The Best 32 CALLR Alternatives

  • Atomic SMS Sender

    Download free bulk SMS software to send bulk text messages from PC. Send anonymous SMS or mass sms messages from Atomic Bulk SMS Sender

    Free Windows Android iPhone

  • The SMS Works SMS API

    The SMS Works SMS API is low cost, reliable and easy to integrate. We have a simple and powerful USP. Customers only pay for delivered messages. Most companies charge...

    Commercial Web

  • BudgetSMS.net

    High quality and cheap SMS gateway with coverage of 900+ operators worldwide. ? Worldwide coverage ? Free testing ? Great pricing ? Easy HTTP(s) API

    Freemium Mac OS X Windows Linux Web Windows Mobile

  • SMSAPI

    SMSAPI.com is browser platform for bulk SMS and other SMS marketing solutions. SMSAPI offers bulk SMS, MMS, voicemailing, HLR services, shortcode, SMS notifications...

    Commercial Windows

  • Bulk SMS Services

    Sending Bulk SMS to the customers will engage the customers with your business and new offers. Customers engagement set a new level for the businesses.

    Commercial Web

  • MSG91 - Bulk SMS API

    Send SMS Using Bulk SMS API is an easiest way to send short information directly from your platform with bulk SMS services. Bulk SMS API allows users to send automated...

    Free Open Source Windows Linux Android iPhone

  • MessageMedia SMS

    Trusted by over 15,000 customers, MessageMedia offers a highly reliable messaging service for mission-critical enterprise communications. We support SMS, IP messaging...

    Commercial Web

  • TellusTalk

    This generation's digital mailman. 2way business class communication including SMS, Email, Fax, secure messages, messages with a digital signature. In operation...

    Commercial Mac OS X Windows Linux Chrome OS Web

  • TumaSMS

    SMS Messaging, Simplified. Compliant, reliable and scalable SMS infrastructure for business-critical transactional and marketing messages.

    Commercial Web

  • Wavecell

    Wavecell allows its customers to send SMS over the World using 3 different mediums: - A web-based SMS sender (GUI) with an intuitive interface - An HTTP API to be...

    Freemium Mac OS X Windows Web