feature is activated for your token by customer support. Larger campaigns run as consecutive calls or from the panel.
Yes – you set the sender ID and recipients see your company name instead of a number. More in the Sender ID article on our blog.
They are two names for the same thing: sending a large number of messages at once. With SENDLY you do it from the panel (CSV import) or via the API.
Recipients' consent to marketing communication. How to collect and document it is covered in our blog guide on GDPR in SMS marketing.
Start sending SMS today.
100 free messages. No credit card. No subscription. Activation in 30 seconds.