Authkey - SMS & WhatsApp API Alternatives

Authkey - SMS & WhatsApp API is described as 'Authkey is a versatile multiple channels platform, including SMS API, WhatsApp Business API, Email, Voice Call APIs, and various authentication methods such as OTP, 2FA, and more' and is an website in the office & productivity category. There are more than 50 alternatives to Authkey - SMS & WhatsApp API, not only websites but also apps for a variety of platforms, including SaaS, Android, iPhone and Windows apps. The best Authkey - SMS & WhatsApp API alternative is UniStack. It's not free, so if you're looking for a free alternative, you could try Wazo or Fonoster. Other great sites and apps similar to Authkey - SMS & WhatsApp API are Smarter Contact, Twilio, Lead Sherpa and Textmagic.

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Alternatives list

  1. Bulk SMS Services icon

    Bulk SMS Services

     1 like
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    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.

    43 Bulk SMS Services alternatives

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Online
     
  2. ultramsg icon

    ultramsg

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    Not just a message.

    Cost / License

    • Subscription
    • Proprietary

    Platforms

    • Online
    ultramsg screenshot 1
     
  4. UNIFONIC icon

    UNIFONIC

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    Unifonic is a customer engagement platform that enables organizations to delight customers with remarkable omnichannel experiences. By unifying communication channels, messaging apps, and chatbots, Unifonic streamlines conversations at every touch point throughout the customer...

    48 UNIFONIC alternatives

    Cost / License

    • Pay once
    • Proprietary

    Platforms

    • Online
     
  5. Ad
    Screenshot
    Atomic SMS Sender icon
    Atomic SMS Sender

    Atomic SMS Sender supports 800 networks worldwide, enabling mass text ads, alerts, and notifications. Offers competitive pricing, dynamic sender IDs, free SMS testing, API integration, and a desktop or browser interface for seaml...

    https://www.massmailsoftware.com
    Learn More
  6. Kwiqreply icon

    Kwiqreply

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    With kwiqreply's WhatsApp Business API, you can revolutionize the way you interact with your customers. Our API integrates with your existing systems to bring the power of WhatsApp messaging directly to your company.

    Cost / License

    • Subscription
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
    Kwiqreply screenshot 1
     
  7. 46elks icon

    46elks

     7 likes
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    Receive & send SMS messages, allocate phone numbers, control incoming phone calls, build IVRs, connect calls and create automated outgoing phone calls. Simply Voice, SMS & MMS in one easy API.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Self-Hosted
     
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