ClickSend is described as 'is cloud-based business communication software that anyone at any level can use to create unique campaigns using a constantly evolving suite of products - SMS, Email, Direct Mail, Fax, Letters and more' and is an app in the Social & Communications category. There are more than 10 alternatives to ClickSend for Online / Web-based, SaaS and Self-Hosted solutions. The best alternative is Sendinblue, which is free. Other great apps like ClickSend are Twilio (Freemium), MessageBird (Paid), Plivo (Paid) and SendSMSGate (Paid).
Twilio is a web-service API that lets you use your existing web languages and skills to build voice and SMS applications. We focus on building a simple, powerful, pay-as-you-go communications platform so that you can focus on what you do best.
Plivo is a voice and SMS API platform that enables developers and enterprises to build powerful apps with great features. With 24/7 free tech support and low prices, Plivo can help your business scale globally.
International Communication Platform as a Service (CPaaS) provider with zero-hop connectivity to telecoms globally. It supports all major mobile communication channels, like SMS, email, WhatsApp, Viber, voice, video and more, over API and web UI.
WhatsApp is a popular messaging platform around the globe. With Maytapi you can send and receive messages from WhatsApp using simple HTTP requests. Integrate your marketing or business platform (Shopify, Woocommerce, CRM ets.) to WhatsApp easily.