Heullo by Primetel

Business SMS for Cyprus

Send campaigns and single messages, receive replies in a live inbox, and connect your own systems through a REST API. Prepaid, billed per SMS part, with no monthly fees.

Everything you need to reach customers by SMS

One platform for outbound campaigns, two-way conversations and automated messages.

  • Bulk campaigns

    Send to a contact list, now or at a scheduled time. Pause, resume or cancel a campaign while it runs, and watch its progress live.

  • Single SMS

    Send one message to one recipient, with the character count and the number of parts shown as you type.

  • Two-way SMS

    Receive replies in a live inbox and answer from it. Use a dedicated inbound number, or a keyword on a shared number, with optional auto-replies, email copies and webhooks.

  • Short codes in Cyprus

    Customers can text a Cyprus short code as well as a full mobile number to reach you.

  • Email-to-SMS

    Email <number>@mail.heullo.com from an authorised address and the body is sent as an SMS. Your domain must pass SPF or DKIM, and an optional security code in the subject adds a second check.

  • Calendar reminders

    Connect Google Calendar or Microsoft 365 and set a rule, such as a text 24 hours before each appointment. Reminders then go out on their own.

  • REST API

    Send messages, handle inbound SMS, manage contacts and read reports from your own systems, authenticated with a bearer token.

  • Contacts and lists

    Import contacts from a CSV file, organise them into lists, and use imported columns as variables in your messages.

  • Dashboard and reports

    See volumes and delivery rates at a glance, run reports over any date range, and export the figures as a file.

  • Organizations

    Work as a team: invite colleagues into your organization as admins or members.

  • Sender IDs

    Send under your business name. Request a sender ID of 3 to 11 letters and use it once approved. Every account starts with the approved sender ID HEULLO.

How it works

  1. Contact us

    Tell us about your business and what you want to send.

  2. We set up your account

    You get a login for your organization, with the sender ID HEULLO ready to use.

  3. We add your credits

    The Heullo team adds prepaid credits to your account.

  4. Start sending

    From the web app, by email or through the API.

Simple, prepaid pricing

Prepaid credits with no monthly fees and no minimum spend. Credits are added by the Heullo team; there is no online top-up.

  • SMS to Cyprus

    €0.015per SMS part

    A part holds 160 Latin characters, or 140 Greek, Cyrillic, Arabic or Hebrew characters. A longer message is sent as several parts.

  • Sender ID

    €10one-off

    Charged once, when your sender ID is approved.

  • Keyword

    €10per month

    Claims your keyword on a shared number, so matching messages reach your inbox.

No extra charge

Receiving inbound SMS, calendar reminders and Email-to-SMS cost nothing beyond the SMS parts they send.

Contact us for a trial

For developers

The Heullo REST API covers sending, inbound messages, contacts and reporting. Requests carry a bearer token, and webhooks deliver inbound messages and delivery receipts to your own endpoints.

Frequently asked questions

How am I charged?

Per SMS part. A part holds 160 Latin characters, or 140 Greek, Cyrillic, Arabic or Hebrew characters, so a 200-character Latin message is two parts.

Do I pay for a message the network rejects?

No. Credits are taken before a message is handed to the mobile network and returned if the network rejects it.

Can customers reply to my messages?

Yes, with a dedicated inbound number or a keyword on a shared number. Replies cannot be sent to a sender ID that is a name rather than a number.

How do I add credits?

The Heullo team adds prepaid credits to your account. Contact us to arrange a top-up.

Can I try Heullo first?

Yes. Contact us for a trial and we will set up your account.

Ready to start sending?

Tell us what you need and we will set up your account.

Contact us